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. 28, 2020
Filed:
Jul. 26, 2016
Ifp Energies Nouvelles, Rueil-Malmaison, FR;
Pierre-Alain Breuil, Lyons, FR;
Olivia Chaumet-Martin, Brignais, FR;
IFP Energies Nouvelles, Rueil-Malmaison, FR;
Abstract
A process for the dimerization of ethylene to 1-butene, carried out with a catalytic composition comprising: at least one nickel precursor with an oxidation number of (+II), at least one phosphine ligand with formula PRRRin which the groups R, Rand Rmay be identical or different and which may or may not be bonded together, and at least one activating agent selected from the group formed by chlorinated and brominated hydrocarbylaluminium compounds, used alone or as a mixture, the composition having a molar ratio of the phosphine ligand to the nickel precursor in the range 5 to 30 and a molar ratio of the activating agent to the phosphine ligand greater than or equal to 1.