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:
Apr. 13, 1982
Filed:
Jan. 15, 1981
Applicant:
Inventors:
Assignee:
Euteco Impianti S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585466 ;
Abstract
Cumene is prepared by alkylation of benzene with propylene in the presence of a solid phosphoric acid catalyst in a continuous process by delivering liquid benzene and liquid propylene in a molar ratio lower than 6:1, to a liquid reaction medium consisting essentially of benzene and cumene and containing the catalyst, while maintaining the temperature and composition of said medium substantially uniform in each point, operating at 170.degree.-280.degree. C. and in the liquid phase, and with a contact time higher than about 0.4 hours, expressed as the ratio between volume of catalyst and hourly volume of reagents fed in.