Class / Patent application number | Description | Number of patent applications / Date published |
549531000 | Hydrogen peroxide utilized | 56 |
20080306290 | Process for Epoxidizing Propene - The present invention provides a process for the epoxidation of propene which comprises reacting propene with hydrogen peroxide in the presence of methanol as solvent and a titanium zeolite catalyst, the process further comprising separating propylene oxide from the reaction mixture to obtain a mixture comprising methanol, water, at least one carboxylic acid and at least one carbonyl compound, wherein the at least one carboxylic acid is at least partially neutralized, said process optionally comprising a hydrogenation stage. | 12-11-2008 |
20090030217 | PRODUCTION PROCESS OF BIFUNCTIONAL EPOXY MONOMER BY SELECTIVE OXIDATION OF DIOLEFIN COMPOUND - There is provided a novel method for producing a bifunctional epoxy monomer which comprises reacting diolefin with a hydrogen peroxide aqueous solution, in the presence of molybdenum or tungsten oxide as a catalyst to selectively epoxidize a double bound at a specific position. The bifunctional epoxy monomers provided by the present invention are substances widely used in various industrial fields such as chemical industry, as materials for resist materials (particularly solder resist materials), and intermediates of agrochemicals and medicines, and various polymers such as plasticizers, adhesives and coating resins. | 01-29-2009 |
20090082583 | Heterogeneous catalyst and process for producing oxirane compound with the catalyst - Process for producing an oxirane compound includes treating with hydrogen peroxide in the presence of either an olefin oxidation catalyst prepared from an organic compound or a polymer compound of formula (1) | 03-26-2009 |
20090131694 | SILICON-TITANIUM MIXED OXIDE POWDER, DISPERSION THEREOF AND TITANIUM-CONTAINING ZEOLITE PREPARED THEREFROM - Silicon-titanium mixed oxide powder, dispersion thereof and titanium-containing zeolite prepared therefrom Pyrogenic silicon-titanium mixed oxide powder, having a BET surface area of 200 to 400 m | 05-21-2009 |
20090149666 | Method for the production of bisepoxides and dithiols - Process for the preparation of bisepoxides, wherein a conjugated diene of the formula I | 06-11-2009 |
20090270641 | Method for Producing Propylene Oxide - A method for producing propylene oxide comprising a step of reacting hydrogen peroxide with propylene in the presence of an epoxidation catalyst in a liquid phase to produce propylene oxide and a step of recovering a recyclable constituent in a vent gas generated in the above step by absorbing the recyclable constituent in a solvent containing a nitrile. | 10-29-2009 |
20100016616 | OXIDIZING AGENT COMPOSITION FOR THE EPOXIDATION OF OLEFINS AND PROCESS FOR THE EPOXIDATION OF OLEFINS - The invention aims at providing an oxidizing agent composition capable of producing halogen-free epoxy compounds in high yield; and a process for the epoxidation of olefins with the composition. In order to attain the aim, the invention provides an oxidizing agent composition for the epoxidation of olefins which is characterized by containing an acid anhydride and a solid hydrogen peroxide adduct; and a process for the epoxidation of olefins which is characterized by reacting an olefin with a mixture obtained by mixing an acid anhydride with a solid hydrogen peroxide adduct. | 01-21-2010 |
20100022786 | Method for producing epoxy compound - An object of the present invention is to provide a method for producing an epoxy compound more efficiently from olefin, oxygen, and hydrogen. A method according to the present invention for producing an epoxy compound is a method for producing an epoxy compound from olefin, oxygen, and hydrogen. The method includes: (a) bringing a crystalline titanosilicate catalyst having an MFI structure into contact with a peroxide; and (b) reacting olefin, oxygen, and hydrogen with each other in a liquid phase in the presence of a noble metal catalyst and the crystalline titanosilicate catalyst obtained in the step (a). | 01-28-2010 |
20100076207 | 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 liquid polymer. The catalyst is useful in olefin epoxidation with hydrogen peroxide. | 03-25-2010 |
20100081834 | PROCESS FOR THE EPOXIDATION OF AN OLEFIN WITH IMPROVED ENERGY BALANCE - The invention relates to a process for the epoxidation of an olefin comprising
| 04-01-2010 |
20100113808 | Aqueous hydrogen peroxide solution, process for its preparation and use thereof - The present invention refers to an aqueous hydrogen peroxide solution having a hydrogen peroxide concentration [H | 05-06-2010 |
20100113809 | PROCESS FOR INTEGRATED CO-PRODUCTION OF HYDROGEN PEROXIDE AND EPOXIDIZED ESTERS - A process for the integral production and reactive consumption of hydrogen peroxide combines oxidation of a high-boiling secondary alcohol to form hydrogen peroxide and the ketone analog, recycle of a hydrogenated ketone/alcohol stream to the oxidation step, and epoxidation of unsaturated fatty acid esters utilizing a gaseous hydrogen peroxide stream as it is produced. The epoxidized esters are known to have desirable characteristics for use as plasticizers and similar products. | 05-06-2010 |
20100197946 | METHOD FOR PRODUCING PROPYLENE OXIDE - A method is for producing propylene oxide, the method including the steps of: reacting hydrogen peroxide with propylene either in an acetonitrile solvent or in a mixture of solvents which include acetonitrile and water, in presence of a titanosilicate catalyst, whereby a reaction mixture containing propylene oxide is obtained; separating the reaction mixture obtained in the reacting into a gas and a reaction liquid; and distilling the reaction liquid obtained in the separating, whereby the reaction liquid is separated into a column top liquid containing propylene oxide, and a column bottom liquid including acetonitrile or a combination of acetonitrile and water, in combination with other steps. This enables industrially efficient production of propylene oxide with use of acetonitrile. | 08-05-2010 |
20100331556 | Epoxidation process - This invention is a process for producing propylene oxide. The process comprises first contacting a titanium zeolite with a reaction feed comprising propylene, hydrogen peroxide, tertiary butyl alcohol, and water to produce a product stream comprising propylene, propylene oxide, propylene glycol, tertiary butyl alcohol, and water. The product stream is distilled to produce a first overhead stream comprising propylene and a first bottoms stream comprising propylene oxide, propylene glycol, tertiary butyl alcohol, and water. The first bottoms stream is distilled to produce a second overhead stream comprising propylene oxide and a second bottoms product stream comprising propylene glycol, tertiary butyl alcohol, and water. The second bottoms stream is distilled to produce a third overhead stream comprising an azeotrope of tertiary butyl alcohol and water and a third bottoms stream comprising propylene glycol and water. | 12-30-2010 |
20100331557 | PROCESS FOR THE MANUFACTURE OF 1,2-EPOXY-3-CHLOROPROPANE - Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a catalyst and in the possible presence of at least one solvent, in which the allyl chloride employed comprises less than 2000 ppm by weight of 1,5-hexadiene. | 12-30-2010 |
20110009652 | PROCESS FOR PRODUCTION OF EPOXY COMPOUND - A novel process for producing a polyfunctional epoxy monomer is provided that facilitates separation of an aqueous layer catalyst from a reaction solution and has satisfactory hydrogen peroxide efficiency by reacting an aqueous hydrogen peroxide solution with a polyolefin without using an organic solvent and under mild conditions. The process in the present invention is a process for producing a corresponding epoxy compound by reacting an organic compound having a carbon-carbon double bond with hydrogen peroxide present in an aqueous hydrogen peroxide solution to epoxidate the double bond, wherein a tungsten compound and tertiary amine are used as reaction catalysts. | 01-13-2011 |
20110065939 | METHOD FOR THE SEPARATION OF ACETONITRILE FROM WATER - A method for separating acetonitrile from water, comprising (i) providing a stream S1 containing at least 95 wt.-%, based on the total weight of S1, acetonitrile and water, wherein the weight ratio of acetonitrile:water is greater than 1; (ii) adding a stream P, comprising at least 95 wt.-% C3, based on the total weight of stream P, to S1 to obtain a mixed stream S2, C3 being propene optionally admixed with propane with a minimum weight ratio of propene:propane of 7:3; (iii) subjecting S2 to a temperature of 92° C. at most and a pressure of at least 10 bar, obtaining a first liquid phase L1 essentially consisting of C3, acetonitrile, and water, and a second liquid phase L2 essentially consisting of water and acetonitrile wherein the weight ratio of acetonitrile:water in L2 is less than 1; (iv) separating L1 from L2. | 03-17-2011 |
20110137054 | PROCESS FOR THE MANUFACTURE OF A 1,2-EPOXIDE - The invention relates to a process for the manufacture of a 1,2-epoxide by catalytic oxidation of a terminal olefin with hydrogen peroxide wherein the catalytic oxidation is performed in a biphasic system comprising an organic phase and an aqueous reaction medium, wherein a water-soluble manganese complex is used as oxidation catalyst, wherein a terminal olefin is used with a solubility at 20° C. of at least 0.01 to 100 g in 1 liter water, and wherein the molar ratio of terminal olefin to hydrogen peroxide is in the range of from 1:0.1 to 1:2. | 06-09-2011 |
20110137055 | PROCESS FOR THE MANUFACTURE OF EPICHLOROHYDRIN - The invention relates to a process for the manufacture of epichlorohydrin (“ECH”)
| 06-09-2011 |
20110190518 | Propylene oxide process - A process for producing propylene oxide from propylene is disclosed. The process comprises reacting propylene and an oxidant selected from the group consisting of hydrogen peroxide and oxygen in a slurry comprising a catalyst and a solvent having a boiling point of 110° C. or lower to produce a reaction mixture. The reaction mixture including the catalyst is distilled to produce a vapor stream comprising propylene, propylene oxide, and at least a portion of the solvent, and a slurry stream comprising the solvent and the catalyst. At least a portion of the slurry stream is recycled to the reaction step. | 08-04-2011 |
20110237810 | METHOD FOR PRODUCING TITANOSILICATE - The present invention relates to a method for producing a Ti-MWW precursor comprising: a first step of heating a mixture to prepare a solid, said mixture comprising a structure-directing agent, a compound containing a Group 13 element of the periodic table, a titanium-containing compound (1), a silicon-containing compound and water; and a second step of contacting the solid with a titanium-containing compound (2) and an inorganic acid. | 09-29-2011 |
20110251412 | PROCESS FOR PREPARING DIVINYLARENE DIOXIDES - A process for preparing a divinylarene dioxide comprising reacting a divinylarene, such as divinylbenzene, with hydrogen peroxide in the presence of a solvent and in the presence of a catalyst to from a divinylarene dioxide; wherein the hydrogen peroxide is present in the reaction mixture in an excess or an equivalent mole ratio per mole of divinylarene. | 10-13-2011 |
20110263882 | METHOD OF PRODUCING EPOXY COMPOUNDS - Provided is a method of efficiently producing an epoxy compound from an allyl ether having an aromatic ring under mild conditions by using hydrogen peroxide as an oxidizing agent without using an organic solvent. The method of producing an epoxy compound comprises reacting an allyl ether having an aromatic ring with hydrogen peroxide to epoxidize a carbon-carbon double bond of an allyl group to thereby produce a corresponding epoxy compound having an aromatic ring, wherein water only is used as a solvent without using an organic solvent, and a tungsten compound, and a tertiary amine and/or a quaternary ammonium salt, are used as a reaction catalyst. | 10-27-2011 |
20110282082 | METHOD FOR PRODUCING OXIDIZED COMPOUND - A method for producing an oxidized compound according to the present invention comprises reacting an organic compound with an oxidizing agent in the presence of titanosilicate (I) or a silylated form thereof, the titanosilicate (I) being obtained by contacting titanosilicate (II) with a structure-directing agent, and the titanosilicate (II) having an X-ray diffraction pattern reproduced in the form of interplanar spacings d of
| 11-17-2011 |
20110313179 | METHOD FOR PRODUCING OLEFIN OXIDE - The invention provides a method for producing an olefin oxide which comprises reacting hydrogen peroxide and an olefin in a solvent containing water, a nitrile compound and a cyclic secondary amine compound, in the presence of a titanosilicate having a pore composed of a 12- or more-membered oxygen ring. | 12-22-2011 |
20120065413 | PROCESS FOR PRODUCING PROPYLENE OXIDE - A process for producing propylene oxide comprising reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (G1) comprising propylene oxide, unreacted propene, and oxygen; separating propylene oxide from mixture (G1) to give a mixture (GII) comprising propene and oxygen; and adding hydrogen to mixture (GII) and reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising copper in elemental and/or oxidic form on a support, wherein copper is present on the support in an amount of 30 to 80 wt.-% based on the whole catalyst and calculated as CuO. | 03-15-2012 |
20120130096 | PROCESS FOR PRODUCING PROPYLENE OXIDE - A multiple liquid phase composition and process for preparing propylene oxide including a reaction mixture of: (a) propylene, (b) at least one peroxide compound, (c) at least one catalyst, such as a titanium silicalite-1 (TS-I) catalyst, and (d) and a predetermined amount of a solvent mixture; wherein the solvent mixture comprises at least (i) at least one alcohol, such as methanol, 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 propylene oxide; and wherein the resulting propylene oxide product partitions into a high affinity solvent during the reaction. The process of the present invention advantageously produces a waste stream with little or no significant amount of sodium chloride (NaCl). | 05-24-2012 |
20120142950 | PROCESS FOR THE PRODUCTION OF PROPYLENE OXIDE - A continuous process for the production of propylene oxide comprising reacting propene with hydrogen peroxide in methanolic solution in the presence of a titanium silicalite-1 catalyst to obtain propylene oxide, wherein a reaction feed comprising propene, methanol and hydrogen peroxide is introduced into a reactor, said reaction feed containing potassium cations and phosphorus in the form of anions of at least one phosphorus oxyacid. | 06-07-2012 |
20120203015 | PROCESS AND APPARATUS FOR PREPARING ALKYLENE OXIDES AND ALKYLENE GLYCOLS - An integrated process for preparing alkylene oxides and alkylene glycols is described. For this purpose, an alkylene oxide plant and an alkylene glycol plant are combined with one another and the water originating from the alkylene oxide plant and also other constituents of the reaction mixture are introduced into the alkylene glycol plant. In this way, alkylene glycols which have been produced in the alkylene oxide plant can be recovered as materials of value and the water circulation into the alkylene glycol plant can be eliminated or drastically reduced. In addition, the energy-intensive treatment of the process water from the alkylene oxide plant can be dispensed with. The integration of the two processes leads overall to better energy efficiency and conservation of resources in the work-up of residues from the process. | 08-09-2012 |
20120226056 | EPOXIDIZING PROPYLENE - The present invention provides one or more embodiments of a process for the epoxidation of propylene. For the embodiments, the process includes reacting 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. | 09-06-2012 |
20120289722 | PROCESS FOR THE MANUFACTURE OF PROPYLENE OXIDE - A process for the manufacture of propylene oxide (“PO”) by catalytic oxidation of propylene with an oxidant wherein the catalytic oxidation is performed in an aqueous reaction medium, comprising water with less than 10% by volume of cosolvents, wherein a water-soluble manganese complex is used as oxidation catalyst, | 11-15-2012 |
20120302775 | PROCESS FOR PRODUCING EPOXY COMPOUNDS - To provide an efficient method of producing an epoxy compound comprising reacting hydrogen peroxide and acetonitrile with the carbon-carbon double bond of an organic compound having a carbon-carbon double bond. A method of producing an epoxy compound comprising epoxidizing the carbon-carbon double bond of an organic compound having a carbon-carbon double bond in the presence of acetonitrile by using hydrogen peroxide as an oxidizing agent, wherein the reaction proceeds while controlling the acetonitrile concentration in the reaction system in the range of 0.6-5 mol/L by using a solvent containing an alcohol. | 11-29-2012 |
20120330042 | EPOXIDATION PROCESS - Processes and compositions are provided for epoxidizing an olefinically unsaturated compound. In one embodiment, a process is provided for reacting an olefinically unsaturated compound with an oxidant in the presence of a catalyst at acidic conditions, wherein the catalyst is activated prior to the reaction at a pH that is higher than the pH during the reaction. | 12-27-2012 |
20130006001 | MANUFACTURE OF AN EPOXYETHYL CARBOXYLATE OR GLYCIDYL CARBOXYLATE - The invention relates to a process for the manufacture of an epoxyethyl carboxylate or glycidyl carboxylate, including reacting a vinyl carboxylate or an allyl carboxylate using an oxidant and a water-soluble manganese complex in an aqueous reaction medium, and the water-soluble manganese complex comprises an oxidation catalyst, characterized in that the water-soluble manganese complex is a mononuclear species of the general formula (I) [LMnX | 01-03-2013 |
20130023680 | PROCESS FOR THE MANUFACTURE OF A 1,2-EPOXIDE AND A DEVICE FOR CARRYING OUT SAID PROCESS - Apparatus and processes are provided for forming epoxide compounds. In one embodiment, a process for the manufacture of an epoxide is provided including adding an oxidant, a water-soluble manganese complex and a terminal olefin to form a multiphasic reaction mixture, reacting the terminal olefin with the oxidant in the multiphasic reaction mixture having at least one organic phase in the presence of the water-soluble manganese complex, separating the reaction mixture into the at least one organic phase and an aqueous phase, and reusing at least part of the aqueous phase. The invention is also related to a device for performing the above process. | 01-24-2013 |
20130116455 | METHOD FOR PRODUCING EPOXY COMPOUND - Provided is a safe and simple method for producing an epoxy compound, wherein a compound with a carbon-carbon double bond is epoxidized by using hydrogen peroxide as an oxidizing agent in the presence of acetonitrile, wherein there is no need for concentration of a reaction mixture that contains residual hydrogen peroxide. A method for producing an epoxy compound wherein a compound with a carbon-carbon double bond is epoxidized by using hydrogen peroxide as an oxidizing agent, in the presence of acetonitrile, comprises a first step of adding water and an organic solvent that is incompatible with water and does not dissolve an acetamide by-product of the epoxidation reaction to a reaction mixture, upon completion of the epoxidation reaction, to dissolve the acetamide in the water, a second step of separating an organic layer and an aqueous layer, and a third step of subjecting the organic layer to reduction treatment, and then rinsing and concentrating it to provide an epoxy compound. | 05-09-2013 |
20130144075 | PROCESS FOR REGENERATION OF TITANO SILICATE CATALYST - Titanosilicate catalyst is used in the oxidation reactions such as allylchloride epoxidation, phenol hydroxylation, Cyclohexanone ammoximation. During the reaction the catalyst is deactivated which further decrease in the efficiency of the oxidation reactions. The present invention provides a method for an efficient regeneration of catalyst titanosilicate catalyst at low temperature below 100° C. using a gaseous mixture containing ozone, without isolating the catalyst from the reactor system. | 06-06-2013 |
20130197246 | PROCESS FOR PREPARING EPOXYCARBOXYLIC ESTERS - Process for preparing epoxides of the formula I | 08-01-2013 |
20130253208 | CATALYST, PREPARATION METHOD THEREFOR, AND A METHOD FOR EPOXIDATING OLEFIN - The present invention provides a catalyst and the preparation process thereof and a process of epoxidising olefin using the catalyst. The catalyst contains a binder and a titanium silicate, the binder being an amorphous silica, the titanium silicate having a MFI structure, and the crystal grain of the titanium silicate having a hollow structure, with a radial length of 5-300 nm for the cavity portion of the hollow structure, wherein the adsorption capacity of benzene measured for the titanium silicate under the conditions of 25 degrees C., P/P | 09-26-2013 |
20130303793 | Process for the manufacture of 1,2-epoxy-3-chloropropane - Process for the manufacture of 1,2-epoxy-3-chloropropane by reaction between allyl chloride and hydrogen peroxide in the presence of a solid catalyst and in the possible presence of at least one solvent in an epoxidation medium comprising at least two liquid phases under the conditions of reaction, wherein the catalyst exhibits an external surface to volume ratio lower than to 2.4 10 | 11-14-2013 |
20130310583 | SEPARATING PHASES OF A MIXTURE - Embodiments of the present disclosure include a process for separating phases of a mixture including a liquid aqueous phase, a liquid organic phase, and a solid phase and extracting at least an oxirane from the liquid aqueous phase with an extraction solvent. | 11-21-2013 |
20140073806 | METHOD FOR PRODUCING EPOXY COMPOUND - To provide a method for producing an epoxy compound having fewer residual quaternary salt compound by removing the quaternary salt compound from an organic solution containing an epoxy compound and the quaternary salt compound. | 03-13-2014 |
20140171667 | 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. | 06-19-2014 |
20140179938 | METHOD FOR PREPARING EPOXIDE - A method for producing an epoxide is disclosed. The method includes performing a reaction of an olefin compound and an oxidant by using a titanium-silicon molecular sieve as a catalyst, in the presence of a silicon oxide containing an alkaline earth metal as a coagent. The selectivity and yield of epoxide are increased by using a silicon oxide containing an alkaline metal as a coagent. | 06-26-2014 |
20140256968 | PROCESS FOR THE MANUFACTURE OF EPICHLOROHYDRIN - The invention relates to a process for the manufacture of epichlorohydrin (“ECH”)
| 09-11-2014 |
20140256969 | PROCESS FOR PREPARING A DIVINYLARENE DIOXIDE - A process for preparing a divinylarene dioxide including reacting (a) at least one divinylarene, (b) hydrogen peroxide, (c) at least one iron-containing catalyst, and (d) an excess of amine hydrogen halide, under conditions to form a divinylarene dioxide. | 09-11-2014 |
20140296545 | PROCESS FOR THE MANUFACTURE OF A 1,2-EPOXIDE - The invention relates to a process for the manufacture of a 1,2-epoxide by catalytic oxidation of a terminal olefin with hydrogen peroxide wherein the catalytic oxidation is performed in a biphasic system comprising an organic phase and an aqueous reaction medium, wherein a water-soluble manganese complex is used as oxidation catalyst, wherein a terminal olefin is used with a solubility at 20° C. of at least 0.01 to 100 g in 1 liter water, and wherein the molar ratio of terminal olefin to hydrogen peroxide is in the range of from 1:0.1 to 1:2. | 10-02-2014 |
20160016158 | Catalyst Composition and Process for Preparing Olefin Oxides - A catalyst composition comprising (a) a manganese-containing compound and (b) a carboxylic acid functionalized metal organic framework (MOF) compound; and a process for preparing an olefin oxide compound product including reacting (a) at least one olefin compound with (b) at least one oxidant in the presence of (c) the above catalyst composition. | 01-21-2016 |
20160083360 | PROCESS FOR THE EPOXIDATION OF OLEFINS - The subject invention is related to a process for the epoxidation of olefin with peroxide, comprising reacting peroxide with olefin in the presence a solvent, wherein the solvent has Hansen Solubility Parameters (HSPs) of δ | 03-24-2016 |
20160115140 | PART-STREAM DISTILLATION - A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log K | 04-28-2016 |
20160130242 | PROCESS AND APPARATUS FOR PRODUCING DIVINYLARENE DIOXIDE - A process for preparing a divinylarene dioxide including the steps of: (a) feeding one or more feed streams of the following reactants into a reactor system: (i) at least one divinylarene, (ii) at least one oxidizing agent, and (iii) at least one solvent to form a reaction mixture in the reactor system; (b) continuously reacting together the one or more feed streams of the reactants of step (a) in the reaction mixture; and (c) controlling heat removal of the reaction mixture as the reactants of step (b) react together; wherein the heat removal is sufficient to provide a residence time of the reactants in the reaction mixture of less than about 180 minutes residence time of the reactants in the reaction step (b); and an apparatus for preparing a divinylarene dioxide. | 05-12-2016 |
20160176834 | PROCESS FOR PREPARING PROPYLENE OXIDE | 06-23-2016 |
20160176835 | PROCESS FOR PREPARING PROPYLENE OXIDE | 06-23-2016 |
20160185741 | PROCESS FOR THE PREPARATION OF PROPYLENE OXIDE - A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream. | 06-30-2016 |
20160251222 | Process for manufacturing a purified aqueous hydrogen peroxide solution | 09-01-2016 |
20160251327 | PROCESS FOR REMOVING IRON IONS FROM AN ORGANIC STREAM | 09-01-2016 |