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. 12, 1977
Filed:
Oct. 06, 1975
Dennis G Petrille, Batavia, IL (US);
Standard Oil Company (Indiana), Chicago, IL (US);
Abstract
A mixture of BF.sub.3 gas and vapors of an alkane hydrocarbon having a normal boiling point in the range of about 80.degree. to about 125.degree. C are recovered as exhaust from the partial-condensing zone of a stripping system to which is fed 6-25 weight percent of said alkane as a liquid dissolved in the fluid reaction mixture from BF.sub.3 -phenolate catalyzed alkylation of phenol with 500-3000 M.W. liquid viscous mono-olefinic polymer of propylene or butylene and BF.sub.3 -free portion of the fluid reaction mixture is withdrawn as liquid from the partial-reboiling zone of said system. The removal of BF.sub.3 by use of such stripping operation is successful without boiling a mixture of said alkane and said alkylation reaction mixture.