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公开(公告)号：US20220411379A1
公开(公告)日：2022-12-29
申请号：US17777739
申请日：2020-11-18
Applicant: TORAY INDUSTRIES, INC.
Inventor： Daijiro TSUKAMOTO , Kenji KAWAMURA , Katsushige YAMADA , Masato AKAHIRA , Daisuke YAMAMOTO
IPC: C07D223/10
Abstract: The present invention relates to a method of producing ε-caprolactam, the method including the following steps (A) and (B): (A) a step of reacting 5-cyanovaleramide with hydrogen in an aqueous solvent in a presence of a hydrogenation catalyst to obtain a 5-cyanovaleramide hydrogenation reaction mixture; (B) a step of heating the 5-cyanovaleramide hydrogenation reaction mixture at a temperature of 180° C. or higher and 300° C. or lower in an aqueous solvent to obtain ε-caprolactam.
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公开(公告)号：US20170320819A1
公开(公告)日：2017-11-09
申请号：US15523120
申请日：2015-10-27
Applicant: TORAY INDUSTRIES, INC.
Inventor： Masateru ITO , Daijiro TSUKAMOTO , Kenji KAWAMURA , Kohei YAMASHITA , Masato AKAHIRA , Katsushige YAMADA , Koji YAMAUCHI
IPC: C07D201/08 , C08G69/14 , B01J23/44
CPC classification number: C07D201/08 , B01J23/44 , C07B61/00 , C07D223/10 , C08G69/14 , Y02P20/52
Abstract: A method for selective production of ε-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-products is suppressed; is disclosed. The method for producing ε-caprolactam comprises the step of reacting a particular compound inducible from a biomass resource, such as α-hydromuconic acid, 3-hydroxyadipic acid, or 3-hydroxyadipic acid-3,6-lactone, or a salt thereof with hydrogen or ammonia.
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Patent Agency Ranking
公开(公告)号：US20200062704A1
公开(公告)日：2020-02-27
申请号：US16466230
申请日：2017-12-05
Applicant: TORAY INDUSTRIES, INC.
Inventor： Daijiro TSUKAMOTO , Masateru ITO , Katsushige YAMADA , Masato AKAHIRA , Daisuke YAMAMOTO , Koji YAMAUCHI
IPC: C07D201/08
Abstract: 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 the presence of a catalyst containing: a metal oxide mainly containing an oxide(s) of one or more metallic elements selected from the group consisting of metallic elements of group 5 and groups 7 to 14 in the 4th to 6th periods of the periodic table; and a metal and/or a metal compound having a hydrogenation ability. The method can increase the selectivity of ε-caprolactam.
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公开(公告)号：US20220356140A1
公开(公告)日：2022-11-10
申请号：US17763296
申请日：2020-09-24
Applicant: TORAY INDUSTRIES, INC.
Inventor： Daijiro TSUKAMOTO , Kenji KAWAMURA , Katsushige YAMADA , Masato AKAHIRA , Daisuke YAMAMOTO
Abstract: The present invention relates to a method of producing adipic acid, including a step (hydrogenation step) of reacting 3-hydroxyadipic acid-3,6-lactone with hydrogen in an aqueous solvent in a presence of a hydrogenation catalyst. The hydrogenation catalyst preferably includes one kind or two or more kinds of transition metal elements selected from the group consisting of palladium, platinum, ruthenium, rhodium, rhenium, nickel, cobalt, iron, iridium, osmium, copper, and chromium.
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公开(公告)号：US20210032197A1
公开(公告)日：2021-02-04
申请号：US16966183
申请日：2019-02-05
Applicant: TORAY INDUSTRIES, INC.
Inventor： Daijiro TSUKAMOTO , Kenji KAWAMURA , Katsushige YAMADA , Masato AKAHIRA , Daisuke YAMAMOTO
IPC: C07C253/20
Abstract: The present invention provides a method of producing a nitrile from a primary amide, characterized in that the primary amide is subjected to a dehydration reaction in a supercritical fluid in the presence of an acid catalyst. The present invention achieves the object of reducing the corrosion of a reactor and the thermal decomposition of raw materials, as well as provides the effect of improving the reaction rate and nitrile selectivity.
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公开(公告)号：US20250059112A1
公开(公告)日：2025-02-20
申请号：US18724241
申请日：2022-12-21
Applicant: Toray Industries, Inc.
Inventor： Tomoyuki ODASHIMA , Kodai MINAMI , Daijiro TSUKAMOTO
Abstract: The purpose of the method for manufacturing an aromatic hydrocarbon according to the present invention is to provide a manufacturing method for efficiently synthesizing a high purity aromatic hydrocarbon by a continuous reaction. To achieve the above purpose, this method for manufacturing an aromatic hydrocarbon brings ethanol and/or ethylene, and a furan derivative into contact with a catalyst in a continuous reactor.
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公开(公告)号：US20180265445A1
公开(公告)日：2018-09-20
申请号：US15552739
申请日：2016-02-22
Applicant: TORAY INDUSTRIES, INC.
Inventor： Daijiro TSUKAMOTO , Satoshi SAKAMI , Katsushige YAMADA , Tetsu YONEHARA
IPC: C07C51/377 , C07C51/47 , C07C63/04
CPC classification number: C07C51/377 , C07C51/47 , C07C63/04
Abstract: A method for producing highly pure p-toluic acid by a simple solid-liquid separation operation using as a raw material a substance inducible from a biomass resource and suitable for fermentation production by a microorganism is disclosed. The method for producing p-toluic acid includes: a dehydration reaction step of dehydrating Compound(s) (1)-(4), which are substances inducible from biomass resources and suitable for fermentation production by microorganisms; and a solid-liquid separation step of recovering a solid produced by this dehydration reaction by a simple solid-liquid separation operation.
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