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. 26, 1994
Filed:
Dec. 21, 1992
Applicant:
Inventors:
Masaaki Ueda, Yokohama, JP;
Teruo Murakami, Chigasaki, JP;
Shunji Shibata, Kawasaki, JP;
Kazuo Hirabayashi, Yokohama, JP;
Tadami Kondoh, Ebina, JP;
Kohji Adachi, Tokyo, JP;
Nobuko Hoshino, Yokohama, JP;
Shinichi Inoue, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C07C / ; C10G / ;
U.S. Cl.
CPC ...
502 52 ; 208135 ; 502 38 ; 502 51 ; 585407 ; 585415 ;
Abstract
A crystalline silicate catalyst having deposited coke thereon is regenerated by being contacted with an oxygen-containing gas having a moisture content of 0.2% by volume or less at a temperature of 400.degree.-600.degree. C.