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WO/2002/018042A1 |
Reactions between at least two fluid reactants are performed in a reactor comprising wall elements (1), slot-shaped reaction spaces (3) and cavities (5) for conducting a fluid heat-carrier through. Depending on the process and throughput...
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WO/2002/018391A1 |
A compound and method for producing an enantiomerically enriched epoxide from an olefin using a chiral ketone and an oxidizing agent is disclosed. In particular, the compound is of the formula: I wherein R?1¿, R?2¿, R?3¿ and R?4¿ are...
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WO/2002/014297A1 |
The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3 % by weight, u...
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WO/2002/014298A1 |
A process for the continuous production of an olefinic oxide such as propylene oxide by direct catalytic oxidation of an olefin with hydrogen peroxide. The process involves successive reaction, distillation, decomposition, phase, separat...
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WO/2002/014299A1 |
The present invention relates to an integrated process for the preparation in continuous of epoxides which comprises: (a) preparing an alcoholic or hydro-alcoholic solution of hydrogen peroxide in a concentration of over 3 % by weight, u...
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WO/2002/014528A1 |
The present invention relates to a process for the stereoselective enzymatic reduction of 1-halo-2-oxo-3-(protected)amino-4-substituted-butanes utilizing certain species of Rhodococcus and Brevibacterium. The product 1-halo-2-oxo-3-(prot...
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WO/2002/008214A1 |
A catalyst mixture containing a titanium zeolite and a supported gold-containing catalyst is highly selective and productive for transforming olefins to epoxides in the liquid-phase reaction of an olefin, hydrogen, and oxygen. This is pa...
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WO/2002/006188A2 |
Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin (1) is sent to an olefin reaction unit (3) to form an olefin derivative product. The olefin derivative product (4) is recovered from the reacti...
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WO/2002/004116A1 |
The invention relates to a method for producing a stabilised catalyst system. According to said method, a salt of a metal from the first, second or eighth subgroup is reduced to colloidal metal in an essentially water-free, oxidation res...
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WO/2002/002544A1 |
The invention relates to a method for the production of propylene oxide, whereby (i) propylene is reacted with hydrogen peroxide in the presence of methanol to form propylene oxide, resulting in a mixture (Gi), comprising propylene oxide...
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WO/2002/002231A1 |
Process for manufacturing a catalyst, which can be used for oxidation and epoxidation reactions, for example using hydrogen peroxide, comprising a crystal structure based on silicon oxide, such as a zeolite, and at least one metal such a...
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WO/2002/002545A1 |
The invention relates to a method for the production of propylene oxide in the presence of methanol, during which propylene oxide is separated off from a mixture, comprising propylene oxide and methanol and the resulting mixture comprisi...
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WO/2002/000635A1 |
The invention concerns a method for making oxirane by reacting an olefin with a peroxidized compound in the presence of a catalyst and a solvent in at least two reactors arranged in series each containing part of the catalyst, said metho...
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WO/2002/000636A1 |
The invention concerns a method for producing oxirane in a reactor containing a liquid reaction medium, which consists in reacting, in the liquid reaction medium, an olefin with a peroxidized compound in the presence of a solid catalyst ...
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WO/2002/000634A1 |
The invention concerns a method for continuous production of oxirane by reacting an olefin with a peroxidized compound in the presence of a catalyst, a solvent and water in an installation comprising at least a reactor containing the cat...
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WO/2002/000637A1 |
The invention concerns a method for producing oxirane by reacting an olefin with a peroxidized compound in the presence of a catalyst, which consists in introducing the peroxidized compound only in the first reactor, the subsequent react...
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WO/2001/097967A1 |
Catalyst composition comprising titanium chemically bonded to a silica support, characterised in that the silica support is a shaped extrudate of silica powder. The catalyst composition is very useful in the epoxidation of olefins into a...
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WO/2001/098285A1 |
Disclosed is a process for the efficient removal of carbon dioxide from a gas recycle system generated in an epoxidation process wherein 1,3-butadiene is selectively oxidized to 3,4-epoxy-1-butene. Carbon dioxide at low partial pressure ...
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WO/2001/096324A2 |
A process for the vapor phase oxidation of ethylene to ethylene oxide, which process comprises reacting a reaction mixture comprising ethylene and oxygen in the presence of a supported highly selective silver-based catalyst by: operating...
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WO/2001/094290A1 |
The invention relates to a method for producing at least one alkanolamine by reacting ammonia with alkylene oxide in a reaction chamber in the presence of a catalyst, to obtain monoalkanolamine, dialkanolamine or trialkanolamine, or a mi...
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WO/2001/094327A1 |
There is provided a process for the addition of a nucleophile across an electron poor carbon-carbon double bond (a Michael addition) comprising contacting in a solvent: i) a nucleophile; ii) a compound comprising an electron poor double ...
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WO/2001/092242A1 |
Process for manufacturing an oxirane, in which an olefin is reacted, in a diluent chosen from water, alcohols and ketones, with a peroxide compound in the presence of a catalyst and in the presence of a compound comprising an aminocarbon...
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WO/2001/089690A1 |
The present invention relates to chiral salen catalysts and a process for preparing chiral compounds from racemic epoxides by using them. More particularly, the present invention is to provide chiral salen catalysts and its use for produ...
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WO/2001/087867A1 |
The invention relates to a method for the epoxidation of hydrocarbons using oxygen. Said method is characterized in that it is carried out in the presence of a mixture containing at least two metals from the group Cu, Ru, Rh, Pd, Os, Ir,...
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WO/2001/087479A1 |
The invention relates to shaped bodies containing organic-inorganic hybrid material in addition to gold and/or silver particles, to a method for the production thereof and to the use of the same as catalysts. The shaped-body catalysts ar...
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WO/2001/083468A1 |
A method for the purification of propylene oxide, characterized by distilling contaminated propylene oxide in the presence of a hydrocarbon having 5 or fewer carbon atoms. According to this method, impurities (particularly, oxygenic impu...
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WO/2001/083105A1 |
A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of critical amounts of an alkali metal component and a sulfur component, the catalyst being essentially free of rhenium a...
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WO/2001/083466A1 |
The invention relates to a method for epoxidizing olefins.
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WO/2001/083405A1 |
A process for the oxidation of a hydrocarbon, said process comprising partially oxidising in a reaction zone, a mixture comprising a hydrocarbon and an oxygen-containing gas in the presence of a catalyst whic his capable of supporting ox...
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WO/2001/083467A1 |
An olefin epoxidation process is described. The process comprises epoxidizing an olefin with hydrogen peroxide in the presence of a modified titanium zeolite catalyst in water solvent. The titanium zeolite catalyst is modified with a pla...
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WO/2001/081329A1 |
The present invention relates to a method for the preparation of chiral epoxides, more particularly, to a method for preparing chiral epoxides by means of asymmetric epoxidation, comprising reacting olefins with oxidizing agents in the p...
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WO/2001/079190A1 |
The invention provides a method of manufacturing a glycerol monoester which comprises reacting epichlorohydrin with the metal salt of a fatty acid, an aliphatic acid or an aromatic carboxyl acid to form an ester compound with a closed ex...
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WO/2001/077052A1 |
Improved oxidation methods are provided wherein a reaction mixture comprising a substrate to be oxidized (e.g., phenols, alkenes) and an oxidation catalyst (typically dispersed in an organic solvent system) is supplemented with a compres...
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WO/2001/074798A1 |
A composition useful as underfill sealant for the connection of a semiconductor device to a circuit board is reworkable for more easy separation from the semiconductor device and comprises a curable resin having at least one oxirane or t...
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WO/2001/072420A1 |
The present invention relates to a process for the production of a titanium silicalite shaped article by:a) preparation of a synthesis gel containing a Si�2? source, a Ti�2? source, a template compound and water,b) crystallisation of...
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WO/2001/072419A1 |
The present invention relates to a process for the production of a titanium silicalite shaped body by: (a) forming a formable composition containing titanium silicalite, a binder and a pasting agent, so that the Curd curve of the formabl...
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WO/2001/072729A1 |
The invention relates to a continuos method for converting an organic compound with hydroperoxide in the presence of a catalyst. The inventive method is characterised in that the conversion is carried out in a reactor arrangement compris...
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WO/2001/070710A1 |
A process for producing propylene oxide, characterized in that it comprises the following steps and the concentration of water in the isopropylbenzene hydroperoxide solution to be subjected to the epoxidization step is 1 wt.% or lower. O...
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WO/2001/070714A1 |
A process for producing propylene oxide, characterized in that it comprises the following steps and the concentration of ethylbenzene in the isopropylbenzene solution to be recycled to the oxidation step is 10 wt.% or lower. Oxidation st...
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WO/2001/070712A1 |
A process for producing an oxirane compound from ethylbenzene hydroperoxide and an olefin in the presence of an immobilized catalyst layer, characterized by satisfying the following requirements (1) to (4). The catalyst layer has been pa...
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WO/2001/070711A1 |
A process for producing propylene oxide, characterized in that it comprises the following steps and the concentration of isopropylbenzene hydroperoxide in the cumyl alcohol solution is 5 wt.% or lower at the time when the epoxidization s...
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WO/2001/070715A1 |
A process for producing propylene oxide, characterized in that it comprises the following steps and the isopropylbenzene hydroperoxide to be subjected to the epoxidization step has not undergone a heat history including heating at a temp...
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WO/2001/070713A1 |
A process for producing an oxirane compound from an olefin and an organic peroxide other than ethylbenzene hydroperoxide in the presence of an immobilized catalyst layer, characterized by satisfying the following requirements (1) to (4)....
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WO/2001/068623A1 |
. The invention concerns a method for making an oxirane which consists in reacting in a diluent selected among water, alcohols and ketones, an olefin with a peroxidized compound in the presence of a TS-1 titanium silicalite catalyst and ...
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WO/2001/068624A1 |
The present invention relates to a process for producing 10-deacetyl baccatin III from an acidic solution containing a spectrum of taxanes, which comprises contacting the acidic solution with a hydrazine hydrate, thereby to convert into ...
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WO/2001/064582A1 |
The present invention concerns a method for the production of a titanium-containing zeolite by: (a) combining a hydrolyzable silicon compound and a hydrolyzable titanium compound; (b) adding a basic quaternary ammonium compound in an aqu...
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WO/2001/064581A1 |
The present invention concerns a method for the production of a titanium-containing zeolite whereby a synthesis gel is formed by combining and hydrolysing a hydrolysable silicon compound, a hydrolysable titanium compound and a basic quat...
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WO/2001/062752A1 |
Process for the manufacture of diglycidylesters of $g(a),$g(a)'-branched dicarboxylic acids, comprising (a) the reaction of the $g(a),$g(a)'-branched dicarboxylic acid with a halo substituted monoepoxide such as an epihalohydrin, in a 1....
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WO/2001/062380A1 |
Highly selective and productive epoxidation catalysts are prepared by combining a titanium zeolite, palladium, and a gold promoter. The resulting materials are useful catalysts for transforming olefins to epoxides in the reaction of an o...
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WO/2001/058586A1 |
The invention relates to an oxidic material comprising a crystalline silicate phase having a zeolite structure and a compound (E) which contains the elements P, O and at least one element selected from the group consisting of the alkalin...
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