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. 29, 2007
Filed:
Feb. 10, 2006
Lionel Magna, Rueil Malmaison, FR;
Hélène Olivier-bourbigou, Rueil Malmaison, FR;
Lucien Saussine, Croissy sur Seine, FR;
Virginie Kruger-tissot, Malakoff, FR;
Lionel Magna, Rueil Malmaison, FR;
Hélène Olivier-Bourbigou, Rueil Malmaison, FR;
Lucien Saussine, Croissy sur Seine, FR;
Virginie Kruger-Tissot, Malakoff, FR;
Institut Francais du Petrole, Rueil-Malmaison Cedex, FR;
Abstract
A process for hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst is carried out in a non-aqueous ionic liquid which is a liquid at a temperature below 90° C. and comprises at least one ammonium and/or phosphonium and/or sulfonium cation Qand at least one anion A; catalyst recycling is improved by using a ligand selected from the group consisting of Lewis bases and employing a depressurization step between the pressurized reaction step and the step for separating the phases by decanting. At the end of said depressurization step, the organic phase is separated in the decanting step and the non-aqueous ionic liquid containing the catalyst can be re-used.