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WO/1998/000413A1 |
A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxyg...
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WO/1998/000414A1 |
A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to an olefin oxide, such as propylene oxide. The process involves contacting the olefin under reaction condition...
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WO/1998/000415A1 |
A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to an olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reacti...
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WO/1997/048667A1 |
A 2,3-dihalopropanol is made by reacting 2,3-dihalopropanal with a hydrogenating agent in the presence of a transition metal-containing catalyst, under conditions such that 2,3-dihalopropanol is formed. The reaction is particularly usefu...
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WO/1997/048690A1 |
The hydroxy group of an epoxy-alcohol is selectively alkylated, without affecting the epoxy group, by reaction with an alkylating agent in the presence of a solvent and a strong base. As an example, Betaxolol (4) can be prepared accordin...
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WO/1997/047613A1 |
A process for producing epoxides from olefines and hydrogen peroxide or hydroperoxides in the liquid phase using an oxidation catalyst based on titanium or vanadium silicalites with a zeolithic structure, in which the concentration of th...
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WO/1997/047614A1 |
A process for producing epoxides from olefines and hydrogen peroxide or hydroperoxides using an oxidation catalyst based on titanium or vanadium silicalites with a zeolithic structure and in the absence of an anthrahydroquinone/anthroqui...
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WO/1997/047386A1 |
An oxidation catalyst based on titanium or vanadium silicalites with a zeolithic structure and containing 0.01 to 30 wt.% of one or more noble metals from the group ruthenium, rhodium, palladium, osmium, iridium, platinum, rhenium, gold ...
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WO/1997/046316A1 |
A process for the production of an alumina based catalyst carrier in which a fired carrier body is impregnated with a source of titania in a liquid medium that upon heating yields titania and then calcined to generate titania uniformly d...
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WO/1997/046317A1 |
This invention relates to an epoxidation catalyst which contains silver, one or more alkali metal promoters optionally rhenium and optionally rhenium co-promoter supported on an alpha alumina carrier in which a fired carrier body is impr...
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WO/1997/046545A1 |
An aqueous epoxidation process stream containing molybdenum and sodium values and organics is treated for organics removal as by incineration and an aqueous solution containing molybdenum and sodium is recovered, cooled, acidified and co...
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WO/1997/044129A1 |
Heterogeneous catalysts of mixed-metal compounds of oxygenated acids, the metal comprising Ce, the vanadyl group, and groups (4 and 14) of the periodic table of the elements and the oxygenated acids being selected from acids of groups (6...
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WO/1997/044335A1 |
A process for the distillation of the glycidyl ester reaction product of a straight or branched chain saturated monocarboxylic acid or salt thereof and a halosubstituted monoepoxide is disclosed, wherein the reaction product is subjected...
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WO/1997/042180A1 |
A process for preparing oxiranemethane derivatives which are useful as intermediates for preparing aspartyl protease inhibitors comprising the steps of activating an aminodiol, acylating the aminodiol and reacting the acylated aminodiol ...
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WO/1997/040932A1 |
An improved catalyst carrier is formed by a process that comprises the use of ceramic particle components with particle sizes chosen to ensure that a desired degree of porosity is obtained without recourse to the use of organic burnout m...
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WO/1997/040933A1 |
This invention relates to a catalyst suitable for the epoxidation of olefines having no allylic hydrogen, in particular ethylene, which contains silver and one or more alkali metal promoters supported on a carrier prepared by a process c...
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WO/1997/036680A1 |
This invention relates to a catalyst suitable for the epoxidation of olefine having no allylic hydrogen, in particular for the preparation of ethylene oxide, which catalyst comprises a catalytically effective amount of silver, a promotin...
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WO/1997/034694A1 |
A non-chrome, copper-containing catalyst, Cu-Al-O and method of preparing the same are provided wherein the Cu-Al-O catalyst is prepared by the co-precipitation of copper nitrate (Cu(NO3)2) and sodium aluminate (Na2Al204) solutions using...
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WO/1997/034692A1 |
A catalyst for partial oxidation of hydrocarbons, comprising gold, titanium oxide and a support having a specific surface area of at least 50 m2/g. The support is preferably silicon oxide and/or aluminum oxide. The gold content of the ca...
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WO/1997/034693A1 |
Propylene is oxidized to propylene oxide in the vapor phase using an oxygen-containing gas and a supported silver catalyst comprising silver and a support comprised in whole or in substantial part of an alkaline earth metal-containing co...
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WO/1997/032867A1 |
The production of epoxides from olefines with bis(triorganosilyl) peroxides in the presence of activators based on metal acid derivatives of general formula (1); where M is a metal from the 4th to 7th sub-group, especially molybdenum, tu...
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WO/1997/032866A1 |
The invention concerns a catalyst composition which is free from noble metals and is obtained by: a) preparing an aqueous mixture which comprises: i) a salt of at least one base metal selected from elements having the atomic numbers 21 t...
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WO/1997/031711A1 |
The invention concerns a grid catalyst based on titanium zeolite or vanadium zeolite and on inert reticulated fabrics suitable for use in the catalysis of oxidation reactions such as the epoxidation of olefins, the production of hydrogen...
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WO/1997/028142A1 |
Propylene is converted to propylene oxide in a vapor phase oxidation process employing a silver catalyst supported on an alkaline earth metal carbonate and containing both a potassium salt such as potassium nitrate and a molybdenum promo...
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WO/1997/027182A1 |
A process is disclosed for producing 1,2-butylene oxide by the catalytic hydration of vinyloxirane on a heterogeneous catalyst. The process is characterised by the use of a catalyst produced by coating an inert carrier with at least one ...
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WO/1997/026254A1 |
A process for producing high-purity glycidyl sulfonate derivatives in high yields which comprises reacting glycidol, in particular a reaction mixture containing glycidol and obtained by reacting 3-chloro-1,2-propanediol in an aqueous med...
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WO/1997/025143A1 |
An oxidation catalyst based on titanium or vanadium silicalites with zeolith structure is characterised in that it contains 0.01-20 wt % of one or more lanthanide metals from the group lanthanum, cerium, praseodymium, neodymium, promethi...
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WO/1997/024344A1 |
A process for the preparation of an oxirane compound by reacting an olefinically unsaturated hydrocarbon with an organic hydroperoxide, in the presence of a catalyst comprising a titanasilsesquioxane of the general formula TiLR7Si7O12 an...
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WO/1997/024286A1 |
Zeolite SSZ-33 containing titanium in its framework is prepared by post-synthesis treatment with titanium tetrachloride. The titanium-containing SSZ-33 is useful as a catalyst in oxidation reactions.
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WO1997020630A1 |
The invention relates to amorphous, microporous mixed oxides characterised in that they have, in dry form, a confined pore distribution (half width < +/- 10 % of the pore diameter) of micropores in the range < 3nm in diameter; a total su...
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WO/1997/019069A1 |
A process is proposed for distilling ethylene oxide from a mixture containing ethylene oxide in a column at an absolute pressure of 2-10 bar and a temperature of 20-180 �C; pure ethylene oxide is removed at the top or through a side di...
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WO/1997/017389A1 |
Epoxy resins, which are diglycidyl ethers of tetrabromobisphenol A, having general formula (I) wherein n has an average value, in any batch of resins, between 0.0 and 0.2, which are crystalline and in particulate form.
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WO/1997/013579A1 |
This invention relates to a process for the preparation of a catalyst suitable for the epoxidation of olefins having no allylic hydrogen, in particular ethylene which process comprises depositing a promoting amount of a salt of a rare ea...
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WO/1997/010054A1 |
Catalysts for epoxidizing olefins have the formula (I), in which M stands for a metal of the 4th to 7th secondary group of the periodic table of elements; L1 stands for an amine oxide, phosphane oxide, arsane oxide, pyridin-N-oxide or py...
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WO/1997/010232A1 |
A process for the preparation of a monoepoxide of an olefin selected from norbornene, norbornadiene and olefins having general formula (I), wherein R1 is hydrogen or alkyl and R2 is an aryl group, a tertiary alkyl group or the group havi...
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WO/1997/009321A1 |
Disclosed is method of producing 1,2-butylene oxide by the catalytic hydrogenation of vinyl oxirane over a heterogeneous catalyst obtained by precipitating one or more elements of groups 7 to 11 of the periodic table from the gas phase o...
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WO/1997/006147A1 |
A compound of formula (Ia) or (Ib), wherein A and B each independently represents hydrogen or one, two or three naphthylidene substituents, which substituents are selected from C1-6 alkyl, C1-6 alkoxy, aryl, aryloxy, silyl and silyloxy; ...
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WO/1996/038432A1 |
The proposal is for a novel process for producing epoxidising products by the reaction of olefinically unsaturated compounds with hydrogen peroxide and lower carboxylic acids in the presence of inhibitors and water as the sole solvent.
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WO/1996/037297A1 |
Compounds for catalytic oxidation in the gaseous phase have the general formula (1) QaMbRucRdXeYfSegOh * H2Oi, in which the symbols Q, M, R, X, Y, a, b, c, d, e, f, g, h and i have the following meanings: Q stands for one or several elem...
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WO/1996/037295A1 |
Compounds for catalytic oxidation in the liquid phase have the general formula (1): QaMbRucRdXeYfZgOh * H2Oi, in which the symbols Q, M, R, X, Y, a, b, c, d, e, f, g, h and i have the following meanings: Q stands for one or several eleme...
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WO/1996/034827A1 |
Titanium-containing zeolites containing the MEL crystal structure are prepared using an organic templating agent comprising 3,5-dimethylpiperidinium compounds. The zeolites can be made in the pure phase form, and are useful as catalysts ...
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WO/1996/033183A1 |
A process for preparing an optically-enriched chiral epoxide of formula (I), wherein R1, R2 and R3 are each independently selected from H, R, R-CO- and R-O-CO-, each R independently being substantially a hydrocarbon group of up to 20 car...
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WO/1996/033182A1 |
A process for the catalytic vapour-phase oxidation of ethylene with a molecular oxygen-containing gas, in a single-compartment reactor comprising a multitude of reaction tubes containing a supported silver catalyst and surrounded by a he...
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WO/1996/026907A1 |
The invention concerns the catalytic activity and selectivity of microporous amorphous mixed metal oxide glasses and the use thereof as form-selective heterogeneous catalysts. Microporous amorphous mixed metal oxides (glasses) can be pro...
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WO/1996/026198A1 |
The invention concerns the production of epoxides from olefins using aromatic peroxycarboxylic acids. Following epoxidisation (step A), the aromatic carboxylic acids thereby produced are separated from the epoxides and catalytically hydr...
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WO/1996/023585A1 |
This invention relates to an alkylene oxide catalyst which contains silver and one or more alkali metal promoters supported on a carrier prepared by a process which comprises mixing particulate ceramic components with from 0.5 to 50 part...
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WO/1996/020788A1 |
Compounds of the general formula (1): MxOy(L)z as catalysts for the selective epoxidisation of alkenes in which the indices x, y and z have the following meanings: x is a whole number from 1 to 3, y is a whole number from 1 to 2x + 1, wh...
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WO/1996/020787A1 |
A catalyst and process for treating gas streams which contain halogenated organic compounds, non-halogenated organic compounds, carbon monoxide or mixtures thereof, and particularly gas streams which contain organobromides. The catalyst ...
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WO/1996/020232A1 |
A process to make an allyl ether, allyl thioether or allyl amine comprising the step of reacting an active-hydrogen-containing compound containing at least one hydroxyl, thiol, ester or amine group with a compound containing an allyl car...
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WO/1996/020233A1 |
Epoxy-containing compounds are prepared by: (1) providing an allyl reagent; (2) allylating one or more compounds containing at least one active-hydrogen atom per molecule using the allyl reagent from step (1), whereby an allyl ether, all...
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