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. 08, 2014
Filed:
Nov. 10, 2009
Jean-francois Devaux, Soucieu En Jarrest, FR;
Georges Martino-gauchi, Lyons, FR;
Patrice Iafrate, Roquevaire, FR;
Patricia Balouin, Chateaunneuf sur-Isere, FR;
Thibault Balouin, Pont Sainte Maxence, FR;
Jeremie Balouin, Val de Reull, FR;
Jean-Francois Devaux, Soucieu En Jarrest, FR;
Georges Martino-Gauchi, Lyons, FR;
Jean-Yves Balouin, Chateauneuf Sur Isere, FR;
Patrice Iafrate, Roquevaire, FR;
Arkema France, Colombes, FR;
Abstract
The present invention relates to a method for the transesterification of a hydroxylated oil including two consecutive transesterification steps performed in the presence of a light alcohol (methanol or ethanol) and a basic catalyst under temperature, pressure and alcohol/oil weight ratio conditions enabling the nearly total conversion of the hydroxylated oil into fatty acid esters. Characteristically, a resulting directly from the first transestrefication step in order to obtain a reaction mixture including, in particular, hydroxylated fatty acid esters and glycerol. Said reaction mixture is subjected to a separation step that makes it possible to obtain a less dense phase predominantly consisting of fatty esters and a denser phase predominantly consisting of glycerol and water and fatty acid soaps. The second transesterification step is performed on the less dense phase, with said light alcohol and said basic catalyst are added thereto.