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:
May. 28, 1985
Filed:
Feb. 23, 1984
Applicant:
Inventors:
Roy C Berg, Park Ridge, IL (US);
Thomas P Malloy, Lake Zurich, IL (US);
Bipin V Vora, Elk Grove Village, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585449 ; 585464 ;
Abstract
A process is disclosed for producing a mixture of mono- and diallkylated aromatic hydrocarbons suitable for use as a detergent or as a surfactant in enhanced oil recovery processes. Two alkylation reaction stages are used in series, with a separate amount of an acyclic olefin being charged to each reaction stage. The effluent of the second alkylation reaction stage is separated by fractionation to form a mixture of mono- and dialkylated hydrocarbons. A portion of this mixture is recycled to the second alkylation reaction stage, with remainder being withdrawn as the product stream.