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. 01, 1986
Filed:
Feb. 28, 1985
Applicant:
Inventors:
Yoshimichi Kiyozumi, Yatabe, JP;
Kunio Suzuki, Yatabe, JP;
Shigemitsu Shin, Yatabe, JP;
Hideo Okado, Yatabe, JP;
Kazumi Noguchi, Yatabe, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585640 ;
Abstract
A process for preparing lower olefin using a calcium phosphate modified zeolite type catalyst is disclosed which is capable of reducing the decomposition of methanol into CO and CO.sub.2 and increasing the olefin selectivity. In the process, the reaction of methanol and/or dimethyl ether is carried out in the presence of an aluminosilicate zeolite-type catalyst which has a Ca-containing compound and a P-containing compound contained therein in predetermined amounts.