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. 26, 1988
Filed:
Mar. 24, 1986
Applicant:
Inventors:
Youjirou Takahashi, Himeji, JP;
Junichi Toyoda, Himeji, JP;
Toshimasa Kushihara, Himeji, JP;
Ikuo Kurimoto, Himeji, JP;
Shigemi Osaka, Himeji, JP;
Yoshiyuki Nakanishi, Himeji, JP;
Assignee:
Nippon Shokubai Kagaku Kogyo Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549257 ;
Abstract
An improved process for producing maleic anhydride which comprises catalytically oxidizing benzene with a molecular oxygen-containing gas in the vapor phase in a multitubular heat-exchanger-type reactor. The process is characterized in that