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WO/2003/000651A2 |
The invention relates to the hemihydrogenation of dinitriles to form corresponding aminonitriles. The invention more particularly relates to a method for the hemihydrogenation of dinitriles in the presence of water and selectifying agent...
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WO/2003/000650A2 |
The invention relates to the hemihydrogenation of dinitriles in order to form corresponding aminonitriles. The invention more particularly relates to the use of a Raney-nickel based catalyst with rhodium and/or iridium.
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WO/2002/096862A2 |
Process for converting a dinitrile to a diamine and optionally an aminonitrile, in which a Group VIII element catalyst is treated with a modifier either before or during a substantially solvent-free hydrogenation reaction in which the di...
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WO/2002/083818A2 |
The present invention is directed to a method of desulfurization of a sulfur laden hydrocarbon liquid that comprises contacting the liquid with a sponge nickel metal alloy, removing the sulfur free liquid, regeneration of the alloy by co...
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WO/2002/076610A1 |
A catalyst which contains at least one element selected from the group consisting of Group V elements, Group VI elements, Group VII elements, Group VIII elements, Group IX elements, Group X elements, and Group XI elements in the periodic...
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WO/2002/068368A1 |
A process is disclosed for the hydrogenation of carbon monoxide. The process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effec...
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WO/2002/055476A1 |
A process for the preparation of substituted amines by catalytic hydrogenation of substituted organic nitro compounds with hydrogen or hydrogen-containing gas mixtures in the presence of a shaped Raney catalyst as the hydrogenation catal...
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WO/2002/055453A2 |
Process for the preparation of completely or partly saturated organic compounds by catalytic hydrogenation of unsaturated organic compounds with hydrogen or hydrogen-containing gas mixtures in the presence of a shaped Raney catalyst as t...
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WO/2002/051779A2 |
The invention relates to a method for producing alcohols by catalytically hydrogenating carbonyl compounds with hydrogen or with gases that contain hydrogen in the presence of a hydrogenation catalyst of the Raney type, whereby the catal...
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WO/2002/051791A2 |
The invention relates to a method for producing amines by catalytically hydrogenating nitriles or imines with gases containing hydrogen, in the presence of a Raney hydrogenation catalyst in the form of hollow bodies.
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WO/2002/045188A2 |
Inks are formulated for froming anode and cathode catalyst layers and applied to anode and cathode sides of a membrane for a direct methanol fuel cell. The inks comprise a Pt catalyst for the cathode and a Pt-Ru catalyst for the anode, p...
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WO/2002/020438A2 |
A process of enhancing both the activity and the methane selectivity of a particulate Dispersed Active Metal ('DAM') hydrogenation catalyst is disclosed wherein the DAM undergoes low temperature oxidation in a slurry phase to form a stab...
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WO/2002/020439A1 |
There is provided an improved system and process for the catalytic hydrogenation of carbon monoxide to form a mixture of hydrocarbons utilizing a plurality of reactors in series. Synthesis gas entering the system under pressure is partia...
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WO/2002/020700A2 |
A process of enhancing both the activity and the methane selectivity of a Dispersed Active Metal ('DAM') hydrogenation catalyst is disclosed wherein the DAM undergoes low temperature oxidation in a slurry phase to form a stable, unique o...
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WO/2002/020159A2 |
A process of enhancing both the activity and the methane selectively of a Dispersed Active Metal ('DAM') hydrogenation catalyst is disclosed wherein the DAM undergoes low temperature oxidation in a slurry phase to form an oxidized cataly...
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WO/2002/020440A1 |
A method is disclosed for enhancing the activity of a particulate Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out ...
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WO/2002/020441A1 |
A method is disclosed for renewing the activity of a Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out comprising wi...
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WO/2001/076737A1 |
A method of producing a Raney type catalyst, the method comprising melting together a Raney metal and aluminium to form an alloy mixture, pouring the mixture through a nozzle, directing a gas jet on to the mixture to form a spray of drop...
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WO/2001/066511A1 |
The invention concerns a method for hydrogenating nitrile functions into amine functions. More particularly, the invention concerns a method for total or partial hydrogenation of dinitrile compounds into diamine or aminonitrile compounds...
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WO/2001/047633A2 |
The invention relates to Raney alloy catalysts, which are applied to a support and which have an extremely thin layer comprised of the Raney alloy with a thickness ranging from 0.01 to 100 $g(m)m. These catalysts are produced by vacuum m...
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WO/2001/043863A1 |
A batch process for carrying out a hydrogenation reaction comprises mixing a pyrophoric catalyst with reactants and solvents to form a reaction mixture in a reaction vessel. Hydrogen is added to the reaction vessel. After hydrogenation, ...
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WO/2001/043864A1 |
Spent pyrophoric reaction catalyst from a reaction mixture is removed safely, cheaply and rapidly using a single plate pressure filter. After hydrogenation, the reaction mixture is decanted, the desired hydrogenation product is removed a...
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WO/2001/000550A1 |
The invention relates to a method for producing mannitol from fructose, whereby the hydrogenation of fructose occurs in the presence of a Raney copper catalyst and is carried out in continuous operation.
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WO/2000/067903A1 |
A novel precious metal doped porous metal catalyst is disclosed. The precious metal is present in from 0.01 to 1.5 weight percent and distributed throughout the particles of porous metal to provide a surface to bulk ratio distribution of...
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WO/2000/068173A1 |
A process for efficiently producing highly pure tetrafluorobenzenemethanols, tetrafluorobenzenecarbaldehyde dialkyl acetals and tetrafluorobenzenecarbaldehydes, which are useful as, for example, intermediates in the production of cyclopr...
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WO/2000/066262A1 |
The present invention relates to an amorphous alloy hydrogenation catalyst and its preparation. The catalyst comprises 60$m(k)98 wt.% of Ni, 0$m(k)20 wt.% of FC, 0$m(k)20 wt.% of a metal selected from the group consisted of Cr, Co, Mo, M...
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WO/2000/066539A1 |
The present invention provides a new and useful improvement in the process to manufacture a carboxylic acid salt, particularly an amino carboxylic acid salt, from a primary alcohol, particularly a primary aminoalcohol. The process of man...
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WO/2000/064862A2 |
Provided is a selective hydrogenation process for producing aminonitriles by contacting the corresponding dinitriles with a hydrogen-containing fluid in the presence of a hydrogenation catalyst, a solvent and an additive for improving th...
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WO/2000/056698A1 |
Disclosed is an improved process for preparing 1-chloro-2,4-diaminobenzene by the selective hydrogenation of 1-chloro-2,4-dinitro-benzene wherein the hydrogenation is carried out in the presence of a modified Raney nickel catalyst contai...
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WO/2000/032310A1 |
Raney copper, which is doped (promoted) with an effective quantity of a doping (promoting) agent selected from the group boric acid, onium fluorides, salts of fluorine complex anions, and heteropoly acids, represents an outstanding oxida...
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WO/2000/027525A1 |
The present invention relates to a Raney catalyst comprising iron, cobalt, a third metal wherein the third metal is selected from the group consisting of nickel, rhodium, ruthenium, palladium, platinum, osmium, iridium and mixtures of an...
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WO/2000/027526A1 |
The present invention relates to a Raney catalyst comprising iron, cobalt, a third metal wherein the third metal is selected from the group consisting of nickel, rhodium, ruthenium, palladium, platinum, osmium, iridium and mixtures of an...
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WO/2000/026165A1 |
A method of reducing an epoxidized organic compound, e.g., a C¿5-20? (un)saturated epoxy alicyclic organic compound, with hydrogen which comprises contacting the compound with hydrogen in the presence of a nickel catalyst, wherein a bas...
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WO/2000/017138A1 |
A process which comprises reducing a fluorobenzonitrile derivative (1) into a fluorobenzylamine derivative (2) and replacing the amino group of the derivative (2) by hydroxyl to thereby obtain a fluorobenzyl alcohol derivative (3), where...
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WO/1999/033561A1 |
The invention concerns a method for regenerating a hydrogenation catalyst, and hydrogenation methods carried out with a catalyst comprising at least one regenerated catalyst. More particularly, it concerns a method for regenerating Raney...
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WO/1999/028028A1 |
The invention relates to Raney nickel catalysts obtained by allowing the melt of an alloy consisting of 50 to 95 wt. % aluminium, 10 to 50 wt. % nickel, 0 to 20 wt. % iron, 0 to 15 wt. % cerium, cerium misch metal, vanadium, niobium, tan...
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WO/1999/003801A1 |
The invention relates to a method for the catalytic hydrogenation of a carbonyl compound, or a mixture of two or more carbonyl compounds, in the presence of a Raney copper catalyst. The Raney copper catalyst is used in nugget form.
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WO/1998/053910A1 |
The invention relates to a moulded, activated metallic fixed-bed catalyst having a pore volume of 0.05-1 ml/g and an outer, activated shell consisting of a sintered, small-particle catalyst alloy as well as optional catalyst promoters. T...
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WO/1998/033767A1 |
A process for preparing a cyanoarylmethylamine by hydrogenating only one of the two cyano groups of an aromatic dinitrile, which enables the preparation of the objective amine in a high yield through the reaction of the dinitrile at a hi...
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WO/1998/032885A1 |
The invention concerns leached nanocrystalline materials having a large specific surface area particularly useful for storing hydrogen or for making electrodes for catalysis or electrocatalysis, such as those used in fuel cells. These ma...
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WO/1998/016309A1 |
According to the invented process an alloy powder of catalytically active metal(s) and alkali-soluble metal(s) is suspended in a solution having a weight 3-10 times of that of the alloy and containing 0.5-4 wt.% of an alkali hydroxide, w...
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WO/1998/015513A1 |
The invention concerns a process for preparing 1,4-butanediol by continuous catalytic hydrogenation of 1,4-butinediol in that 1,4-butinediol is reacted with hydrogen in the liquid continuous phase in the presence of a heterogeneous hydro...
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WO/1998/011058A1 |
The invention concerns catalysts suitable for preparing aliphatic alpha-, omega-aminonitriles by partial hydrogenation of aliphatic dinitriles, containing: (a) metallic cobalt, a cobalt compound or their mixtures, the metallic cobalt por...
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WO/1998/011062A1 |
The current invention relates to new benzamidine derivatives, a process for the manufacture and the use thereof as medicaments. The new benzamidine derivatives have the general formula (1).
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WO/1997/046306A1 |
The invention discloses a method for filtering a three-phased reaction mixture,comprising a liquid phase, an undissolved solid catalytic phase and a gas phase. More precisely it consists tangentially in filtering on one membrane filter a...
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WO/1997/037964A1 |
The invention concerns a method of simultaneously producing 6-aminocapronitrile (ACN) and hexamethylenediamine (HMD) by reacting adipodinitrile (ADN) with hydrogen in the presence of a catalyst containing nickel, at a temperature not bel...
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WO/1996/020043A1 |
The invention concerns the production of a hydrogenation catalyser based on an aluminium/transition metal alloy. The proposed method involves producing a kneadable material from the alloy and an auxiliary agent, moulding the kneadable ma...
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WO/1996/018603A1 |
A method for partially hydrogenating aliphatic dinitriles to the corresponding aminonitriles by means of hydrogen and in the presence of a catalyst selected from a Raney nickel catalyst, a Raney cobalt catalyst, a Raney nickel catalyst c...
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WO/1996/010564A1 |
Compounds (II) are prepared by ring closure of compounds (IV), which are obtained by acylation of the corresponding amino compounds (IV). Coumpounds (II) can be reduced to the amino-benzazepinones (IA), which can be separated in the opti...
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WO/1995/027727A2 |
The present invention is drawn to a process for forming an amide bond linkage comprising reacting a carboxylic acid and an amine in a two-phase mixture of water and an organic solvent selected from an oxygenated organic solvent or an aro...
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