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JP3852972B2 |
To produce a saturated ester known as an industrially important compound frequently used as a solvent or a reaction solvent in high yield accompanying little decomposition reaction by hydrogenating an ester containing unsaturated group i...
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JP3851002B2 |
To easily and highly efficiently produce an alkylcyclohexanol alkylene oxide adduct which scarcely contains an alkylphenol starting substance and an alkylphenol alkylene oxide adduct derived from the alkylphenol, has a narrow addition di...
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JP2006526622A |
Disclosed herein is a process for the manufacture of 2-(aminomethyl)-1-cyclopentylamine by low-pressure hydrogenation of 1-amino-2-cyano-1-cyclopentene using a combination catalyst system of nickel with palladium on carbon, or a single p...
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JP2006522686A |
A process for enhancing the activity of a catalyst metal particulate for hydrogenation reactions comprising calcining the particulate in an oxidant-containing atmosphere to partially oxidize it thereby forming a porous layer of oxides th...
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JP3828365B2 |
An amorphous alloy catalyst for hydrogenation and its preparation method are disclosed herein. The catalyst essentially consists of nickel ranging between 60 and 98 wt%, iron ranging between 0 and 20 wt%, one doping metal element selecte...
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JP2006255695A |
To provide an alternative material for a tablet-formed Raney catalyst, which is easily produced.An existing active Raney metal formes a thin layer on an appropriate support and in this case the layer is produced by a thermal spraying met...
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JP3819532B2 |
To obtain a new piperidine derivative useful as a n intermediate for medicines such as paroxetine useful as an antidepressant drug. This piperidine derivative shown by formula I (R1 is H, benzyloxycarbonyl, or t-buthoxycarbonyl; R2 is hy...
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JP3795974B2 |
To produce a cyclic α,β-unsaturated ether useful as an intermediate for various kinds of medicines and agrochemicals at high productivity and high conversion and selectivity by performing dehydrogenation and dehydration of an alkane di...
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JP3793267B2 |
To obtain a Raney catalyst for a fixed bed, which is high in initial activity and endurable to use for a long period, and to produce a high purity sugar-alcohol at a low cost by using a Raney catalyst. The lump Raney catalyst produced by...
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JP3787858B2 |
PURPOSE: To readily alkylate a specific triazine derivative into a substituted one useful as an intermediate for medicines, agrochemicals, dyes, etc., in high yield by reacting the triazine derivative with an aldehyde or a ketone in the ...
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JPWO2004080593A1 |
The present invention provides a solid catalyst that synthesizes liquid phase methanol from carbon monoxide and hydrogen under pressure in a solution such as methanol without separation and recirculation. A solid catalyst is used to synt...
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JP3779752B2 |
To obtain the subject compound under mild conditions for both temperature and pressure by reaction of a compound having CO-O group with hydrogen in the presence of a specific noble metal Raney catalyst to effect efficient hydrogenation i...
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JP3781059B2 |
To produce 1,3-propanediol which is useful as a raw material of polyester by hydrogenating glycidaldehyde in the presence of a catalyst. The hydrogenation reaction of (A) glycidaldehyde is carried out in (B) an aqueous solution containin...
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JP3761231B2 |
To obtain a catalyst containing copper capable of maintaining a stable activity for a long period of time by eluting aluminum from a catalyst prepared by mixing and melting a copper-aluminum alloy, a nickel - aluminum alloy and a molybde...
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JP3743867B2 |
PURPOSE: To easily obtain a 2-fluorocyclopropanecarboxylic acid compound in high yield in an industrially advantageous way a simple operation without the need of hydrogen feed, useful as an intermediate for e.g. medicines and agrochemica...
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JP3732005B2 |
To obtain the subject compound useful as an intermediate for pharmaceuticals such as paroxetine for antianxiety agent, etc., on an industrial scale in high efficiency by the use of only a small amount of catalyst by introducing a specifi...
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JP3725600B2 |
To obtain a new compound having a proteoglycan synthesis-stimulating effect in cartilage and a substance P antagonistic action, and useful for the treatment and prophylaxis of degenerative joint disorders, rheumatic diseases accompanied ...
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JP3725422B2 |
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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JP2005532670A |
The invention provides a catalyst useful in a proton exchange membrane containing fuel cell for the electrooxidation of fuels prepared by the chemical activation of vapor deposited substantially semicrystalline PtXaAlb onto a substrate, ...
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JP3683916B2 |
PURPOSE: To provide a method for producing acrylamide especially useful as a raw material for producing polyacrylamide for a flocculant, having a sufficiently high molecular weight and good in water solubility in which the high"quality a...
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JP2005211881A |
To provide a new catalyst and a production method using the same to produce a hydroxy ketone capable of recovering a useful hydrogen at a high selectivity and a high yield.Catalysts for producing a hydroxy ketone containing copper as an ...
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JP2005205265A |
To make a generation speed of hydrogen faster by making a catalytic activity and a reaction surface area of a catalyst body coming into contact with a hydrogen generating agent larger when the hydrogen is generated by making the hydrogen...
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JP2005520682A |
The invention relates to a passivated hydrogenation catalyst that is embedded in a primary amine, a derivative thereof, and/or a nitrile, the process to make such catalysts, as well as the use of such catalysts in a hydrogenation process...
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JP3670033B2 |
PURPOSE: To obtain aromatic diamines and/or polyamines by hydrogenating aromatic dinitro and/or polynitro compounds in the presence of an amine, a catalyst and water. CONSTITUTION: A rapidly flowing mixture of aromatic dinitro and/or pol...
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JP2005181297A |
To determine a concentration of a catalyst material in a suspended state in a hydrogenation reaction mixture on line.The invention measures a potential between a measurement electrode made of an inactive material and immersed into the co...
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JP3668899B2 |
PURPOSE: To produce an aminotriazine derivative in a high yield and high purity by the solvolysis of 4-acylamino-3-oxo-2,3,4,5-tetrahydro-1,2,4-triazine derivative in the presence of gaseous hydrogen chloride in an alcoholic medium. CONS...
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JP2005170780A |
To provide a mechanocatalyst for decomposing water using one of or a mixture of a metal, a semiconductor, a compound and an alloy and mainly producing only hydrogen with the remarkable decrease of the production of oxygen and an apparatu...
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JP3654050B2 |
To obtain an N-acetylcyclohexylglycine compound useful as a synthetic intermediate for an oxazole-type heterocyclic aromatic compound having antipyretic action, etc., in high selectivity and yield by hydrogenating the nucleus of a specif...
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JP3644811B2 |
To provide a method for effectively utilize 4'-dibromomethyl-2- cyanobiphenyl and 4'-bromomethyl-2-cyanobiphenyl in a filtrate formed when producing 4'-bromomethyl-2-cyanobiphenyl. This method for producing 4'-methyl-2-cyanobiphenyl comp...
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JP3631768B2 |
The invention relates to a process and an apparatus for the production of pellets of metal powder, more particularly pellets of highly active metal powder, for example Raney catalysts. According to the invention, no inert gas atmosphere ...
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JP3631141B2 |
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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JP3630709B2 |
PURPOSE: To obtain an aliphatic diamine in high yield in an industrially advantageous single stage reaction process from an aliphatic dialdehyde as a raw material. CONSTITUTION: This aliphatic diamine can be obtained by reaction of a cor...
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JP2004534778A |
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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JP3579923B2 |
PURPOSE: To obtain the subject compound useful as a raw material for a pharmaceutical, etc., at a low cost in high yield and purity, by subjecting an alicyclic diol compound to dehydration reaction in the presence of a specific catalyst ...
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JP2004530719A |
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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JP2004261695A |
To enhance a reaction speed at a catalytic reduction treatment of nitric acid and to realize downsizing of a device and enhancement of a treatment efficiency.The catalyst for reducing nitric acid comprises a nickel based composite cataly...
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JP2004244251A |
To provide a hydrogen generator which can efficiently generate hydrogen from a fuel at ordinary temperature and normal pressure and to provide a method for producing hydrogen desirable as the hydrogen source of a small fuel cell using th...
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JP3560377B2 |
PURPOSE: To obtain a catalyst promoting hydrogenation under low temp. and low hydrogen pressure reaction conditions by using a Raney ruthenium catalyst as a catalyst for hydrogenating a part showing aromatic properties contained in a mol...
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JP2004526686A |
A method for preparation of alcohols by catalytic hydrogenation of carbonyl compounds with hydrogen or hydrogen-containing gases in the presence of a hydrogenation catalyst of Raney type, where the catalyst is used in the form of hollow ...
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JP3555325B2 |
To obtain a biaryl derivative useful as a medicine and an agrochemical and a liquid crystal material. An aromatic boronic acid of formula I [R1 is a halogen, H, a 1-12C alkyl, etc.; R3 and R4 are each H, methyl, ethyl, etc.; A1 is trans-...
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JP3552977B2 |
Preparation of endo-nortropine (I) comprises a 2-step treatment of new 8-benzylnortropan-3-one-perchlorate (II) with catalytically activated hydrogen Preparation of endo-nortropine (I) comprises a 2-step treatment of 8-benzylnortropan-3-...
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JP3547017B2 |
PURPOSE: To obtain 2-amino benzylalcohols of high purity, which are important intermediates as raw materials of drugs, at a high yield by using a simple operation, i.e., hydrogenation of 2-nitro-benzaldehydes in the presence of a metal c...
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JP3544694B2 |
PURPOSE: To economically obtain in an industrially advantageous way by hydrogenating an N-t-butyl-2-pyrazinecarboxamide compound using, as a catalyst, an inexpensive Raney nickel or Raney cobalt. CONSTITUTION: Using, as a catalyst, Raney...
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JP2004518622A |
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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JP2004517135A |
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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JP2004517137A |
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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JP2004516918A |
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 an oxidized cataly...
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JP2004516308A |
A method for producing amines by catalytic hydrogenation of nitrites or imines with hydrogen-containing gases in the presence of a molded hydrogenation catalyst of Raney type, where the Raney catalyst is in the form of hollow bodies.
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JP3526608B2 |
PURPOSE: To profitably obtain 3-methylisoquinoline in an one step reaction by reacting isoquinoline with an alkanol in the presence of a metal catalyst selected from iron, nickel and cobalt, the isoquinoline and the alkanol being inexpen...
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JP3501796B1 |
To provide a magnetized nickel fluidized bed catalyst for hydrogenation reaction having sufficiently high catalytic activity, excellent in settling properties, easily separated, recovered and recycled and reduced in the lowering of settl...
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