Entries |
Document | Title | Date |
20080300417 | Slurry reaction system - The present invention provides a slurry reaction system wherein liquid reaction mixture containing catalyst fines is separated from catalyst particles of a size suitable for use in the slurry reaction in a first separation step and in a subsequent separation step the catalyst fines are separated from liquid reaction mixture. | 12-04-2008 |
20090131692 | INTEGRATED PREPARATION AND SEPARATION PROCESS - Integrated preparation and separation process comprising a preparation process wherein a byproduct is produced; and a gas separation process wherein a first component is separated from a mixture of components by diffusion of the first component through a porous partition into a stream of sweeping component; wherein the byproduct produced in the preparation process is subsequently used as the sweeping component in the separation process, and an industrial set-up for use in such a process. | 05-21-2009 |
20090198075 | SYNTHESIS OF DIESTER-BASED BIOLUBRICANTS FROM EPOXIDES - The present invention is generally directed to methods of making diester-based lubricant compositions, wherein formation of diester species proceeds via direct esterification of epoxide intermediates. In some embodiments, the methods for making such diester-based lubricants utilize a biomass precursor and/or low value (e.g., Fischer-Tropsch (FT) olefins and/or alcohols) so as to produce high value diester-based lubricants. In some embodiments, such diester-based lubricants are derived from FT olefins and tatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation. | 08-06-2009 |
20090216032 | ETHYLENE OXIDE RECOVERY PROCESS - An improved process for the recovery of a high-purity, ethylene oxide-water stream for use as feed to integrated ethylene glycol or ethylene oxide purification reactors by first contacting the gaseous effluent from ethylene oxide reactors with an aqueous alkaline quench solution water wash, then absorbing ethylene oxide from the washed vapor into process water to produce a dilute EO-water absorbate of which 10-90% is sent directly to the EO reabsorber/residual absorber, thereby bypassing the EO stripper. | 08-27-2009 |
20090216033 | Epoxidation catalyst - Titanium or vanadium zeolite catalysts are prepared by reacting a titanium or vanadium compound, a silicon source, a templating agent, and a hydrophobic hydrocarbon wax at a temperature and for a time sufficient to form a molecular sieve. The catalyst is useful in olefin epoxidation with hydrogen peroxide. | 08-27-2009 |
20090270640 | METHOD FOR PRODUCTION OF ETHYLENE OXIDE IN A MICROCHANNEL REACTOR - Processes for preparing ethylene oxide, the process comprising: (a) providing a catalyst-comprising microchannel reactor; (b) feeding (i) an ethylene-comprising stream and (ii) a stream comprising oxygen, an oxygen source or both, into the microchannel reactor; and (c) continuously feeding one or more components selected from the group consisting of alkyl halides, nitrogen-comprising compounds, and mixtures thereof into the microchannel reactor in a concentration of from 0.3 to 50 ppm by volume, each based on the total volume flow of all streams introduced into the reactor. | 10-29-2009 |
20090281339 | PROCESS FOR THE START-UP OF AN EPOXIDATION PROCESS, A PROCESS FOR THE PRODUCTION OF ETHYLENE OXIDE, A 1,2-DIOL, A 1,2-DIOL ETHER, A 1,2-CARBONATE, OR AN ALKANOLAMINE - A process is provided for the start-up of an ethylene epoxidation process comprising: (a) contacting a catalyst bed comprising a high selectivity epoxidation catalyst with a feed comprising ethylene, oxygen and an organic chloride for a period of time until an increase of at least 1×10 | 11-12-2009 |
20100016615 | PROCESS FOR PRODUCTION OF HEXAFLUOROPROPYLENE OXIDE - There is provided a process for producing hexafluoropropylene oxide which is novel and capable of achieving a higher yield. An organic phase comprising hexafluoropropylene (HFP) in an organic solvent and an aqueous phase comprising an oxygen-containing oxidizing agent in water are supplied to a small space (or microspace), preferably together with a phase transfer catalyst. The organic phase and the aqueous phase are contacted with each other in the small space, thereby reacting hexafluoropropylene (HFP) with the oxygen-containing oxidizing agent, preferably by an action of the phase transfer catalyst to give hexafluoropropylene oxide (HFPO). After the reaction, the organic phase and the aqueous phase are taken out from the small space to obtain an organic phase comprising the hexafluoropropylene oxide (HFPO). | 01-21-2010 |
20100094030 | Preparation Of Alicyclic Diepoxides - Embodiments in accordance with the present invention provide alicyclic diepoxide compounds and methods for forming such compounds. Such methods encompass charging a reaction vessel with an appropriate diene and an appropriate dienophile and causing such to react to form and recover a desired alicyclic diepoxide precursor where such precursor is subsequently epoxidized. Such compounds encompass alicyclic diepoxides having purities of at least 95 percent or at least 98 percent with respect non-isomeric residues and are essentially free of any isomeric alicyclic diepoxide residues. | 04-15-2010 |
20100168449 | Spray dried zeolite catalyst - An attrition-resistant catalyst is prepared contacting a spray dried zeolite with a modifying agent. The modifying agent is (i) a halogen-free compound hydrolyzable to an oxide selected from the group consisting of silica, alumina, titania, zirconia, niobia, and mixtures thereof; or (ii) a sol selected from the group consisting of silica, alumina, titania, zirconia, niobia, and mixtures thereof. | 07-01-2010 |
20100185001 | PROCESS AND APPARATUS FOR THE PRODUCTION OF ETHYLENE OXIDE - The invention provides a process and an apparatus for the production of ethylene oxide from ethylene. Ethylene and oxygen are supplied to reactor tubes, wherein the reactor tubes are held by upper and lower tube sheets in a reactor vessel. The reactor vessel has a separation grid, dividing the reactor vessel into an upstream zone and a downstream zone. Coolant is supplied to the upstream zone from an upper coolant circuit and is removed from the upstream zone to the upper coolant circuit. A portion of coolant is removed as vapour from the upper coolant circuit. Coolant is supplied to the downstream zone from a lower coolant circuit and is removed from the downstream zone to the lower coolant circuit. Additional coolant is added to the lower coolant circuit. There is net flow of coolant through the separation grid from the downstream zone to the upstream zone. | 07-22-2010 |
20100204494 | METHOD AND APPARATUS FOR PRODUCING MIXED GAS, AND APPARATUS AND METHOD FOR PRODUCING EPOXY COMPOUND - There is provided a method for producing a mixed gas which contains a combustion assisting gas and a combustible gas characterized in that the method includes the steps of:
| 08-12-2010 |
20100204495 | HYDROCARBON/OXYGEN INDUSTRIAL GAS MIXER WITH WATER MIST - A hydrocarbon-containing gas is mixed with an oxygen-containing gas in a gas mixer in the presence of a water mist. The water mist surrounds and contacts entrained particles in either the oxygen-containing gas stream or the hydrocarbon-containing gas stream. The water acts to suppress and prevent ignition of the hydrocarbon gas in the mixer by serving as a sink for heat created by energetic collisions between such particles and structures within the gas mixer. The water mist also acts to quench ignition caused by such collisions. The water mist can be introduced into the gas mixer in a number of different configurations, including via nozzles injecting a mist into a hydrocarbon gas manifold or an oxygen gas manifold, nozzles placed within the gas mixer adjacent to ends of the oxygen supply pipes, and nozzles placed coaxially within the oxygen supply pipes in the gas mixer. | 08-12-2010 |
20100204496 | HYDROCARBON/OXYGEN INDUSTRIAL GAS MIXER WITH COARSE WATER DROPLET ENVIRONMENT TO REDUCE IGNITION POTENTIAL - A hydrocarbon-containing gas is mixed with an oxygen gas in a gas mixer in the presence of coarse water droplet environment, e.g., a ‘rainy’ or ‘driving rainstorm’ environment in which the water droplets generally have a size greater than 200 microns SMD. The water droplets surround and contact entrained particles in either the oxygen gas stream or the hydrocarbon-containing gas stream. The water acts to suppress, prevent and quench ignition of the hydrocarbon gas in the mixer which would otherwise be caused by energetic collisions between such particles and structures within the gas mixer. In one configuration the gas mixer includes water pipes having coarse water droplet-producing nozzles at the peripheral end thereof concentrically located within oxygen supply pipes. Additionally, nozzles introduce coarse water droplets into a pipe carrying the hydrocarbon gas and forming a mixing chamber for the hydrocarbon and oxygen gases. | 08-12-2010 |
20100267973 | METHODS FOR ENHANCING THE EFFICIENCY OF RHENIUM-PROMOTED EPOXIDATION CATALYSTS AND EPOXIDATION METHODS UTILIZING THESE - A method for enhancing the efficiency of a rhenium-promoted epoxidation catalyst is provided. Advantageously, the method may be carried out in situ, i.e., within the epoxidation process, and in fact, may be carried out during production of the desired epoxide. As such, a method for the epoxidation of alkylenes incorporating the efficiency-enhancing method is also provided, as is a method for using the alkylene oxides so produced for the production of 1,2-diols, 1,2-carbonates, 1,2-diol ethers, or alkanolamines. | 10-21-2010 |
20100324316 | PREPARATION OF TITANOSILICATE ZEOLITE TS-1 - A method is disclosed for preparing crystalline titanosilicate zeolite TS-1 from a reaction mixture containing only sufficient water to produce zeolite TS-1. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product. | 12-23-2010 |
20110009651 | REGENERATION METHOD OF TITANOSILICATE CATALYST - The present invention provides a regeneration method of a titanosilicate catalyst, specifically provides a regeneration method of a titanosilicate catalyst which comprises contacting the titanosilicate catalyst deteriorated in catalytic ability with a nitrile compound or a mixture of water and a nitrile compound at a temperature from 25° C. to 200° C. | 01-13-2011 |
20110034710 | EPOXIDATION CATALYST, A PROCESS FOR PREPARING THE CATALYST, AND A PROCESS FOR THE PRODUCTION OF AN OLEFIN OXIDE, A 1,2-DIOL, A 1,2-DIOL ETHER, A 1,2-CARBONATE, OR AN ALKANOLAMINE - A catalyst for the epoxidation of an olefin comprising a carrier and, deposited on the carrier, silver, a rhenium promoter, a first co-promoter, and a second co-promoter; wherein the molar ratio of the first co-promoter to the second co-promoter is greater than 1; the first co-promoter is selected from sulfur, phosphorus, boron, and mixtures thereof; and the second co-promoter is selected from tungsten, molybdenum, chromium, and mixtures thereof; a process for preparing the catalyst; a process for preparing an olefin oxide by reacting a feed comprising an olefin and oxygen in the presence of the catalyst; and a process for preparing a 1,2-diol, a 1,2-diol ether, a 1,2-carbonate, or an alkanolamine. | 02-10-2011 |
20110034711 | TITANOSILICATE - A layered titanosilicate obtained by contacting a layered borosilicate with a titanium source and an inorganic acid, and a method for producing an epoxy compound wherein the layered titanosilicate is used as a catalyst. | 02-10-2011 |
20110054197 | METHOD FOR THE PRODUCTION OF EPICHLOROHYDRIN - The invention relates too method for the production of epichlorohydrin, wherein a chloropropane-containing ally chloride in excess is reacted in a first reaction stage with hydrogen peroxide. The non-reacted ally chloride is separated and returned to the reaction, wherein part of the separated ally chloride is added to a second reaction stage and reacted with hydrogen peroxide, wherein the hydrogen peroxide quantity is selected in the second reaction stage such that the ally chloride is largely reacted. The chloropropanes are separated from the reaction mixture of the second reaction stage by means of distillation and removed from the process. | 03-03-2011 |
20110112314 | PROCESS FOR PRODUCING OLEFINS - The present invention provides a process for producing olefins, comprising:
| 05-12-2011 |
20110137053 | PROCESS FOR PRODUCING ETHYLENE OXIDE - The present invention provides a process for producing ethylene oxide, comprising:
| 06-09-2011 |
20110152546 | PROCESS FOR PRODUCING OLEFIN OXIDE - A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising a copper oxide and a ruthenium oxide on a porous support. | 06-23-2011 |
20110152547 | PROCESS FOR PRODUCING OLEFIN OXIDE - A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising (a) copper oxide, (b) ruthenium metal or ruthenium oxide and (c) alkaline metal component or alkaline earth metal component. | 06-23-2011 |
20110152548 | PROCESS FOR EPOXIDATION START-UP - A method for the start-up of a process for the epoxidation of ethylene comprising: initiating an epoxidation reaction by reacting a feed gas composition containing ethylene, and oxygen, in the presence of an epoxidation catalyst at a temperature of about 180° C. to about 210° C.; adding to the feed gas composition about 0.05 ppm to about 2 ppm of moderator; increasing the first temperature to a second temperature of about 240° C. to about 250° C., over a time period of about 12 hours to about 60 hours; and maintaining the second temperature for a time period of about 50 hours to about 150 hours. | 06-23-2011 |
20110152549 | PROCESS FOR INITIATING A HIGHLY SELECTIVE ETHYLENE OXIDE CATALYST - A start-up process for epoxidation of ethylene is provided. The process includes initiating an epoxidation reaction by reacting a feed gas composition in the presence of an epoxidation catalyst at a first temperature of about 180° C. to about 210° C. The first temperature is increased to a second temperature of about 230° C. to about 290° C., over a time period of about 6 hours to about 50 hours, while simultaneously adding a sufficient concentration of moderator so that the amount of moderator adsorbed on the catalyst after achieving the second temperature is from about 10 to about 50 g/m | 06-23-2011 |
20110251411 | Preparation of an active intermediate - A process for the preparation of an organic reactive intermediate that contains a combination of epoxy groups, hydroxy groups and unsaturated groups wherein the process can be utilized to control the amounts of each of the functional groups in the final product. The reactive intermediates are prepared from natural triglyceride plant and animal oils containing unsaturation. | 10-13-2011 |
20110282081 | Methods of Preparing 1-Deoxy-Sphingoid Bases and Derivatives Thereof - Novel methods of synthesizing 1-deoxy-sphingoid bases and derivatives are disclosed. The synthesis is achieved from commercially available and inexpensive starting materials. The process includes thioesterification, cross-coupling, and reduction. The process may also include directed epoxidation, regioselective epoxide-opening, hydrogenation, and dihydroxylation. The methods described herein provide 1-deoxy-sphingoid bases and derivatives in high overall yield and high enantiomeric purity. | 11-17-2011 |
20120029217 | PROCESS FOR PRODUCING EPOXY COMPOUND - According to the present, invention, a process for producing an epoxy compound, where an epoxy compound can be selectively produced from olefins with good yield at low cost in a safe manner by a simple operation under mild conditions without using a quaternary ammonium salt or a metal compound, is provided. The present invention relates to a process for producing an epoxy compound, comprising epoxidizing a carbon-carbon double bond of an organic compound having a carbon-carbon double bond by using hydrogen peroxide as an oxidant, wherein the epoxidation is carried by out using an organic nitrile compound and an organic amine compound. | 02-02-2012 |
20120041217 | TWO-STAGE CALCINATION FOR CATALYST PRODUCTION - The invention relates to an improved process for producing a catalyst useful for the epoxidation of ethylene to ethylene oxide. In forming the catalyst, a silver-impregnated support is subjected to two calcinations. The support is subjected to a first calcination in a first atmosphere comprising air. Next the support is subjected to a second calcination in a second atmosphere which is substantially entirely comprised of inert gas, and which second atmosphere is substantially absent of hydrogen. This two-stage calcination produces an improved catalyst which contains fewer organics left over under standard conditions of air calcination alone, while costing less than calcination in an inert gas alone. | 02-16-2012 |
20120108830 | METHOD FOR MANUFACTURING AN EPOXY COMPOUND AND METHOD FOR EPOXIDIZING A CARBON-CARBON DOUBLE BOND - The present invention provides a method for producing an epoxy compound, comprising oxidizing a carbon-carbon double bond of an organic compound by hydrogen peroxide in the presence of a neutral inorganic salt and a mixed catalyst of a tungsten compound (a), at least one phosphorus compound selected from the group consisting of phosphoric acids, phosphonic acids, and salts thereof (b) and a surfactant (c), and an epoxidizing method comprising oxidizing a carbon-carbon double bond by hydrogen peroxide in the presence of the catalyst and the neutral inorganic salt. | 05-03-2012 |
20120116102 | SILICON-TITANIUM MIXED OXIDE-CONTAINING DISPERSION FOR THE PRODUCTION OF TITANIUM-CONTAINING ZEOLITES - Dispersion containing pyrogenic silicon-titanium mixed oxide powders with a silicon dioxide content of 75 to 99.99 wt.-% and a titanium dioxide content of 0.01 to 25 wt. %, water and a basic, quaternary ammonium compound, wherein the mean aggregate diameter of the particles of the silicon-titanium mixed oxide powder in the dispersion is 200 nm at most. Process for the production of a titanium-containing zeolite with the use of the dispersion. | 05-10-2012 |
20120130095 | PROCESS FOR PRODUCING AN OXIRANE - A multiple liquid phase composition and process for preparing an oxirane product, such as epichlorohydrin, including a reaction mixture of: (a) at least one olefin, wherein the olefin is selected from one of (i) an aliphatic olefin or substituted aliphatic olefin, with the proviso that the aliphatic olefin is not propylene, (ii) a cycloaliphatic olefin, (iii) an aromatic olefin, (iv) a cycloaromatic olefin, and (v) mixtures thereof; (b) at least one peroxide compound, (c) at least one catalyst, and (d) and a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol or a combination of alcohols, and (ii) at least one non-reactive co-solvent; wherein the solvents are mixed at a predetermined concentration; wherein the non-reactive co-solvent has a different boiling point than the oxirane product; and wherein the oxirane product partitions into a high affinity solvent during the reaction. The process of the present invention advantageously produces a waste stream with no significant amount of sodium chloride (NaCl). In one embodiment, the present invention includes a process for preparing epichlorohydrin from allyl chloride and hydrogen peroxide including reacting (a) an allyl chloride with (b) hydrogen peroxide, in the presence of (c) a titanium silicalite-1 (TS-1) catalyst and (d) in the presence of a predetermined amount of a mixed solvent system; wherein the mixed solvent system includes at least (i) methanol and (ii) at least one non-reactive co-solvent. | 05-24-2012 |
20120283454 | PROCESS FOR PRODUCING OLEFIN OXIDE - A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising (a) copper oxide, (b) ruthenium metal or ruthenium oxide and (c) alkaline metal component or alkaline earth metal component. | 11-08-2012 |
20120283455 | PROCESS FOR PRODUCING OLEFIN OXIDE - A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising a copper oxide and a ruthenium oxide on a porous support. | 11-08-2012 |
20120316352 | PREPARATION OF TITANOSILICATE ZEOLITE TS-1 - A method is disclosed for preparing crystalline titanosilicate zeolite TS-1 from a reaction mixture containing only sufficient water to produce zeolite TS-1. In one embodiment, the reaction mixture is self-supporting and may be shaped if desired. In the method, the reaction mixture is heated at crystallization conditions and in the absence of an added external liquid phase, so that excess liquid need not be removed from the crystallized product. | 12-13-2012 |
20120316353 | EPOXIDATION OF AN OLEFIN - The present invention provides one or more embodiments of a process for the epoxidation of an olefin. For the embodiments, the process includes reacting the olefin, with the proviso that the olefin is not propylene, with a hydrogen peroxide solution at a predetermined pH in the presence of a catalyst and a solvent at a predetermined reaction temperature. The pH of the hydrogen peroxide solution is adjusted to the predetermined pH by contacting the hydrogen peroxide solution with a supported base to remove acidic species from the hydrogen peroxide solution. | 12-13-2012 |
20120330041 | MANUFACTURE OF AN EPOXYETHYL ETHERS OR GLYCIDYL ETHERS - Processes are provided for the formation of an epoxyethyl ether or a glycidyl ether. In one embodiment, a process is provided for the manufacture of an epoxyethyl ether or glycidyl ether including reacting a vinyl ether or an allyl ether with an oxidant in the presence of a water-soluble manganese complex in an aqueous reaction medium, wherein the water-soluble manganese complex comprises an oxidation catalyst, characterized in that the water-soluble manganese complex is a mononuclear complex of the general formula (I): [LMnX | 12-27-2012 |
20130005998 | PROCESS FOR PREPARING DIVINYLARENE DIOXIDES - A process for preparing a divinylarene dioxide including reacting (a) at least one divinylarene; (b) at least one oxidant, wherein the at least one oxidant is a partially neutralized sulfuromonoperoxoic acid such as partially neutralized Caro's acid solution; (c) at least one basic compound; (d) optionally, at least one solvent, and (e) optionally, at least one catalyst; wherein the process is carried out under conditions to form a divinylarene dioxide product. | 01-03-2013 |
20130005999 | METHOD FOR REGENERATING TITANOSILICATE CATALYSTS - A method for regenerating a titanosilicate catalyst, comprising a step of mixing a titanosilicate having reduced catalytic ability with a cyclic secondary amine, and a method for producing an oxirane compound, which comprises a step of reacting hydrogen peroxide with a C2-C12 compound having a carbon-carbon double bond, in the presence of a titanosilicate catalyst obtained by the regeneration method. | 01-03-2013 |
20130012731 | PRETREATED EPOXIDATION CATALYST AND A PROCESS FOR PRODUCING AN OLEFIN THEREWITH - A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly. | 01-10-2013 |
20130018196 | PROCESS FOR PRODUCING PROPYLENE OXIDE USING A PRETREATED EPOXIDATION CATALYST - A process for preparing propylene oxide by epoxidizing propylene with an oxidant in the presence of a pretreated catalyst; wherein the catalyst comprises an activated titanium silicalite with MFI structure (TS-1) catalyst; and wherein the catalyst has been activated by pretreatment with methanol to form the pretreated catalyst. The pretreated TS-1 catalyst may be used in the epoxidizing propylene reaction with no additional methanol added; and the pretreated catalyst has equivalent activity to TS- | 01-17-2013 |
20130041165 | PROCESS FOR PREPARING DIVINYLARENE DIOXIDES - A process for preparing a divinylarene dioxide including reacting (a) at least one divinylarene; (b) at least one oxidant, wherein the at least one oxidant includes a peroxomonosulfate triple salt oxidant, and wherein the at least one oxidant is less than about 2.0 equivalents to C═C; (c) at least one solvent, (d) at least one basic compound, and (e) optionally, at least one catalyst; under conditions to form a divinylarene dioxide product. | 02-14-2013 |
20130053585 | GAS SEPARATIONS WITH REDOX-ACTIVE METAL-ORGANIC FRAMEWORKS | 02-28-2013 |
20130072700 | PROCESS AND APPARATUS FOR THE PRODUCTION OF ETHYLENE OXIDE - The invention provides a process and an apparatus for the production of ethylene oxide from ethylene. Ethylene and oxygen are supplied to reactor tubes, wherein the reactor tubes are held by upper and lower tube sheets in a reactor vessel. The reactor vessel has a separation grid, dividing the reactor vessel into an upstream zone and a downstream zone. Coolant is supplied to the upstream zone from an upper coolant circuit and is removed from the upstream zone to the upper coolant circuit. A portion of coolant is removed as vapour from the upper coolant circuit. Coolant is supplied to the downstream zone from a lower coolant circuit and is removed from the downstream zone to the lower coolant circuit. Additional coolant is added to the lower coolant circuit. There is net flow of coolant through the separation grid from the downstream zone to the upstream zone. | 03-21-2013 |
20130079534 | METHOD FOR PRODUCING OLEFIN OXIDE - According to a conventional method for producing an olefin oxide, hydrogen peroxide and an olefin oxide as a product are obtained in the state of a mixture, and in order to decrease the content of hydrogen peroxide in the mixture, it is necessary to distill the mixture to separate hydrogen peroxide from the olefin oxide. The present invention provides a method for producing an olefin oxide including a reaction step of reacting hydrogen peroxide with an olefin in the presence of a solvent and a titanium silicate catalyst; and a step of mixing a reducing agent containing at least one selected from the group consisting of a sulfide and hydrazine with the reaction solution obtained in the reaction step. | 03-28-2013 |
20130096328 | PROCESS FOR PREPARING AN EPOXIDE FROM AN OXYGENATE - The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the production of a lower olefin from the oxygenate and the subsequent epoxidation of the lower olefin is combined and wherein isobutene, a by-product of the lower olefin production, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide. | 04-18-2013 |
20130096329 | PROCESS FOR PREPARING AN EPOXIDE FROM AN OXYGENATE - The invention relates to an integrated process for preparing an epoxide from an oxygenate, wherein the oxygenate is converted into a lower olefin and the lower olefin is subsequently epoxidised, and wherein isobutane obtained after hydrogenation and subsequent normal/iso separation of C4 hydrocarbons obtained as by-product of the oxygenate conversion, is converted into a hydroperoxide that is used for the conversion of the lower olefin into the corresponding epoxide. | 04-18-2013 |
20130096330 | EPOXIDATION PROCESS WITH ADDED MODERATOR - A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature. | 04-18-2013 |
20130116453 | ORDERED MESOPOROUS TITANOSILICATE AND THE PROCESS FOR THE PREPARATION THEREOF - The invention discloses three-dimensional, ordered, mesoporous titanosilicates wherein the Ti is in a tetrahedral geometry and exclusively substituted for Si in the silica framework. Such titanosilicates find use as catalysts for epoxidation, hydroxylation, C—H bond oxidation, oxidation of sulfides, aminolysis of epoxide and amoximation, with approx. 100% selectivity towards the products. | 05-09-2013 |
20130144073 | EFFICIENT FIXED BED PLATFORM FOR PRODUCTION OF ETHYLENE OXIDE BY PARTIAL OXIDATION OF ETHYLENE USING CATALYST OF WIDE SELECTIVITY - At least one method to efficiently produce alkylene oxide from partial oxidation of hydrocarbons using a high efficiency heterogeneous catalyst in a fixed bed enclosed within a reaction vessel, and a reaction vessel constructed to facilitate the same. | 06-06-2013 |
20130144074 | PROCESS FOR PRODUCING OLEFIN OXIDE - A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising (a) ruthenium metal or a ruthenium oxide, (b) manganese oxide and (c) alkaline metal component or alkaline earth metal component. | 06-06-2013 |
20130204018 | MICROPOWDER AND MOLDING CONTAINING A ZEOLITIC MATERIAL CONTAINING TI AND ZN - The present invention relates to a micropowder, wherein the particles of the micropowder have a Dv10 value of at least 2 micrometer and the micropowder comprises mesopores which have an average pore diameter in the range of from 2 to 50 nm and comprise, based on the weight of the micropowder, at least 95 weight-% of a microporous aluminum-free zeolitic material of structure type MWW containing titanium and zinc. | 08-08-2013 |
20130211112 | METHOD FOR PRODUCING OXIDIZED OLEFIN THROUGH OLEFIN EPOXIDATION - A process for producing an alkylene oxide by olefin epoxidation, wherein said process comprises the steps of: (1) in a first olefin epoxidation condition, in the presence of a first solid catalyst, a first mixed stream containing a solvent, an olefin and H | 08-15-2013 |
20130237713 | PROCESS FOR PREPARING ETHYLENE AND PROPYLENE - The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst to retrieve an olefinic product stream comprising ethylene and/or propylene, and a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins. The C4+ hydrocarbon fraction is subjected to an etherification process with wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether and an etherification product stream is retrieved and separated into an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream. Part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons while another part of the iso-olefin-depleted C4+ hydrocarbon stream is recycled. The tert-alkyl ether in the ether-enriched stream is converted to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst. | 09-12-2013 |
20130237714 | PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED C4 OLEFINIC PRODUCT - The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product, comprising the steps of:
| 09-12-2013 |
20130237715 | PROCESS FOR PREPARING ETHYLENE AND PROPYLENE - The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of:
| 09-12-2013 |
20130245290 | PROCESS FOR PREPARING ETHYLENE AND PROPYLENE - The present invention provides a process for preparing ethylene and propylene, comprising the step of:
| 09-19-2013 |
20130245291 | PROCESS FOR PREPARING ETHYLENE AND PROPYLENE - The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprising:
| 09-19-2013 |
20130245292 | PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED OLEFINIC PRODUCT - The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product, comprising the steps of:
| 09-19-2013 |
20130245293 | PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE - The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of providing a hydrocarbon stream, comprising C4+ normal olefins and C4+ iso-olefins; converting C4+ isoolefins to tert-alkyl ether and separating the ethers from the hydrocarbon stream; isomersing the C4+ normal olefins to iso-olefins and converting C4+ isoolefins to tert-alkyl ether and separating the ethers from the hydrocarbon stream; converting the obtained tert-alkyl ether to ethylene and propylene by contacting the tert-alkyl ether with a molecular sieve-comprising catalyst and retrieving an olefinic product. | 09-19-2013 |
20130245294 | METHOD FOR START-UP OF AN OXYGENATE-TO-OLEFIN PROCESS - The present invention provides a method for start-up of an Oxygenate-to-Olefins process, which process comprises the steps:
| 09-19-2013 |
20130245295 | PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND A BUTADIENE-ENRICHED PRODUCT - The present invention provides a process for preparing ethylene and propylene and a butadiene-enriched product, comprising the steps of:
| 09-19-2013 |
20130261322 | PROCESS FOR THE EPOXIDATION OF FATTY ACIDS, THEIR ESTERS AND MIXTURES THEREOF - The present invention relates to an improved process for preparing mono and poly epoxy functionalized fatty acids, their esters and mixtures thereof using solid catalyst i.e. supported group VIb metal oxide, said support comprising silica, alumina and mixtures thereof, optionally with a promoter from group VA wherein the group VIB metal oxide content in the catalyst is 5-20 wt % of support. | 10-03-2013 |
20130261323 | INTEGRATED METHODS OF PREPARING RENEWABLE CHEMICALS - Isobutene, isoprene, and butadiene are obtained from mixtures of C | 10-03-2013 |
20130281722 | PROCESS FOR PRODUCING OLEFIN OXIDE - A process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a catalyst comprising a copper oxide and a tellurium oxide. | 10-24-2013 |
20130296586 | DIRECT CONVERSION OF OLEFIN TO OLEFIN OXIDE BY MOLECULAR OXYGEN - The present invention relates to a direct conversion of olefin to olefin oxide, which are important and versatile intermediates used in the production of a large variety of valuable consumer products such as polyurethane foams, polymers, alkylene glycol, cosmetics, food emulsifiers and as fumigants and insecticides. More specifically, the present invention provides a process for producing an olefin oxide which comprises reacting an olefin with oxygen in the presence of a halogen compound additive and a catalyst comprising copper, ruthenium or both thereof. | 11-07-2013 |
20140066642 | METHOD OF SYNTHESIS OF SUBSTITUTED HEXITOLS SUCH AS DIANHYDROGALACTITOL - The present invention provides an efficient method of synthesizing and purifying dianhydrohexitols such as dianhydrogalactitol. In general, as applied to dianhydrogalactitol, the method comprises: (1) reacting dulcitol with a concentrated solution of hydrobromic acid at a temperature of about 80° C. to produce dibromogalactitol; (2) reacting the dibromogalactitol with potassium carbonate in t-butanol to produce dianhydrogalactitol; and (3) purifying the dianhydrogalactitol using a slurry of ethyl ether to produce purified dianhydrogalactitol. Another method produces dianhydrogalactitol from dulcitol; this method comprises: (1) reacting dulcitol with a reactant to convert the 1,6-hydroxy groups of dulcitol to an effective leaving group to generate an intermediate; and (2) reacting the intermediate with an inorganic weak base to produce dianhydrogalactitol through an intramolecular S | 03-06-2014 |
20140100379 | CATALYST AND CATALYST CARRIER - The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiO | 04-10-2014 |
20140179936 | EPOXIDATION OF GLYCEROL AND DERIVATIVES THEREFROM - A method producing a surfactant from glycerol by converting glycerol, in a first step, to glycidol, polymerizing glycidol to an aliphatic alcohol and finally substituting a hydroxyl group with a substitute anion. | 06-26-2014 |
20140179937 | METHOD FOR PRODUCING EPOXIDE - A method for producing an epoxide is provided. The method includes a step of performing a reaction of an olefine compound and an oxidant to form the epoxide by using a titanium-silicon molecular sieve as a catalyst, thereby increasing the conversion rate of the oxidant and the yield of the epoxide. | 06-26-2014 |
20140187804 | PROCESS FOR REMOVING OXYGENATE FROM AN OLEFIN STREAM - The present invention relates to a process for removing oxygenate from an olefin stream comprising oxygenate, comprising providing to an oxygenate recovery zone the olefin stream comprising oxygenate and a solvent comprising propanol, treating the olefin stream comprising oxygenate with the solvent, and retrieving from the oxygenate recovery zone at least one oxygenate-depleted olefinic product stream comprising olefin and a spent solvent comprising at least part of the oxygenate. | 07-03-2014 |
20140187805 | PROCESS FOR REMOVING OXYGENATE FROM AN OLEFIN STREAM - The present invention relates to a process for removing dimethylether from an olefin stream comprising dimethylether, comprising: (a) providing to an oxygenate recovery zone the olefin stream comprising dimethylether and a methanol-comprising solvent, treating the olefin stream comprising dimethylether with the methanol comprising solvent, and retrieving at least a dimethylether-depleted, methanol-comprising olefin stream; and (b) providing to the oxygenate recovery zone a non-aqueous C2 to C4 alcohol solvent and treating the dimethylether-depleted, methanol-comprising olefin stream with the non-aqueous C2 to C4 alcohol solvent, and retrieving from the oxygenate recovery zone at least an olefinic product that is depleted in dimethylether and methanol and a spent solvent comprising at least one C2 to C4 alcohol and methanol. | 07-03-2014 |
20140200357 | EPOXIDATION PROCESS WITH POST-CONDITIONING STEP - A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having a post-conditioning step where the catalyst is exposed to reactor feed having a chlorides concentration of from about 5 ppm to about 7 ppm and at a temperature of about 215° C. to about 225° C. | 07-17-2014 |
20140213804 | PREPARATION OF NITRILE COMPOUNDS - The invention relates to novel nitrile compounds according to formula I and II: (I) Formula I wherein: X=—CH | 07-31-2014 |
20140350274 | METHODS FOR ASYMMETRIC E POXIDATION USING FLOW REACTORS - Embodiments of the present disclosure relate to asymmetric epoxidation of olefinic alcohols, using a chiral alcohol chelated titanium catalyst and an organic peroxide performed in a microreactor flow reactor system that can comprise multiple microreactor modules. Molecular sieves can be used to remove any adventitious water in the reagent feed solutions and ensure an anhydrous reaction solution. The use of a microreactor flow reactor allows for the epoxidation reaction to be run at elevated temperatures of at least 20, 30, or even 50° C., which dramatically accelerates the reaction, but without a large drop in enantioselectivity. The reaction can therefore be performed with short reaction times resulting in a high throughput. | 11-27-2014 |
20150073160 | PRODUCTION OF HEXAFLUOROPROPYLENE OXIDE - A process for the production of HFPO includes introducing a feedstock comprising HFP and molecular oxygen into a heated reaction zone of a reactor. The reaction zone is at a reaction temperature T | 03-12-2015 |
20150126756 | Production of Propylene Oxide - In a process for producing propylene oxide, cyclohexylbenzene is contacted with an oxygen-containing compound under oxidation conditions with or without a suitable catalyst to produce an oxidation reaction effluent comprising cyclohexylbenzene hydroperoxide. At least a portion of the cyclohexylbenzene hydroperoxide is then reacted with propylene in the presence of an epoxidation catalyst under conditions effective to produce an epoxidation reaction effluent comprising phenylcyclohexanol and propylene oxide. | 05-07-2015 |
20150141675 | METHOD FOR PRODUCING ALICYCLIC DIEPOXY COMPOUND - The present invention provides a method for producing an alicyclic diepoxy compound at a higher yield by carrying out epoxidation of an alicyclic olefin compound at a higher reaction rate. The method is a method for producing an alicyclic diepoxy compound represented by formula (1) below by reacting an alicyclic olefin compound represented by formula (2) below with hydrogen peroxide in the coexistence of the alicyclic olefin compound represented by formula (2) below, a hydrogen peroxide solution, a powdered solid catalyst support and a powdered solid catalyst all together: | 05-21-2015 |
20150141676 | METHOD FOR PRODUCING EPOXY COMPOUND - In order to produce an epoxy compound with a less chlorine content at a higher reaction rate and yield, the present invention provides a method for producing an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of the compound having a carbon-carbon double bond, the hydrogen peroxide solution, a powdered solid catalyst support and a powdered solid catalyst all together, the solid catalyst comprising isopolyacids produced from (a) tungstic acid or a salt thereof and (b) a quaternary ammonium salt compound and/or a pyridinium salt, selected from halogen-free compounds. | 05-21-2015 |
20150141677 | METHOD FOR PRODUCING EPOXY COMPOUND - A method is provided for carrying out epoxidation of an olefin compound with good productivity. The method produces an epoxy compound by reacting a compound having a carbon-carbon double bond with hydrogen peroxide by carrying out repeatedly or continuously the following steps: (1) reacting a compound having a carbon-carbon double bond with hydrogen peroxide in the coexistence of (a) the compound having a carbon-carbon double bond, (b) a hydrogen peroxide solution, (c) a powdered solid catalyst support, and (d) a powdered solid catalyst, and optionally further (e) an organic solvent to produce an epoxy compound; (2) separating the epoxy compound reaction product from the reaction mixture produced in (1); and (3) adding (d) and also adding (a), (b), (c), and optionally further (e) to the mixture of the powdered solid catalyst support and powdered solid catalyst after separating the reaction product in (2). | 05-21-2015 |
20150307467 | NOVEL NORBORNENE DERIVATIVE - A novel compound useful as a raw material for a resist material is described. A norbornene derivative having epoxy and a methylene-mediated reactive group in a norbornane skeleton is represented by the following formula. | 10-29-2015 |
20150376151 | THERMALLY INTEGRATED PROCESS FOR THE PRODUCTION OF ETHYLENE OXIDE FROM A FLOW OF ETHANOL - Process for dehydrating an ethanol feed to ethylene then oxidating the ethanol to ethylene oxide, comprising vaporizing the feed and a flow of diluting water comprising recycled ethanol to produce a vaporized feed, dehydrating a mixture of vaporized feed and a vaporized flow of diluting water comprising ethanol, separating the dehydration effluent into ethylene and water effluents, purifying at least a portion of the water effluent and separating a flow of treated water and a flow of diluting water comprising ethanol, recycling and vaporizing at least a portion of the separated diluting water by partial or complete vaporization in an exchanger using heat exchange with a quench flow obtained from the oxidation, said quench flow, cooled, then recycled to the oxidation reactor(s), and oxidation of the ethylene in the effluent comprising ethylene into ethylene oxide, this oxidation using a tubular oxidation reactor cooled by vaporization of said quench flow. | 12-31-2015 |
20160009673 | UNSATURATED FATTY ACID ESTER-BASED COMPOSITIONS USEFUL AS PLASTIC ADDITIVES | 01-14-2016 |
20160068498 | PROCESS FOR REMOVAL OF 1,2-EPOXY-5-HEXENE FROM EPICHLOROHYDRIN - The invention relates to a process for purification of epichlorohydrin containing 1,2-epoxy-5-hexene impurity, by
| 03-10-2016 |
20160167031 | SYNTHESIS OF FUNCTIONALIZED CARBON MICROSPHERES AND THEIR CATALYST ACTIVITY IN C-O AND C-N BOND FORMATION REACTIONS | 06-16-2016 |