Patents
Patents for C07D 301 - Preparation of oxiranes (10,136)
05/2005
05/05/2005US20050092593 Extractive distillation using hydrocarbon; controlling propylene glycol content; reduced cost; industrial scale
05/04/2005EP1527061A1 Method for the continuous intermediate separation of the solvent used in the oxirane synthesis with no coupling product
05/04/2005EP1527060A1 Method for the continuous purification by distillation of 1,2-propylene glycol that accumulates during the synthesis of propylene oxide without coupling products
05/04/2005EP1527059A1 Method for producing propenyl oxide using a secondary reactor comprising several feed and/or outlet points
05/04/2005EP1527058A1 Method for the continuous intermediate separation of an oxirane produced by the oxirane synthesis with no coupling product by means of a partition-wall column
05/04/2005EP1527057A1 Method for the continuous production of propylene glycol
05/04/2005EP1527056A1 Method for the continuous purification by distillation of methanol, used as a solvent in the synthesis of propylene oxide without coupling products, with the simultaneous isolation of the methoxy propanols
05/04/2005EP1527055A1 Method for the continuous purification by distillation of the solvent methanol, used in the synthesis of propylene oxide
05/04/2005EP1526904A1 Method for continuously operated pure distillation of oxiranes, especially propylene oxide
05/04/2005EP1351947B1 Epoxidation catalyst and process for the production thereof
05/04/2005CN1612871A Processes and intermediates for preparing benzyl epoxides
05/04/2005CN1612870A Process for production of propylene oxide
05/03/2005US6888013 Preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide; contacting with an olefin and a buffering agent, in the presence of an epoxidation catalyst suspended in the reaction solvent, to obtain a reaction mixture; treating
05/03/2005US6887991 Converting a 7-cyano substituted steroid to the corresponding 7- carboxylic acid substituted steroid, and thereafter converting the 7-carboxylic acid substituted steroid to the corresponding 5,7-lactone substituted steroid
05/03/2005US6887823 Mixing and stirring a silica source, a titanium source, and as the template, a quaternary ammonium compound, drying the solid; removing solvent extraction
05/03/2005US6887814 Zeolite crystals
04/2005
04/28/2005WO2005038036A1 Method for transforming epoxy carrier of trifluoromethyl groups
04/28/2005WO2005037811A1 A method for the production of chiral substituted epoxides
04/27/2005EP1525161A1 Method for producing a solid containing zeolites
04/27/2005CN1198810C Method for producing alkylene oxide
04/27/2005CN1198684C Process for epoxidation of olefins using gold containing catalysts and used catalyst composition
04/27/2005CN1198683C Heterogeneous catalyst regeneration
04/26/2005US6884898 Propylene oxide process
04/26/2005US6884892 Production methods of epoxytriazole derivative and intermediate therefor
04/26/2005US6884750 Chiral salen catalyst and methods for the preparation of chiral compounds from racemic epoxides by using new catalyst
04/26/2005US6884743 Crystallizing a zeolite solids comprising silica and titania, improving catalyst selectivity, for reacting propylene and hydrogen peroxide to propylene oxide
04/26/2005CA2131182C Method for making intermediates useful in synthesis of retroviral protease inhibitors
04/21/2005WO2005035513A1 A process for the production of alkylene oxide using a gas-phase promoter system
04/21/2005WO2005005402A3 Process for producing alkylene oxide
04/21/2005US20050085648 From liquid mixture containing cumene, cumyl alcohol, propylene oxide by distillation; epoxidation of propylene to propylene oxide using cumene hydroperoxide
04/21/2005US20050085647 Process for production of propyline oxide
04/21/2005US20050085646 Process for epoxidation and catalyst to be used therein
04/21/2005US20050084441 Carbon nanochips as catalyst supports for metals and metal oxides
04/21/2005US20050082159 Process for purification propylene oxide
04/21/2005CA2540563A1 A process for the production of alkylene oxide using a gas-phase promoter system
04/20/2005EP1474409B1 Epoxidation process
04/20/2005EP1458698B1 A process and systems for the epoxidation of an olefin
04/20/2005EP1317460A4 Compounds containing oxazolidinone moiety and uses thereof
04/19/2005US6881874 Process for the catalytic oxidation of hydrocarbons
04/19/2005US6881853 Peroxidation of propene using hydrogen peroxide in the presence of zeolites as catalysts, while separating and reusing unreacted propene; catalysis
04/19/2005US6881697 Process for producing titanium-containing silicon oxide catalyst, the catalyst, and process for producing oxirane compound with the catalyst
04/14/2005WO2005033070A2 Method for the production of bisepoxides and dithiols
04/14/2005WO2003101977A8 Epoxidation process using a supported niobium oxide catalyst
04/13/2005CN1196690C Process for producing oxirane compound
04/12/2005US6878836 Process for the epoxidation of propene
04/12/2005US6878835 Catalyst for asymmetric epoxidation of enones and process for producing optically active epoxide employing it
04/07/2005WO2005030745A1 Method for producing propyleneoxide
04/07/2005WO2005030744A1 Process for producing propylene oxide
04/07/2005WO2005030743A1 Process for producing propylene oxide
04/07/2005WO2005030742A1 Method for producing propyleneoxide
04/07/2005WO2005030741A1 Method for producing propyleneoxide
04/07/2005WO2005030684A1 PROCESS FOR PRODUCING α-METHYLSTYRENE
04/07/2005WO2005030683A1 Process for producing cumene and process for propylene oxide production including the production process
04/07/2005US20050075514 Process for the oxidation of organic substrates and a catalyst composition for carrying out the process
04/05/2005US6875875 Process for preparing glycidylphthalimide
03/2005
03/31/2005WO2005028461A1 Method of purifying propylene oxide
03/31/2005WO2005028460A1 Process for producing propylene oxide
03/31/2005WO2005028101A1 Process for production of titanium-containing silicon oxide catalysts, such catalysts, and process for production of oxiranes with the same
03/31/2005WO2005003109A3 Process for the preparation of n-glycidylamines
03/31/2005US20050070725 Process for the preparation of alkylene oxide
03/30/2005EP1517901A2 A method for the start-up of an epoxidation process and a process for the epoxidation of an olefin
03/30/2005EP1517751A2 A method for improving the selectivity of a catalyst and a process for the epoxidation of an olefin
03/30/2005EP1360181B1 Epoxidation catalyst and process
03/30/2005EP1299369B1 Method for producing oxirane
03/30/2005CN1602303A Organic chemical oxidation during hydrogen peroxide production
03/30/2005CN1194974C Method for preparing epoxy pinane using sodium percarbonate as reagent
03/30/2005CN1194973C Analogue reactor for olefin hydrocarbon oxidation reaction
03/29/2005US6872679 Heterogeneous catalyst regeneration
03/24/2005WO2004092148A3 Process for the production of an olefin oxide
03/24/2005US20050065378 Manganese(iv) complex salts and their use as oxidation catalysts
03/24/2005US20050065355 Process for epoxidation of a liquid olefinic organic compound using a supported nano-gold catalyst
03/23/2005CN1599732A A process and systems for the epoxidation of an olefin
03/23/2005CN1597675A Process for preparing acids via alpha-chloroepoxy esters
03/22/2005US6870061 Continuous process and system for production of glycidyl nitrate from glycerin, nitric acid and caustic and conversion of glycidyl nitrate to poly(glycidyl nitrate)
03/22/2005US6870060 Product recovery from supercritical mixtures
03/22/2005CA2166614C Epoxidation catalyst
03/17/2005WO2005023417A1 Modified alumina carriers and silver-based catalysts for the production of alkylene oxides
03/17/2005CA2538992A1 Improved alumina carriers and silver-based catalysts for the production of alkylene oxides
03/17/2005CA2538989A1 Modified alumina carriers and silver-based catalysts for the production of alkylene oxides
03/16/2005EP1514873A1 Process for oxidation of organic substrates and catalyst compositions for performing the same
03/16/2005EP1514844A1 Microporous crystalline zeolite material (zeolite itq-22), synthesis method thereof and use of same as a catalyst
03/16/2005EP1513823A1 Epoxidation process using catalysts containing metal organic framework
03/16/2005CN1596150A Catalyst containing microporous molecular sieve in mesoporous support and method for making same
03/15/2005US6867312 Two step reaction, oxygen and hydrogen are reacted to form hydrogen peroxide which is then reacted with propylene, using the same catalyst for each step
03/15/2005US6867311 Clean, high-yield preparation of S,S and R,S amino acid isosteres
03/10/2005WO2004076408A3 Process
03/10/2005US20050054865 Catalyst for epoxidation reactions
03/10/2005US20050054864 from the oxidation of at least one alkylanthrahydroquinone to produce hydrogen peroxide, without a subsequent washing, purification treatment or combination thereof; an olefin is reacted with hydrogen peroxide in the presence of catalyst
03/09/2005EP1511563A2 Supported silver catalyst and an epoxidation process using the catalyst
03/09/2005EP1232007B1 Process for the production of an oxide
03/09/2005CN1590380A Method for improving ethylene oxide output
03/09/2005CN1191884C High surface microporous active materials TIQ-6 and METIQ-6 in oxidation reactions
03/03/2005WO2005019143A1 Method and apparatus for synthesizing olefins, alcohols, ethers, and aldehydes
03/02/2005EP1509510A1 Epoxidation process using a supported niobium oxide catalyst
03/02/2005CN1589267A Production method of propylene oxide
03/02/2005CN1589266A Process and systems for the epoxidation of an olefin
03/02/2005CN1587262A High voltage discharge reactor and method for directly synthesizing epoxy propane from propene and oxygen
03/01/2005US6861540 Process for the epoxidation of cyclic alkenes
03/01/2005US6861383 Catalyst support material and use thereof
02/2005
02/24/2005WO2005016903A1 Process for the preparation of alkylene oxide
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