Patents by Inventor Gilbert Sapaly

Gilbert Sapaly 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 levulinic acid esters
    Patent number: 9464025
    Abstract: A method for preparing at least one ester of levulinic acid from a biomass includes steps of impregnating the biomass by an organic or inorganic acid, and putting the acidified biomass in contact with a supercritical fluid including at least one olefin.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 11, 2016
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE CLAUDE BERNARD LYON 1
    Inventors: Nadine Essayem, Gilbert Sapaly, Marion Eternot, Franck Rataboul
  • Method for obtaining compositions of biosolvents by esterification and obtained compositions of biosolvents
    Patent number: 9255218
    Abstract: A method for synthesizing a composition comprising at least one acid ester stemming from the biomass and an organic biosolvent is provided. The method comprises the esterification reaction between at least one acid stemming from the biomass and at least one alcohol, in the presence of an acid catalyst and of the organic biosolvent, the organic biosolvent being selective of the ester or of the esters formed relatively to the acid or to the starting acids and non-miscible with the alcoholic solution of the acid stemming from the biomass.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: February 9, 2016
    Assignees: INSTITUT VIETNAMIEN DE CHIMIE INDUSTRIELLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S), UNIVERSITÉ CLAUDE BERNARD LYON 1
    Inventors: Nadine Essayem, Gilbert Sapaly, Thi Thu Ha Vu, Thi Thu Trang Nguyen, Thi Thuy Ha Nguyen
  • METHOD FOR PREPARING LEVULINIC ACID ESTERS
    Publication number: 20150203435
    Abstract: A method for preparing at least one ester of levulinic acid from a biomass includes steps of impregnating the biomass by an organic or inorganic acid, and putting the acidified biomass in contact with a supercritical fluid including at least one olefin.
    Type: Application
    Filed: June 28, 2013
    Publication date: July 23, 2015
    Inventors: Nadine Essayem, Gilbert Sapaly, Marion Eternot, Franck Rataboul
  • 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 OBTAINING COMPOSITIONS OF BIOSOLVENTS BY ESTERIFICATION AND OBTAINED COMPOSITIONS OF BIOSOLVENTS
    Publication number: 20130105738
    Abstract: A method for synthesizing a composition comprising at least one acid ester stemming from the biomass and an organic biosolvent is provided. The method comprises the esterification reaction between at least one acid stemming from the biomass and at least one alcohol, in the presence of an acid catalyst and of the organic biosolvent, the organic biosolvent being selective of the ester or of the esters formed relatively to the acid or to the starting acids and non-miscible with the alcoholic solution of the acid stemming from the biomass.
    Type: Application
    Filed: March 3, 2011
    Publication date: May 2, 2013
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S)
    Inventors: Nadine Essayem, Gilbert Sapaly, Thi Thu Ha Vu, Thi Thu Trang Nguyen, Thi Thuy Ha Nguyen
  • 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