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:
Jun. 13, 1978
Filed:
Mar. 29, 1976
Applicant:
Inventors:
Ivan James Lake, Middlesbrough, EN;
Roy John Sampson, Middlesbrough, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 252450 ; 2606 / ;
Abstract
Isomerization of alkylbenzene hydrocarbons, for example xylenes, using a silica/alumina catalyst whose alumina content has been reduced by at least 1% of the original alumina content, from an original alumina content in the range 2 to 40% by weight to a content of at least 1% by weight.