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:
Oct. 18, 1983
Filed:
Jun. 04, 1982
Applicant:
Inventors:
William B Fisher, Chester, VA (US);
Jan F Van Peppen, Chester, VA (US);
Assignee:
Allied Corporation, Morris Township, Morris County, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585800 ; 568749 ;
Abstract
Alpha-methyl styrene, obtained as a byproduct in the manufacture of phenol is hydrogenated to cumene using hydrogen and standard hydrogenation catalysts which are selective for the ethylenic side chain. Prior to hydrogenation the alpha-methyl styrene is treated to effect removal of hydroxy acetone present. By reducing or eliminating hydroxy acetone, poisoning of the catalyst is prevented. Hydroxy acetone is removed from the alpha-methyl styrene by catalytic pretreatment.