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JP5436228B2 |
The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or IPD for short, by aminating hydrogenation of 3-cyano-3,5,5-trimethylcyclohexanone, r...
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JP5410996B2 |
Catalytic processes for preparing caprolactam, pipecolinic acid, and their derivatives, from lysine or alpha-amino-epsilon-caprolactam starting materials, and products produced thereby. A process for preparing caprolactam or a derivative...
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JP5393486B2 |
The invention relates to a process for preparing triethylenetetramine (TETA), which comprises hydrogenating ethylenediaminediacetonitrile (EDDN) in the presence of a catalyst and a solvent.
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JP5393687B2 |
Amino compounds are continuously prepared by hydrogenation of nitrile compounds in the presence of a catalyst, and more particularly diamines are prepared by the continuous hydrogenation of dinitrile compounds in the presence of a Raney ...
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JP5383909B2 |
A process for hydrogenation of oxygen-containing organic products, oil refinery products or mixtures thereof, wherein the process comprises bringing the organic products, oil refinery products, or mixtures thereof into contact with a cat...
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JP2013253102A |
To provide catalytic deamination for carprolactam production.There is provided: catalytic processes for preparing caprolactam, pipecolinic acid, and their derivatives, from lysine or alpha-amino-epsilon-caprolactam starting materials; an...
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JP5369398B2 |
To provide a method for producing a primary amine from a nitrile in high yield while suppressing side reactions to form a condensation product. The method for producing a primary amine comprises a step of preparing a pretreated hydrogena...
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JP5294368B2 |
The present invention relates to an improvement in a process for preparing primary amines by hydrogenating nitriles. The improvement in the hydrogenation process is that a hydrogenation catalyst modified ex situ with preadsorbed alkali m...
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JP5295763B2 |
The invention relates to a method for producing amines of formula (1), wherein R3 is an organic group containing from 2 to 600 alkoxy groups and R1 and R3 groups are similar or different and represent a hydrogen atom or an organic group ...
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JP2013177345A |
To provide a method for producing xylylenediamine economically in a high yield, when producing xylylenediamine by hydrogenating dicyanobenzene obtained by ammoxidation of xylene.In a method for producing xylylenediamine by hydrogenating ...
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JP5279513B2 |
The present invention relates to a process for the preparation of 1,2-propanediol, in which a glycerol-containing stream, in particular a stream obtained on an industrial scale in the production of biodiesel, is subjected to a hydrogenat...
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JP5264824B2 |
The present invention relates to an improvement in a process for preparing primary amines by hydrogenating nitriles. The improvement in the hydrogenation process is that a hydrogenation catalyst modified ex situ with preadsorbed alkali m...
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JP5241721B2 |
A method for producing amines by the hydrogenation of nitrile compounds in the presence of a catalyst, notably a method for producing diamines by the continuous hydrogenation of dinitrile compounds in the presence of a Raney-metal cataly...
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JP2013522269A |
The present invention treats from amines and ethoxylations to aminoalcohols, and the following corresponding aminocarboxylates, in particular the complexing agents MGDA (methylglycineacetacetic acid), EDTA (ethylenediaminetetraacetic aci...
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JP5196922B2 |
The present invention relates to a process for producing a tertiary amine by reducing an amide compound in the presence of a catalyst containing a sponge copper catalyst obtained by leaching alloy particles containing copper and aluminum...
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JP2013510159A |
Improved process for the preparation of 3-fluoro-2-pyridylmethyl-3-(2,2-difluoro-2-(2-pyridyl)ethyla
mino)-6-chloropyrazin-2-one-1-acetamide of formula (I) and its intermediates is provided.
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JP2012525245A |
The present invention relates to a method of conditioning suspended catalysts, wherein at least part of the catalyst-comprising reaction medium is taken from one or more reactors and the suspended, at least partially inactivated catalyst...
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JP4937584B2 |
A methanol-reforming catalyst containing a Ni 3 Al intermetallic compound as a main component that is superior in heat resistance and abrasion resistance and has a high activity and selectivity even at a high temperature.
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JP4898009B2 |
Raney copper which is doped with at least one metal from the group comprising iron and/or noble metals is used as a catalyst in the dehydrogenation of alcohols.
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JP4881317B2 |
A process for the adjustment of a catalyst's or a catalyst precursor's suspension and settling properties, whereby the catalyst is treated with flocculants.
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JP4874253B2 |
The present patent application encompasses a method of determining characteristic numbers for catalyst material by means of electrochemical measurement, the use of this method for optimization and selection of catalysts and processes.
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JP2011256215A |
To provide a desulfurization method of fuel which can obtain a high desulfurization effect (desulfurization rate) even under a mild condition, and to provide the desulfurization method which can obtain the high desulfurization effect eve...
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JP4834217B2 |
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JP4795559B2 |
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JP4763455B2 |
This invention is directed to a process for reforming an alcohol. The process comprises contacting an alcohol with a reforming catalyst comprising copper at the surface of a metal supporting structure, preferably a metal sponge supportin...
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JP4753468B2 |
Hydrogenation catalyst of Raney nickel or cobalt, nickel-on-carrier or cobalt-on-carrier type is modified by treating with carbon mon- or di-oxide, formaldehyde, lower aliphatic aldehyde, aromatic aldehyde, aliphatic and/or aromatic keto...
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JP4750919B2 |
In the production of durene diisocyanate (I) from durene, the liquid phase from nitration with nitric acid in sulfuric acid is diluted with water. Dinitrodurene is extracted with an inert, water-immiscible, aprotic organic solvent and th...
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JP4739714B2 |
Cooling rollers or discs with a structured surface (transverse grooves for rollers or grooves running outwards from the axis of rotation in the case of discs) are used for rapidly cooling the aluminum/nickel alloy melt in the production ...
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JP4709352B2 |
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JP4696062B2 |
Processes for prepering 1-benzyl-4-[(5,6-dimethoxy-lindanon)-2-yl]methylpiperidine (donepezil), which is useful as an intermediate for medicines, and for producing 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine hydrochloride...
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JP2011515411T |
In this indication, the manufacturing method of ドデカン 2 acid (DDDA) is provided.
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JP2011515411A |
The present disclosure provides processes for the preparation of dodecanedioic acid (DDDA)
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JP4668628B2 |
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JP4654413B2 |
To provide a catalyst for steam reforming of a hydrocarbon which has high activities and excellent heat resistance properties. The catalyst for stem reforming of the hydrocarbon uses a Ni3Al intermettalic compound or a material subjected...
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JP4641101B2 |
The present invention relates to a process by a series of reactions using tetrafluorocyanobenzens as material for producing tetrafluorobenzenemethanols, tetrafluorobenzenecarbaldehyde dialkylacetals and tetrafluorobenzenecarbaldehydes in...
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JP4625277B2 |
Process for treating aluminum alloys with organic or inorganic bases, preferably alkali carbonate or alkali hydroxide, especially sodium hydroxide or potassium hydroxide, comprises following a leaching process using potential difference ...
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JP4593782B2 |
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JP4591349B2 |
The present invention relates to a process for preparing 4-aminotetrahydropyran compound and an acid salt thereof represented by the formula (2): wherein R represents a hydrogen atom or a hydrocarbon group, which comprises subjecting a 4...
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JP4573003B2 |
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JP4564980B2 |
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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JP4535704B2 |
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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JP4530461B2 |
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JP4496585B2 |
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JP4496584B2 |
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JP4490510B2 |
Leached nanocrystalline materials having a high specific surface are particularly useful for storing hydrogen or as catalysts or electrocatalysts in the manufacture electrodes, especially for fuel cells. Such materials can be manufacture...
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JP4481524B2 |
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JP2010520167A |
The invention relates to a process for preparing an ethylene amine mixture, which comprises the following steps: a) crude AAN which is largely free of formaldehyde cyanohydrin (largely FACH-free) is heated at a temperature of from 50 to ...
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JP2010520247A |
The invention relates to an improved process for preparing trimethylhexamethylenediamine, hereinafter referred to as TMD for short, by hydrogenation of trimethylhexamethylenedinitrile, hereinafter referred to as TMN for short, in the pre...
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JP4454239B2 |
To provide a copper-based catalyst having high activity and excellent heat resistance and durability and a method for preparing this catalyst at a low cost by using a process as simple as possible. This heat-resistant catalyst is compose...
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JP2010511639A |
The invention provides a process for preparing polyetheramines of the formula (1), R2 (NR1R3)n, in which n is a number from 1 to 20, R2 represents an organic radical that contains between 2 and 600 oxalkylene groups, and R1 and R3 are al...
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