Patents by Inventor Rodrigo Lopes De Souza

Rodrigo Lopes De Souza 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 the isomerisation of glucose into fructose
    Patent number: 9963477
    Abstract: The invention relates to a method for the isomerization of glucose into fructose in water in the presence of a solid base catalyst characterized by its reversibility of CO2 adsorption at a low temperature, the catalyst being a catalyst comprising at least one supported or non-supported lanthanide oxide or a molecular sieve based on silicon containing the organic template thereof. The invention also relates to a method for preparing HMF from glucose, comprising the isomerization of glucose into fructose.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: May 8, 2018
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE CLAUDE BERNARD LYON I
    Inventors: Nadine Essayem, Rodrigo Lopes De Souza, Franck Rataboul, Cyril Feche, Dilson Cardoso, Demian Patrick Fabiano
  • Method for producing 5-hydroxymethylfurfural
    Patent number: 9238635
    Abstract: The invention relates to a method for preparing 5-hydroxymethylfurfural (HMF) by reacting hexose in water and in the presence of carboxylic acid. The present invention further relates to the preparation of 5-hydroxymethylfurfural (HMF) by reacting hexose in water and in the presence of carboxylic acid and of a heterogenous acid catalyst. The invention also relates to an HMF-rich carboxylic acid solution.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: January 19, 2016
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE CLAUDE BERNARD LYON 1
    Inventors: Nadine Essayem, Rodrigo Lopes De Souza, Franck Rataboul
  • Method for the Isomerisation of Glucose into Fructose
    Publication number: 20150126731
    Abstract: The invention relates to a method for the isomerisation of glucose into fructose in water in the presence of a solid base catalyst characterised by its reversibility of CO2 adsorption at a low temperature, the catalyst being a catalyst comprising at least one supported or non-supported lanthanide oxide or a molecular sieve based on silicon containing the organic template thereof. The invention also relates to a method for preparing HMF from glucose, comprising the isomerisation of glucose into fructose.
    Type: Application
    Filed: August 24, 2012
    Publication date: May 7, 2015
    Applicants: Université Claude Bernard Lyon 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S)
    Inventors: Nadine Essayem, Rodrigo Lopes De Souza, Franck Rataboul, Cyril Feche, Dilson Cardoso, Demian Fabiano
  • Method for Producing 5-Hydroxymethylfurfural
    Publication number: 20140121389
    Abstract: The invention relates to a method for preparing 5-hydroxymethylfurfural (HMF) by reacting hexose in water and in the presence of carboxylic acid. The present invention further relates to the preparation of 5-hydroxymethylfurfural (HMF) by reacting hexose in water and in the presence of carboxylic acid and of a heterogenous acid catalyst. The invention also relates to an HMF-rich carboxylic acid solution.
    Type: Application
    Filed: May 16, 2012
    Publication date: May 1, 2014
    Applicants: Université Claude Bernard Lyon 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)
    Inventors: Nadine Essayem, Rodrigo Lopes De Souza, 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 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