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:
Nov. 05, 1985
Filed:
Apr. 15, 1983
Applicant:
Inventors:
Hiroshi Sato, Ibaraki, JP;
Shuzo Nakamura, Takatsuki, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568939 ; 568940 ; 260688 ;
Abstract
Benzene is efficiently nitrated in gaseous phase with NO.sub.2 or N.sub.2 O.sub.4 in the presence of a catalyst of acidic mixed oxide containing two or more sorts of metal oxides, for example, MoO.sub.3 --WO.sub.3, MoO.sub.3 --TiO.sub.2, WO.sub.3 --TiO.sub.2, TiO.sub.2 --ZnO or TiO.sub.2 --SiO.sub.2.