Patents by Inventor Wilma Gonzalez

Wilma Gonzalez has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for preparing a mixture of biofuels
    Patent number: 8704003
    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.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: April 22, 2014
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Universite Claude Bernard Lyon I.
    Inventors: Nadine Essayem, Rodrigo Lopes de Souza, Berna Hamad, Gilbert Sapaly, Paulo Gustaro Pries de Oliveira, Wilma Gonzalez
  • Method for Preparing a Mixture of Biofuels
    Publication number: 20110146137
    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 absorption of ammonia which is greater than or equal to 150 kJ/mol, stable at T>150° 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.
    Type: Application
    Filed: May 5, 2009
    Publication date: June 23, 2011
    Inventors: Nadine Essayem, Rodrigo Lopes De Souza, Berna Hamad, Gilbert Sapaly, Paulo Pries De Oliveira, Wilma Gonzalez