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. 22, 2014
Filed:
May. 05, 2009
Nadine Essayem, Saint Just Chaleyssin, FR;
Rodrigo Lopes DE Souza, Rio de Janeiro, BR;
Berna Hamad, Villeurbanne, FR;
Gilbert Sapaly, Lyons, FR;
Paulo Gustaro Pries DE Oliveira, Rio de Janeiro, BR;
Wilma Gonzalez, Rio de Janeiro, BR;
Nadine Essayem, Saint Just Chaleyssin, FR;
Rodrigo Lopes de Souza, Rio de Janeiro, BR;
Berna Hamad, Villeurbanne, FR;
Gilbert Sapaly, Lyons, FR;
Paulo Gustaro Pries de Oliveira, Rio de Janeiro, BR;
Wilma Gonzalez, Rio de Janeiro, BR;
Centre National de la Recherche Scientifique (C.N.R.S.), Paris, FR;
Universite Claude Bernard Lyon I., Villeurbanne, FR;
Abstract
The invention relates to a method of preparing a mixture of biofuels comprising fatty acid esters and at least one mixture of glycerol ethers from fatty substances that may contain free fatty acids and ethanol comprising: a) a step of transesterification of a vegetable or animal oil by ethanol in the presence of a catalyst based on at least one alkali metal salt or ammonium heteropolyacid salt characterized by differential heat of adsorption of ammonia which is greater than or equal to 150 kJ/mol, stable at T>150.degree. C., in order to obtain fatty acid esters and glycerol, and, b) a step of etherification of the glycerol formed during step a) by the alcohol used in step a) in the presence of the catalyst from step a) in order to obtain at least one ether of the glycerol, said steps a) and b) taking place simultaneously, in one and the same reactor.