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:
Jul. 13, 2010
Filed:
Jul. 15, 2005
Applicants:
Takashi Tsunoda, Kurashiki, JP;
Mitsuhiro Sekiguchi, Kurashiki, JP;
Inventors:
Takashi Tsunoda, Kurashiki, JP;
Mitsuhiro Sekiguchi, Kurashiki, JP;
Assignee:
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 4/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for efficiently and stably producing ethylene and propylene which comprises bringing a hydrocarbon feedstock comprising at least one Colefin into contact with a zeolite-containing catalyst to obtain a reaction mixture containing ethylene and propylene, separating the reaction mixture into a fraction comprising ingredients ranging from hydrogen to Chydrocarbons and a fraction comprising Cand higher hydrocarbons, and recycling the Cand higher hydrocarbons as they are to a reactor.