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. 07, 1997
Filed:
Nov. 01, 1995
Applicant:
Inventors:
Yves Chauvin, Le Pecq, FR;
Francoise Di Marco-Van Tiggelen, Nanterre, FR;
Assignee:
Institut Francais Du Petrole, Rueil Malmaison, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585646 ; 585643 ; 585645 ;
Abstract
The invention concerns a catalytic olefin disproportion (also known as metathesis) process wherein the catalyst produced by dissolving a tungsten and/or molybdenum compound, more particularly a tungsten and/or molybdenum halide substituted with one or more phenoxo groups containing at least two hydrocarbon substituents in the ortho, ortho' positions, in a medium produced by mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminium halide, and an organometallic aluminium compound.