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WO/1996/000722A1 |
Production of cyclic lactames by reaction with water of aminocarboxylic acid compounds of general formula (I) in which R1 is -OH, -O-C1-C2-alkyl or -NR2-R3, R2 and R3 are mutually independently hydrogen, C1-C12 alkyl and C5-C8 cycloalkyl...
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WO/1995/019950A1 |
The present invention relates to a method of reacting polyamides or mixtures thereof with ammonia to obtain a mixture of monomers. The reaction is carried out in the presence of certain Lewis Acid catalyst precursors.
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WO/1995/018783A1 |
Process for the preparation of a linear 'omega'-formyl-carboxylic acid or a corresponding linear formyl-nitrile compound starting from an internally unsaturated C4-C12 carboxylic acid or a corresponding ester or nitrile by means of hydro...
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WO/1995/014664A1 |
A process is proposed for manufacturing cyclic lactams by allowing aminocarboxylic acid nitriles to react with water. This is done in the liquid phase in the presence of heterogeneous catalysts based on titanium dioxide, zirconium oxide,...
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WO/1995/014665A1 |
A process is proposed for the production of cyclic lactams by allowing aminocarboxylic acid nitriles to react with water in the presence of catalysts. The reaction takes place in the fluid phase in a fixed bed reactor in the presence of ...
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WO/1994/024102A1 |
Waste nylon 6 and/or nylon 6,6 are treated with aliphatic monocarboxylic acid to depolymerize the polymer to desirable monomer.
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WO/1994/008942A1 |
A process is disclosed for simultaneously depolymerizing nylon 6 and 6,6 and reclaiming the monomer values by steam distillation, in the presence of a basic nylon depolymerizing catalyst.
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WO/1994/006763A1 |
epsilon-Caprolactam is continuously recovered from carpet made from nylon 6 face fibers and a backing. The carpet is fed to a separator to prepare scrap containing nylon 6 and auxiliary materials. The scrap from the separator is fed to a...
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WO/1993/017787A1 |
A catalyst and method for producing N-substituted pyrrolidones utilizes a copper-palladium catalyst disposed on a support and mixed with a desired alcohol and 2-pyrrolidone. A reaction is undertaken under a hydrogen atmosphere, preferabl...
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WO/1993/016042A1 |
The invention relates to a process for producing pyrrolidone and N-alkyl pyrrolidones from saturated or unsaturated 1.4-bicarboxylic acids and their anhydrides, hydrogen and a primary amine or ammonia, in which the bicarboxylic acid or i...
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WO/1992/022528A2 |
A process of using fast pyrolysis in a carrier gas to convert a plastic waste feedstream having a mixed polymeric composition in a manner such that pyrolysis of a given polymer to its high value monomeric constituent occurs prior to pyro...
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WO/1988/004651A1 |
Method and improved apparatus for recovering a volatile organic material, such as caprolactam, from a liquid mixture of organic and inorganic materials. The method features the step of mixing the liquid mixture with superheated steam for...
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WO/1985/003222A1 |
Hair colorant with a certain concentration of picramic acid derivatives having the formula (I) wherein R represents an alkyl, hydroxyalkyl, dihydroxyalkyl, epoxyalky, alkoxyalkyl, aminoalkyl, alkylaminoalkyl or dialkylaminoalkyl rest. Th...
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JP2024504312A |
The present invention relates to a method for purifying laurolactam, and more particularly to a method for purifying laurolactam with high purity and almost no impurities. The present invention is a method for purifying laurolactam from ...
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JP2023550492A |
The present invention comprises the steps of: a) synthesizing cyclododecanone oxime to laurolactam by Bechmann rearrangement under a catalyst; b) mixing the laurolactam synthesized in step a) with a good solvent; c) mixing the laurolacta...
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JP2023099166A |
To provide a novel method for preparing caprolactam from 6-aminocaproic acid (hereafter called 6-ACA) obtained in a biochemical process, and in particular such a method that allows a satisfactory caprolactam yield.The invention provides ...
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JP2023515071A |
The present invention is a lamp (1) for a photochemical reactor: - at least one lamp made of a material having a thermal conductivity of 100 W/mK or more at 20°C and configured to contain a cooling fluid; a support member (2) containing...
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JP2023504265A |
The present invention comprises the steps of a) synthesizing cyclododecanone oxime as laurolactam by Bechmann rearrangement under a catalytic system, and b) mixing laurolactam synthesized in step a) with a good solvent. , a step of remov...
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JP2022184796A |
To provide a haloalkylsulfonanilide derivative that has excellent herbicidal activity.Provided is a compound of formula [I]. (W: O, S. R1: C1 to C6 haloalkyl. R2: H, cyano, etc. R3 to R6: H, C1 to C6 alkyl. R7: H, halogen, C1 to C6 alkyl...
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JP2022543990A |
A process is provided for the preparation of aripiprazole lauroxyl comprising reacting 1-(hydroxymethyl)aripiprazole with lauric anhydride in the presence of DMAP and a solvent. [Chemical 1] [Selection figure] None
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JP2022130510A |
To provide new methods for producing cis-alkoxy substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives and new intermediates or starting compounds that are used in the methods.Such a one-pot process is used that a compound of a fo...
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JP7125674B2 |
The present invention is a method of producing ε-caprolactam through adipamide as an intermediate, and characteristically includes a lactamization step of reacting adipamide, formed from a material compound, with hydrogen and ammonia in...
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JP2022090290A |
To provide a light source device for photochemical reaction having a heat sink made of an aluminum alloy resistant to corrosion, a photochemical reaction device and method using the light source device, and a method for producing lactam ...
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JP2022520993A |
INDUSTRIAL APPLICABILITY The present invention is a compound (I) useful for the prevention and treatment of a viral disease in a patient in connection with a hepatitis B infection or a disease caused by the hepatitis B infection. , Or a ...
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JP2022040918A |
To provide a compound that can solve problems of conventional catalysts using Au nano particles, exhibits high catalyst activity not only in production of amides by α-methylene group selective oxygenation reaction of an alkyl amine havi...
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JP6980023B2 |
The invention relates to a method for producing cyclododecanone (CDON). During the production, contaminated cyclododecane (CDAN) is produced. This can be separated from CDON by distillation (CDAN-containing fraction). The separation of C...
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JP6866894B2 |
A production method of ε-caprolactam, comprising a step of Beckmann-rearranging cyclohexanone oxime in a gas phase in the presence of a zeolite catalyst containing a silicon element and at least one element selected from the group consi...
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JP6852181B2 |
The present invention relates to a process for purifying caprolactam from solutions of crude caprolactam by a direct treatment with one or more alkaline compounds of polyvalent metals, preferably bivalent and trivalent, without resorting...
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JP6786052B2 |
A method of producing µ-caprolactam from 3-oxoadipic acid which is preferred as a biomass resource is disclosed. The method of producing µ-caprolactam includes: the step 1 of mixing at least one selected from the group consisting of 3-...
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JP2020114227A |
To provide compositions of industrially useful alcohol, amine, lactone, lactam and acid, linear fatty acid and linear fatty alcohol with the carbon length of 7 to 25, linear alkane and linear α-alkene with the carbon length of 6 to 24, ...
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JP6672792B2 |
A method for selective production of µ-caprolactam, wherein a substance inducible from a biomass resource is used as a material; the reaction process is short; ammonium sulfate is not produced as a by-product; and production of by-produ...
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JP6610687B2 |
A power supply device, a photochemical reaction device and method in which the power supply device is used, and a lactam production method in which the photochemical reaction method is used, the power supply device being characterized by...
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JP6567332B2 |
The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloalkane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of ...
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JP6559251B2 |
Methods for producing lactams from oximes by performing a Beckmann rearrangement using a hierarchical porous aluminophosphate catalyst having interconnected microporous and mesoporous networks are provided. Exemplary catalysts include a ...
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JP2019115352A |
To provide a method for preparing ε-caprolactam (caprolactam) from biochemically prepared 6-aminocaproic acid (6-ACA).A method for preparing caprolactam comprises recovering a mixture containing 6-aminocaproic acid from a culture medium...
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JP6544118B2 |
A method for producing zeolite and a method for producing -caprolactam. It is another object of the present invention to provide a method for producing a zeolite which is more excellent from the viewpoint of catalytic activity. The objec...
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JP2019515934A |
The present invention relates to novel methods for producing cis-alkoxy-substituted spirocyclic 1-H-pyrrolidin-2,4-dione derivatives and novel intermediates or starting compounds used in the methods of the invention.
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JP6513823B2 |
Disclosed herein is an efficient, economical, industrially advantageous, straight-through process for the preparation of cyclic amides, also referred as lactams, in substantially pure form and high yield, from the corresponding cyclic ke...
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JP2019055999A |
To provide a method for preparing lactams through photonitrosation of a cycloalkane using nitrosyl chloride (NOCL).The photonitrosation is carried out by means of LEDs emitting a monochromatic light. Beckmann transposition/dechlorination...
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JP6499225B2 |
The invention relates to a method for preparing caprolactam comprising recovering a mixture containing 6-aminocaproic acid, from a culture medium comprising biomass, and thereafter cyclising the 6-aminocaproic acid in the presence of sup...
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JP6419083B2 |
Provided is a photochemical reaction device wherein two partitions formed from an optically transparent material are arranged apart from each other between a light source and a reaction liquid, and an optically transparent fluid introduc...
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JP2018076235A |
To provide a method for producing ε-caprolactam at a high reactivity and a high selectivity by a rearrangement reaction of cyclohexanone oxime produced by even using cyclohexylamine as the raw material.A production method of ε-caprolac...
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JP6320413B2 |
A method is described for the production of purified caprolactam, comprising the steps: a) extraction with an organic extraction agent of raw caprolactam, obtained from the Beckmann rearrangement of cyclohexanone oxime, b) separation of ...
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JP6243340B2 |
Methods for producing lactams from oximes by performing a Beckmann rearrangement using a silicoaluminophosphate catalyst are provided. These catalysts may be used in gas phase or liquid phase reactions to convert oximes into lactams. Hig...
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JP6235769B2 |
The invention relates to a method for preparing lactames, according to which a photonitrosation of a cycloalkane is carried out using nitrosyl chloride (NOCI). According to the invention, said photonitrosation is carried out by means of ...
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JPWO2016199706A1 |
A control circuit that controls a current from a power supply source, a cooling means that can cool the surroundings by the flow of a refrigerant, a heat transfer means that connects the cooling means and the control circuit, and the hea...
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JP2017132797A |
To provide a method for preparing lactams through photonitrosation of a cycloalkane using nitrosyl chloride (NOCL).The photonitrosation is carried out by means of LEDs emitting a monochromatic light. Beckmann transposition/dechlorination...
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JPWO2016059942A1 |
A device installed between a three-phase AC power supply and a group of light-emitting diodes, which is a three-phase full bridge circuit in which a pair of switching elements are connected in parallel between the three-phase DC bus of t...
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JP6137333B2 |
Provided are a photoirradiation device equipped with: a first optically transparent container for covering a light-emitting body provided with light-emitting diodes; a liquid phase section provided on the outside thereof and formed from ...
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JP2017081987A |
To provide a method for preparing lactams through photonitrosation of a cycloalkane using nitrosyl chloride (NOCL).The photonitrosation is carried out by means of LEDs emitting a monochromatic light. Beckmann transposition/dechlorination...
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