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:
Aug. 09, 1994
Filed:
May. 28, 1992
Applicant:
Inventors:
Kozo Takatsu, Sodeguara, JP;
Yasushi Wakushima, Sodeguara, JP;
Hiroharu Masunaga, Sodeguara, JP;
Masahiko Sawa, Sodeguara, JP;
Assignee:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C10G / ;
U.S. Cl.
CPC ...
208120 ; 585415 ; 585417 ; 585418 ;
Abstract
Catalytic conversion of organic compounds wherein catalysts come into contact with steam is performed efficiently by using a catalyst which comprises an MFI type zeolite having a ratio of SiO.sub.2 /(Al.sub.2 O.sub.3 +Ga.sub.2 O.sub.3) of 20 to 200 in molar ratio, a ratio of Ga.sub.2 O.sub.3 /Al.sub.2 O.sub.3 of 0 to 50 in molar ratio and a ratio of peak intensity of SiOH, I.sub.SiOH, to peak intensity of acidic OH, I.sub.H.sup.+, determined from .sup.1 H-NMR, I.sub.SiOH /I.sub.H.sup.+, of 0 to 0.5 and loses little catalytic activity on exposure to steam.