Patents
Patents for C07D 301 - Preparation of oxiranes (10,136)
05/2004
05/20/2004US20040096378 Upstream portion and/or downstream portion of the reactor tube contains a heat-exchanging rod-shaped insert having a length of 1-20% of the total length of the reactor tube.
05/19/2004EP1420014A1 Method for producing propylene oxide
05/19/2004EP1419146A1 Process for the epoxidation of olefins
05/19/2004EP1419145A2 Process for the epoxidation of olefins
05/19/2004EP1419128A1 Improved hydrolytic kinetic resolution of epoxides
05/19/2004EP1028805B1 Process for producing spherical catalyst particles, catalyst particles and their use in a chemical synthesis
05/19/2004DE10240129A1 Integriertes Verfahren zur Synthese von Propylenoxid An integrated process for the synthesis of propylene oxide
05/19/2004CN1150177C Method for producing ethylene oxide by driectyly oxidizing ethylene with air oxygne
05/19/2004CN1150144C CO2 removal from fluorocarbons by semipermeable membrane
05/18/2004US6736941 Distillation in presenc eof hydrocarbon
05/13/2004WO2004039790A1 Olefin oxide catalysts
05/13/2004WO2004039497A2 Silver-based olefin oxide catalysts
05/13/2004WO2004039496A1 A process for preparing an olefin oxide, a method of using the olefin oxide and a catalyst composition
05/13/2004US20040092757 Crystalline MWW-type titanosilicate catalyst for producing oxidized compound, production process for the catalyst, and process for producing oxidized compound by using the catalyst
05/13/2004DE10251325A1 Katalysator und Verfahren zur Oxidation von Kohlenwasserstoffen zu Epoxiden Catalyst and process for the oxidation of hydrocarbons to epoxides
05/13/2004CA2503954A1 A process for preparing an olefin oxide, a method of using the olefin oxide and a catalyst composition
05/12/2004EP1417193A1 Efficient process for the production of 10-dab iii by selective hydrazinolysis of various taxanes
05/12/2004EP1417192A1 Method for the production of propylene oxide
05/12/2004EP0859806B1 High softening point, low molecular weight epoxy resin
05/12/2004CN1496357A Preparation of oxirane compound
05/12/2004CN1496344A Method for recovering cumene
05/12/2004CN1149129C Method for regenerating a zeolitic catalyst
05/11/2004US6734315 Oxidation with hydrogen peroxide, acetaldehyde monoperacetate, or organic hydroperoxide; cyclization, etherification
05/11/2004US6734133 Surface-modified mixed oxides containing precious metal and titanium, for the selective oxidation of hydrocarbons
05/11/2004CA2206495C Silver catalyst preparation
05/06/2004WO2004037803A1 Method for the continuous production of epoxids from olefins and hydroperoxides on a suspended catalyst
05/06/2004WO2004037802A1 Returning an olefin which is not reacted during the oxidation of olefins
05/06/2004WO2004037390A1 Method for continuously returning an olefin which is not reacted with hydroperoxides during oxidation by olefins by means solvent washing
05/06/2004US20040087821 Subjecting 2,3-dimethyl-2,3-diphenylbutane, produced as a byproduct by the dimerization of cumene in preparing cumene hydroperoxide, to hydrogenolysis in the presence of a catalyst thereby to convert it into cumene
05/06/2004US20040087802 Process for preparing glycidylphthalimide
05/06/2004EP1414811A1 Method for producing and isolating alkene oxides from alkenes
05/06/2004EP1115713B1 Method for producing ethylene oxide by directly oxidizing ethylene with air or oxygen
05/06/2004EP1112260B1 Process for the production of low color 2,3-epoxypropyl trialkylammonium halide
05/06/2004EP1080084B1 Process for epoxidation of aryl allyl ethers
05/06/2004EP0767771B2 Chlorohydrin process
05/06/2004DE10249379A1 Verfahren zur kontinuierlichen Rückführung des bei der Oxidation von Olefinen mit Hydroperoxiden nicht umgesetzten Olefins mittels Lösungsmittelwäsche Process for the continuous recirculation of the unreacted in the oxidation of olefins with hydroperoxides using the olefin solvent washing
05/06/2004DE10249378A1 Verfahren zur kontinuierlichen Rückführung des bei der Oxidation von Olefinen mit Hydroperoxiden nicht umgesetzten Olefins mittels Verdichtung und Druckdestillation Process for the continuous recirculation of the unreacted in the oxidation of olefins with hydroperoxides using olefin compaction and pressure distillation
05/06/2004DE10249377A1 Verfahren zu kontinuierlichen Herstellung von Epoxiden aus Olefinen und Hydroperoxiden an einem suspendierten Katalysator A method for the continuous production of epoxides from olefins and hydroperoxides over a suspended catalyst
05/06/2004CA2503449A1 Process for the continuous recirculation of the olefin which has not been reacted in the oxidation of olefins by hydroperoxides, by means of compression and pressure distillation
05/06/2004CA2503218A1 Method for continuously returning an olefin which is not reacted with hydroperoxides during oxidation by olefins by means solvent washing
05/06/2004CA2502463A1 Process for the continuous preparation of epoxides from olefins and hydroperoxides over a suspended catalyst
05/05/2004CN1494538A Method for producing epoxide
05/05/2004CN1494537A Process for epoxidation of olefins
05/05/2004CN1494536A Process for epoxidation of olefins
05/05/2004CN1494535A Process for epoxidation of olefins
05/05/2004CN1494534A MEthod for producing epoxide
04/2004
04/29/2004WO2004035559A1 Epoxidation system with fixed bed reactors
04/29/2004WO2004035558A1 Process for preparation of alicyclic diepoxy compounds, curable epoxy resin compositions, epoxy resin compositions for the encapsulation of electronic components, stabilizers for electrical insulating oils, and casting epoxy resin compositions for electrical insulation
04/29/2004WO2004035557A1 Catalyst for oxidation of hydrocarbons to form epoxides
04/29/2004US20040082800 Method for regenerating solid catalyst
04/29/2004US20040082799 Reacting an electrophilic compound with organolithium compound
04/29/2004US20040082753 Purification of propylene oxide
04/29/2004CA2502509A1 Epoxidation system with fixed bed reactors
04/28/2004EP1412339A1 Method for producing propylene oxide
04/28/2004CN1492932A Stereoselective reduction of substituted oxo-butanes
04/28/2004CN1492780A Method for preparing titanium-containing silicon oxide catalyst
04/28/2004CN1147484C Process for the preparation of glycidylesters of branched carboxylic acids
04/27/2004US6727389 Cyclic organo-oxide storage vent scrubbing
04/22/2004US20040077889 Acid catalysts, cation exchangers
04/22/2004US20040077886 Mixing and stirring silica and titanium sources and a template of a quaternary ammonium ion; specific average pore diameter, distribution and pore volume per unit
04/22/2004DE10247784A1 Catalyst containing elemental or bound gold and molybdenum-VI, used for the epoxidation of olefins, especially of propene in presence of oxygen and hydrogen
04/22/2004DE10247496A1 Verwendung eines Absatzbeschleunigers bei der Epoxidierung Use of a paragraph accelerator in the epoxidation
04/22/2004DE10247495A1 Verfahren zur Epoxidierung cyclischer Alkene Process for the epoxidation of cyclic alkenes
04/21/2004EP1411051A1 Use of compounds for accelerated phase separation in heterogenic epoxydation reactions of cycloalkenes
04/21/2004EP1411050A1 Process for the epoxydation of cycloalkenes
04/21/2004EP1409471A1 Recovery and purification of 3,4-epoxy-1-butene using water-miscible solvents
04/21/2004EP1409470A1 Recovery and purification of 3,4-epoxy-1-butene using high-boiling solvents
04/21/2004EP1409469A1 Recovery and purification of 3,4-epoxy-1-butene
04/21/2004CN1491342A Exothermic reaction system
04/20/2004US6723861 Catalytic epoxidation reaction is carried out in at least two reactors, distillation, by-products inhibition, catalyst selectivity
04/20/2004US6723404 Iron present at the surface of a clean carbon steel vessel actually provides a natural immunity to polymer production by providing a fresh electron source with a reduction potential effective to convert ferric ions to ferrous ions
04/20/2004CA2140863C Catalysts and their use in oxidation of saturated hydrocarbons
04/15/2004WO2004031107A1 Method for the production of at least one partial propylene oxidation and/or ammoxidation product
04/15/2004WO2004031106A1 Method for the production of at least one partial propylene oxidation and/or ammoxidation product
04/15/2004WO2004030813A1 Calcium carbonate carrier for making silver based epoxidation catalysts
04/15/2004US20040073051 Using an oxidize, catalyst and phase transfer agent
04/15/2004DE10246119A1 Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid, used to produce polymers for adhesives, involves using active multimetal oxide material containing e.g. molybdenum and vanadium
04/15/2004CA2500238A1 Calcium carbonate carrier for making silver based epoxidation catalysts
04/14/2004EP1406885A1 Process for manufacturing an a-dihydroxy derivative and epoxy resins prepared therefrom
04/14/2004EP0980346B1 Co 2? removal from fluorocarbons by semipermeable membrane
04/14/2004CN1488631A Cyclic-aliphatic epoxy compound containing pheneylethylene cinnamyl or maleimide functional group
04/14/2004CN1145580C Partial oxidation of hydrocarbon
04/14/2004CN1145526C Process for preparing catalysts with improved catalytic properties
04/13/2004US6720439 Synthesis of ruthenium-hydride complexes and preparation procedures of chiral alcohols and ketones
04/13/2004US6720436 Process for the epoxidation of olefins
04/13/2004US6720435 Catalyst easily separable from the reaction; discharge the heat of reaction; epoxidation catalysis in fluidized bed without substantial loss of catalytic activity; olefin reacted with a peroxide
04/13/2004US6720434 Process for preparing chiral compounds from recemic epoxides by using chiral salen catalysts
04/08/2004WO2004029032A1 Process for the epoxidation of olefins
04/08/2004WO2004028962A1 Novel aqueous hydrogen peroxide solutions
04/08/2004WO2003084908A3 Preventing undesired odor in and/or purifying alkanediols
04/08/2004US20040068128 And at least one solvent is worked up in such a way that the alpha -hydroperoxyalcohols formed as by-product of the epoxidation remain largely undecomposed or are converted into the corresponding glycols
04/08/2004US20040068127 Method for making an oxirane
04/08/2004US20040067846 Forming using quaternary ammonium template in liquid phase; drying while controlling temperature; solvent extraction
04/08/2004DE10245585A1 Preparation of partial oxidation or ammoxidation product of propylene, e.g. acrolein, involves subjecting dehydrogenated crude propane in the presence of unconverted propane to heterogeneously catalyzed gas phase partial reaction
04/08/2004CA2500396A1 Novel aqueous hydrogen peroxide solutions
04/07/2004EP1404636A1 Integrated process for synthesizing alcohols and ethers from alkanes
04/07/2004EP1292602B1 New chiral salen catalyst and methods for the preparation of chiral compounds from racemic epoxides by using new catalyst
04/07/2004EP1102733B1 Method for reacting an organic compound with a hydroperoxide
04/07/2004EP0741731B1 Process for epoxidising prochiral olefins
04/07/2004CN1144774C Process for preparing 2,3-dihalopropanols
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