Title:
ε－カプロラクタムの製造方法
Document Type and Number:
Japanese Patent JP7125674
Kind Code:
B2
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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Inventors:
Daijiro Tsukamoto
Masateru Ito
Yamada Katsunari
Masato Akabira
Daisuke Yamamoto
Koji Yamauchi
Masateru Ito
Yamada Katsunari
Masato Akabira
Daisuke Yamamoto
Koji Yamauchi
Application Number:
JP2018504304A
Publication Date:
August 25, 2022
Filing Date:
December 05, 2017
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
C07D201/08; B01J23/06; B01J23/08; B01J23/14; B01J23/20; B01J23/44; B01J23/745; B01J23/755; B01J23/847; B01J23/89; C07C253/20; C07C255/19; C07D223/10
Domestic Patent References:
| JP2015517977A | ||||
| JP48039951B1 | ||||
| JP46012132B1 | ||||
| JP47039023A | ||||
| JP49019250A | ||||
| JP2003530380A |
Foreign References:
| WO2012141997A1 | ||||
| WO2012141993A1 | ||||
| WO2016068108A1 |
Attorney, Agent or Firm:
Patent Service Corporation Tanigawa International Patent Office