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:
Apr. 21, 2025
Filed:
Aug. 10, 2021
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventor:
Yuki Okamoto, Chiba, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/06 (2005.12); B01J 29/70 (2005.12); B01J 29/90 (2005.12); B01J 38/12 (2005.12);
U.S. Cl.
CPC ...
C07C 4/06 (2012.12); B01J 29/7003 (2012.12); B01J 29/90 (2012.12); B01J 38/12 (2012.12); C07C 2529/70 (2012.12);
Abstract
An olefin production method is provided involves a step of catalytically cracking a raw material containing at least a polyolefin and an organochlorine compound in the presence of a zeolite catalyst having a sodium atom content of less than 0.1% by mass. This method improves olefin yield.