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:
Oct. 05, 2010
Filed:
Apr. 14, 2004
Applicants:
Seigo Watanabe, Iwakuni, JP;
Koichi Mizutani, Yokohama, JP;
Motoo Yanagita, Yokohama, JP;
Jinko Izumi, Toyohashi, JP;
Inventors:
Seigo Watanabe, Iwakuni, JP;
Koichi Mizutani, Yokohama, JP;
Motoo Yanagita, Yokohama, JP;
Jinko Izumi, Toyohashi, JP;
Assignee:
Dia-Nitrix Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/00 (2006.01); B01J 21/00 (2006.01); B01J 20/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A catalyst for acrylonitrile synthesis is disclosed which is composed of particles containing silica and a composite oxide including at least molybdenum. When the Mo/Si atomic ratio in bulk composition of the catalyst is represented by A and the Mo/Si atomic ratio in surface composition of the particles is represented by B, B/A is not more than 0.6.