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568 - Organic compounds -- part of the class 532-570 series



568579000 - Ethers

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Class / Patent application numberDescriptionNumber of patent applications / Date published
568672000 Polyoxy 46
568698000 Preparing by dehydration of an organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal) 27
568681000 Halogen containing 20
568697000 Preparing by reacting an olefin and an organic hydroxy containing compound (H of -OH may be replaced by a Group IA or IIA light metal) 12
568687000 Carbon to carbon unsaturation containing 6
568699000 Purification or recovery 3
20090275786PROCESS FOR PRODUCING GLYCERYL ETHER - A method for producing a glyceryl ether, including the steps of feeding a compound represented by the general formula (I):11-05-2009
20110040129PROCESS FOR THE PRODUCTION OF DIMETHYL ETHER - A process for the production of dimethyl ether from a methanol reactor effluent is disclosed. The process may include: contacting an aqueous extractant comprising water and an effluent from a methanol synthesis reactor comprising methanol and one or more of methane, water, carbon monoxide, carbon dioxide, hydrogen, and nitrogen. At least a portion of the methanol partitions into the aqueous extractant; recovering an extract fraction comprising the aqueous extractant and methanol. The extract fraction is fed to a catalytic distillation reactor system for concurrently: contacting the methanol with catalyst in a reaction zone thereby catalytically reacting at least a portion of the methanol to form dimethyl ether and water; and fractionating the resulting dimethyl ether and the water to recover a first overheads fraction comprising dimethyl ether and a first bottoms fraction comprising water.02-17-2011
20120289750Process and Apparatus for Coupling Separation and Purification of Ethyl Tert-Butyl Ether - A process and device of coupling separation and purification to produce ethyl tert-butyl ether (ETBE) is provided, wherein ethanol containing 1 wt % to 15 wt % of water, and a mixture containing ETBE and ethanol are fed into the distillation-extraction coupling zone for separation and purification. Said distillation-extraction coupling zone is composed of a distillation column and an extraction column. Said process and device can achieve the cogeneration of ETBE and ethanol, and possesses high commercial values.11-15-2012
568694000 Preparing by hydration of an olefin 1
20110137086PROCESS FOR TELOMERIZATION OF BUTADIENE - In an improved process for telomerizing butadiene, contact butadiene and an organic hydroxy compound represented by formula ROH (I), wherein R is a substituted or unsubstituted C06-09-2011
20100041923Method for Producing Alkylene Oxide Addition Products - The invention relates to a method for producing alkylene oxide addition products by reaction of compounds having a nucleophilic center with alkylene oxides in a reactor having a large inner surface. The invention is characterized in that the reaction is carried out exclusively in the liquid phase.02-18-2010
20090270655Conversion of Alkylhalides Into Alcohol Alkoxylates - A process for converting alkyl halides to alkyl alcohol alkoxylates is described. This is a direct alkoxylation because the alkyl alcohol alkoxylates are made without going through an alkyl alcohol intermediate. The process comprises direct alkoxylation coupling of alkyl halides with a nucleophilic material in the presence of a homogeneous catalyst system to produce alkyl alcohol alkoxylates, wherein the homogeneous catalyst system comprises at least one metal or metal compound which has the ability to form metal-halogen bonds. A process for converting alkanes (paraffins) to alkyl alcohol alkoxylates is also described. This method comprises a) halogenation of at least one alkane to produce at least one alkyl halide; and b) direct alkoxylation coupling of at least a portion of the alkyl halide with a nucleophilic material in the presence of a homogeneous catalyst system to produce alkyl alcohol alkoxylates, wherein the homogeneous catalyst system comprises at least one metal or metal compound which has the ability to form metal-halogen bonds.10-29-2009
20100010271Slurry Catalyst and the Preparation Thereof - The present invention provides a slurry catalyst and a method for preparing the same, and belongs to the technical field of preparing catalyst. Particularly, the present invention provides a slurry catalyst directly used in a slurry bed reactor for synthesizing methanol and dimethyl ether and a method for preparing the same, which uses the complete liquid phase preparation from solution to slurry without the conventional slurry-producing process of firstly forming a solid catalyst and dispersing it into an inert medium after crushing and milling. This catalyst mainly comprises Cu, Zn, Al and Zr, wherein atomic ratios of each of components are Cu/Zn/(Al+Zr)=1/0.1-5/0.15-15 and Zr/Al=1:1.0-1:30, and one or two selected from the group consisting of lanthanide metals, Mn, Mo, Si, V, W, Cr, Mg, Ni, K, Pd, Rh, Ru, Re, Pt and Sr is used a promoter. The catalyst prepared in the present invention has the advantages of good stability, high selectivity of alcohol and ether, good rheological behavior and strong wear resistance.01-14-2010
20090036716Process for making dibutyl ethers from aqueous 1-butanol - The present invention relates to a catalytic process for making dibutyl ethers using a reactant comprising 1-butanol and water. The dibutyl ethers so produced are useful in transportation fuels.02-05-2009
20090030240CONVERSION OF CARBON DIOXIDE TO DIMETHYL ETHER USING BI-REFORMING OF METHANE OR NATURAL GAS - The invention provides for a method of forming dimethyl ether by bimolecular dehydration of methanol produced from a mixture of hydrogen and carbon dioxide obtained by reforming of methane, water and carbon dioxide in a ratio of about 3:2:1. Subsequent use of water produced in the dehydration of methanol in the bi-reforming process leads to an overall ratio of carbon dioxide to methane of about 1:3 to produce dimethyl ether.01-29-2009
20110301386Process for Increasing the Carbon Monoxide Content of a Syngas Mixture - The invention relates to a process for increasing the carbon monoxide content of a feed gas mixture comprising carbon dioxide, hydrogen and carbon monoxide via a catalytic reversed water gas shift reaction, comprising the steps of (1) heating the feed gas mixture having an initial feed temperature of at most 350° C. in a first zone to a temperature within a reaction temperature range in the presence of a first catalyst; and (2) contacting the heated feed gas in a second zone within the reaction temperature range with a second catalyst. This process shows relatively high conversion of carbon dioxide, and virtually no methane or coke is being formed, allowing stable operation.12-08-2011
20090030239Process for making butenes from aqueous isobutanol - The present invention relates to a catalytic process for making butenes using a reactant comprising isobutanol and water. The butenes so produced may be converted to isoalkanes, alkyl-substituted aromatics, isooctanes, isooctanols, and octyl ethers, which are useful in transportation fuels.01-29-2009
20090326281Catalytic system and process for direct synthesis of dimethyl ether from synthesis gas - A mixed-bed catalytic system and its activation for direct synthesis of dimethyl ether from synthesis gas are described, comprising a catalyst for methanol synthesis and the zeolite ferrierite in its acid form as the methanol dehydrating component, the two being mixed physically in the form of powder of defined granulometry or as pellets. Another object of the present invention is a process for production of the acid form of the zeolite ferrierite. Another object of the present invention is a process for direct synthesis of dimethyl ether from a synthesis gas, using the catalytic system of the present invention.12-31-2009
20090240086Preparation of glycerol tert-butyl ethers - A process for making glycerol di-tert-butyl ethers is disclosed. In one aspect of the invention, glycerol and isobutylene react in the presence of a β-zeolite having a silicon to aluminum ratio greater than 150. In another aspect, the etherification is performed in the presence of a β-zeolite and added tert-butyl alcohol. Each process selectively provides glycerol di-tert-butyl ethers while reducing the generation of isobutylene dimers and trimers. Utilizing both aspects of the inventive process simultaneously affords a diether product mixture containing less than 5 wt. % of isobutylene oligomers.09-24-2009
20100261937RENDERING PETROLEUM OIL AS AN ENVIRONMENTALLY CARBON DIOXIDE NEUTRAL SOURCE MATERIAL FOR FUELS, DERIVED PRODUCTS AND AS A REGENERATIVE CARBON SOURCE - The invention provides a method for rendering petroleum oil as an essentially environmentally carbon dioxide-neutral fuel and source material. Carbon dioxide produced from petroleum oil combustion is captured, purified, combined with steam and light hydrocarbon fractions, or with hydrogen, and reacted under reaction conditions sufficient to form methanol and/or dimethyl ether, which can be used as fuel or feedstock for derived synthetic hydrocarbons and products.10-14-2010
20100179354NOVEL ALKOXY-ETHERS AND ALKOXYLATES THEREOF - Novel 1,3-dialkyloxy-2-propanol and alkoxylates thereof may be prepared in good yield by a convenient process comprising adding epichlorohydrin to a stoichiometric excess of alcohol, wherein the ratio of alcohol:epichlorohydrin is at least about 3:1, preferably in the presence of a Group 1A metal hydroxide and a phase transfer catalyst. The result shows excellent selectivity of to the 1,3-substitution positions, and the alkyl chain may be saturated or unsaturated and may contain one or more heteroatoms. The alkoxylates may include repeating alkoxy units in the 2-position. The compositions are useful as surfactants, diluents, and the like.07-15-2010
20100197974PROCESSES FOR MAKING DIALKYL ETHERS FROM ALCOHOLS - Processes for the preparation of dialkyl ethers from C08-05-2010
20090069607METHOD FOR THE PRODUCTION OF DIMETHYL ETHER - A process for the production of dialkyl ether, the process including: feeding a stream comprising an alkyl alcohol to a distillation column reactor system; concurrently in the distillation column reactor system: i) contacting the alkyl alcohol with a catalytic distillation structure in a distillation reaction zone thereby catalytically reacting at least a portion of the alkyl alcohol to form a corresponding dialkyl ether and water; and ii) fractionating the resulting dialkyl ether from the water; operating the distillation column reactor system to obtain substantially complete conversion of the alkyl alcohol to form the corresponding dialkyl ether and water; recovering the dialkyl ether from the distillation column reactor as an overheads fraction; recovering the water from the distillation column reactor as a bottoms fraction.03-12-2009
20110034739CATALYST AND PROCESS FOR PREPARING SATURATED ETHERS BY HYDROGENATING UNSATURATED ETHERS - The invention relates to a supported catalyst based on palladium-γ-alumina, which is characterized in that the catalyst support material contains 1 to 1000 ppm by mass of sodium oxide and has a specific pore volume of 0.4 to 0.9 ml/g and a BET surface area of 150 to 350 m02-10-2011
20090048468Method for the production of dimethyl ether - Provided is a process for the production of dimethyl ether. The process improves the effectiveness of the production of dimethyl ether. Especially, the process can be combined with processes for the production of methanol.02-19-2009
20100056831ENERGY-EFFECTIVE PROCESS FOR CO-PRODUCING ETHYLENE AND DIMETHYL ETHER - The present invention discloses a process for the co-production of ethylene and dimethyl ether, comprising (i) providing a feedstock comprising ethanol and methanol, with a weight ratio of methanol to ethanol being in a range of from 1:10 to 10:1; (ii) feeding the feedstock into a reaction zone containing a solid catalyst to give an effluent, wherein a reaction temperature is in a range of from 200 to 480° C., a reaction pressure is in a range of from 0 to 2 MPa (gauge), and a weight hourly space velocity of the feedstock is in a range of from 0.1 to 10 h03-04-2010
20110054222Heterocyclic Amine Catalyst Compositions for the Alkoxylation of Alcohols to Glycol Ethers - Glycol ethers are made by a process in which an alcohol, an alkylene oxide and a catalytic amount of an aromatic, heterocyclic amine catalyst are contacted under reactive conditions. Representative catalysis include substituted and unsubstituted pyridines and imidazoles. The process uses known oxides and alcohols, and produces more mono- and di- adduct products than does a corresponding process using a caustic catalyst. Moreover, the process can be conducted at a lower reaction temperature than a corresponding process using a caustic catalyst without sacrificing oxide conversion rates yet producing fewer carfoonyl impurities.03-03-2011
20100267994PROCESSES FOR PREPARING POLYTRIMETHYLENE GLYCOL USING ION EXCHANGE RESINS - Processes for preparing polytrimethylene ether glycol or copolymers thereof using an acid polycondensation catalyst and ion exchange resins are provided.10-21-2010
20100179353Modified Liquid Epoxy Resin as Well as Epoxy Resin Composition Using the Same and Cured Product Thereof - This invention provides a modified liquid epoxy resin having a low viscosity and a high performance, which is obtained by reacting a mixture of a bisphenol and a phenol aralkyl resin with an epiholohydrin. The bisphenol is preferable to be bisphenol F and is further preferable to have a bifunctional form purity as detected by gel permeation chromatography at UV 254 nm of not less than 95% by area in view of the fluidity. Moreover, the mixture of bisphenol and the phenol aralkyl resin is preferable to have a ratio of the phenol aralkyl resin of 10-70% by mass.07-15-2010
20100174120PROCESSES FOR MAKING DIBUTYL ETHERS FROM ISOBUTANOL - Processes for preparing dibutyl ethers from isobutanol using an ionic liquid.07-08-2010
20110237839MODULAR POWER PLANT UNCONNECTED TO THE GRID - The invention relates to a grid-connected power plant, having the following systems which are adjusted in their capacitance to each other: a) a wind power plant, water power plant, solar-thermal system and/or photovoltaic system for the production of electrical energy for operating the systems b) through f); b) a CO2 absorption system for the absorption of atmospheric CO2; c) a CO2 desorption system for the desorption of the CO2 gained in b); d) an electrochemical or solar-thermal H2 synthesis system for the operating system e); e) a synthesis system selected from the group catalytic methanol synthesis, catalytic DME synthesis, catalytic methane synthesis; f) a storage system selected from the group methanol storage system, DME storage system, methane storage system. The invention also relates to the use of such a power plant and methods for the operation of such a power plant.09-29-2011
20120101312METHOD AND SYSTEM FOR PRODUCING METHANOL AND DIMETHYL ETHER - In the production of purified methanol and/or dimethyl ether from crude methanol, the crude methanol is processed in at least one prepurification stage, a first partial stream of the prepurified methanol is supplied to a final methanol purification and a second partial stream of the prepurified methanol is supplied to a reactor and at least partly converted to dimethyl ether. The dimethyl ether recovered is purified in at least one purification stage, wherein non-reacted methanol is withdrawn from the dimethyl ether purification stage and at least partly supplied to the final methanol purification. In this way, both purified methanol and dimethyl ether can be produced in parallel, wherein the quantities of both products obtained are flexibly adjustable.04-26-2012
20120101311Using Methanesulfonyl Halide as a Key Intermediate for Methane Gas to Liquid Conversion and Raw Commodity Chemical Generation - Processes for converting a methane or a methane containing natural gas to a monohalogenated methane and other downstream basic commodity chemicals going through methanesulfonyl halide as a key intermediate, whereby following its formation, the methanesulfonyl halide is allowed to decompose under a substantially anhydrous condition, preferably in the presence of a catalyst complex, and whereby in addition to the monohalogenated halide, a hydrogen halide and a sulfur dioxide are also formed in the overall conversion, both of which may be recycled back to the beginning of the processes. Additionally, compositions utilizing such a key intermediate for the same purposes are also disclosed.04-26-2012
20080234523Process for making isooctenes from aqueous 2-butanol - The present invention relates to a catalytic process for making isooctenes using a reactant comprising 2-butanol and water. The isooctenes so produced are useful for the production of fuel additives.09-25-2008
20080228011Methods for Producing Triol Ethers by Reactive Distillation - This invention relates to methods for preparing alkyl ethers from glycerin by reactive distillation. For example, the present invention provides a method for the preparation of mono-, di- and tri-ethers of glycerin, either in the presence or absence of fatty acids, contaminants by reactive distillation using solid catalysts. Specific desirable final products according to the reactive distillation method provided herein include glycerin ethers and fatty acid esters of C09-18-2008
20090259076PROCESS FOR CONVERTING A CARBONACEOUS MATERIAL TO METHANE, METHANOL AND/OR DIMETHYL ETHER USING MICROCHANNEL PROCESS TECHNOLOGY - This invention relates to a process for converting a carbonaceous material to a desired product comprising methane, methanol and/or dimethyl ether, the process comprising: gasifying the carbonaceous material at a temperature in excess of about 700° C. to form synthesis gas; and flowing the synthesis gas through two or more reaction zones in a microchannel reactor to convert the synthesis gas to the desired product.10-15-2009
20120029245CATALYTIC REACTIONS USING IONIC LIQUIDS - A method of catalytically forming reaction products can include providing an ionic liquid phase. The ionic liquid phase can include a catalyst and an ionic liquid. At least one reactant can be reacted (02-02-2012

Patent applications in class Acyclic

Patent applications in all subclasses Acyclic