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:
Nov. 28, 2023
Filed:
Feb. 19, 2019
Applicant:
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kazunari Morii, Tokyo, JP;
Akiyoshi Fukuzawa, Tokyo, JP;
Assignee:
ASAHI KASEI KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/26 (2006.01); B01J 8/22 (2006.01); B01J 8/24 (2006.01); B01J 21/18 (2006.01); B01J 23/887 (2006.01); B01J 37/16 (2006.01); C07C 255/08 (2006.01);
U.S. Cl.
CPC ...
C07C 253/26 (2013.01); B01J 8/22 (2013.01); B01J 8/24 (2013.01); B01J 21/18 (2013.01); B01J 23/8876 (2013.01); B01J 37/16 (2013.01); B01J 2208/00017 (2013.01); C07C 255/08 (2013.01);
Abstract
A method for producing acrylonitrile, having: a catalyst treatment step of preparing a composite metal oxide catalyst including molybdenum, bismuth, and iron and including 50 ppm or more of carbon; and a vapor-phase catalytic oxidation step of subjecting propylene to ammoxidation reaction using the composite metal oxide catalyst to produce acrylonitrile.