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:
Aug. 27, 1985
Filed:
Dec. 13, 1983
Applicant:
Inventor:
Cecil O Carter, Wann, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585512 ; 585510 ; 585950 ; 208 / ;
Abstract
A method of pre-conditioning the walls of an olefin dimerization reactor and starting a dimerization process comprises sequential steps of introducing a first soluble homogeneous catalyst component comprising, e.g. a complex of a divalent metal selected from the group consisting of nickel, cobalt and iron, and a second soluble homogeneous catalyst component comprising, e.g. an organoaluminum compound, at rates such that the molar catalyst feed ratio of said aluminum to said divalent metal is maintained at a first value during the pre-conditioning and startup period and at a second, higher, value during the operating period.