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:
Feb. 11, 1992
Filed:
Jun. 06, 1991
Applicant:
Inventors:
Alain A Schutz, Penn Township, Westmoreland County, PA (US);
Leonard A Cullo, Greensburg, PA (US);
Assignee:
Aristech Chemical Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
585409 ; 585400 ; 585469 ; 502246 ; 502353 ;
Abstract
Mesitylene (1,3,5 trimethylbenzene) is made by passing acetone in the vapor phase over a niobium catalyst. The catalyst is preferably made by impregnating a silica support with 2% niobium by weight and calcining for about 18 hours at about 550.degree. C. 70% selectivity is obtained at 60-80% by weight conversion.