The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2020
Filed:
Jun. 20, 2017
Mitsubishi Gas Chemical Company, Inc., Chiyoda-Ku, JP;
Tohoku University, Sendai-Shi, JP;
Nippon Steel & Sumitomo Metal Corporation, Chiyoda-Ku, JP;
Nippon Steel Engineering Co., Ltd., Shinagawa-Ku, JP;
Yousuke Shinkai, Tokyo, JP;
Hongyu Liu, Tokyo, JP;
Hidefumi Harada, Tokyo, JP;
Yoshinori Isahaya, Tokyo, JP;
Keiichi Tomishige, Miyagi, JP;
Yoshinao Nakagawa, Miyagi, JP;
Masazumi Tamura, Miyagi, JP;
Kimihito Suzuki, Tokyo, JP;
Yasuki Namiki, Tokyo, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
NIPPON STEEL ENGINEERING CO., LTD., Tokyo, JP;
Abstract
Provided is a method for regenerating an aromatic amide compound into a corresponding aromatic nitrile compound, the method realizing a dehydration reaction of providing a target compound selectively at a high yield with generation of a by-product being suppressed. Also provided is a method for producing an aromatic nitrile compound that decreases the number of steps of dehydration reaction and significantly improves the reaction speed at a pressure close to normal pressure. Furthermore, the above-described production method is applied to a carbonate ester production method to provide a method for producing carbonate ester efficiently. The above-described objects are achieved by a method for producing an aromatic nitrile compound including a dehydration reaction of dehydrating an aromatic amide compound, in which the dehydration reaction uses diphenylether.