logo

For the Inventor, By the Inventor

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.:

US 11446643 B1

PDFFull Text
Date of Patent:
Sep. 20, 2022

Filed:

Jun. 18, 2018

Method for producing catalyst and method for producing unsaturated nitrile

Applicant:

Asahi Kasei Kabushiki Kaisha, Tokyo, JP;

Inventors:

Kazunari Morii, Tokyo, JP;

Akiyoshi Fukuzawa, Tokyo, JP;

Masatoshi Kaneta, Tokyo, JP;

Assignee:

ASAHI KASEI KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Patricia L Hailey

Int. Cl.
CPC ...
B01J 23/887 (2006.01); B01J 37/08 (2006.01); C07C 253/22 (2006.01); C07C 253/26 (2006.01);
U.S. Cl.
CPC ...
B01J 23/8876 (2013.01); B01J 37/08 (2013.01); C07C 253/22 (2013.01); C07C 253/26 (2013.01); B01J 2523/54 (2013.01); B01J 2523/68 (2013.01); B01J 2523/842 (2013.01);
Abstract

A method for producing a catalyst, including a slurry preparation step of preparing a slurry comprising a Mo compound, an Fe compound, a Bi compound, and an additive having a decomposition temperature of 500° C. or less; a drying step of drying the slurry to obtain a dried material; and a calcination step of calcining the dried material to obtain a calcined material, wherein the calcination step comprises a step of raising temperature of a calcination atmosphere to a predetermined temperature, and a temperature raising rate is 10° C./min or less at least at a temperature equal to or lower than the decomposition temperature of the additive.

Find Patent Forward Citations

Morii, Kazunari. (2022). Method for producing catalyst and method for producing unsaturated nitrile (U.S. Patent No. 11446643). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11446643

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…