Patents by Inventor Franck Rataboul

Franck Rataboul 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 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 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 preparing furfural
    Patent number: 9090580
    Abstract: The invention relates to a method for preparing furfural by reacting pentose in water and in the presence of carboxylic acid and of a heterogeneous acid catalyst, the method being conducted in an aqueous solution of carboxylic acid as a reaction medium. The present invention also relates to the preparation of furfural by reaction of pentose in water and in the presence of carboxylic acid and of a heterogeneous acid catalyst. The invention also relates to an aqueous solution of carboxylic acid rich in furfural.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: July 28, 2015
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), UNIVERSITE CLAUDE BERNARD LYON I
    Inventors: Nadine Essayem, Rodrigo Lopez De Souza, Franck Rataboul, Aude-Claire Doiseau
  • 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 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
  • Process for converting cellulose or lignocellulosic biomass using stable non-zeolite solid Lewis acids based on tin or antimony alone or as a mixture
    Patent number: 9012682
    Abstract: The invention relates to a process for transformation of lignocellulosic biomass or cellulose using stable non-zeolitic heterogeneous catalysts that are based on tin and/or antimony, preferably dispersed on a substrate. The use of these catalysts makes it possible to obtain directly lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 21, 2015
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • Process for transformation of lignocellulosic biomass or cellulose by tungsten-oxide-based solid lewis acid catalysts and a metal that is selected from groups 8 to 11
    Patent number: 8877982
    Abstract: The invention relates to a process for transformation of lignoceliulosic biomass or cellulose that uses tungsten-oxide-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium and containing an element in the particular metallic state. The use of these catalysts makes it possible to obtain directly upgradable products containing three carbon atoms, in particular hydroxyacetone and propylene glycol with high selectivity.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: November 4, 2014
    Assignees: IFP Energies Nouvelles, Centre National de la Recherche Scientifique
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • Method for Preparing Furfural
    Publication number: 20140309440
    Abstract: The invention relates to a method for preparing furfural by reacting pentose in water and in the presence of carboxylic acid and of a heterogeneous acid catalyst, the method being conducted in an aqueous solution of carboxylic acid as a reaction medium. The present invention also relates to the preparation of furfural by reaction of pentose in water and in the presence of carboxylic acid and of a heterogeneous acid catalyst. The invention also relates to an aqueous solution of carboxylic acid rich in furfural.
    Type: Application
    Filed: August 24, 2012
    Publication date: October 16, 2014
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S), Université Claude Bernard Lyon 1
    Inventors: Nadine Essayem, Rodrigo Lopez De Souza, Franck Rataboul, Aude-Claire Doiseau
  • Process for transformation of lignocellulosic biomass or cellulose by catalysts based on tin oxide and/or antimony oxide and a metal that is selected from the groups 8 to 11
    Patent number: 8835694
    Abstract: The invention relates to a process for transformation of lignocellulosic biomass or cellulose using heterogeneous catalysts that are based on tin oxide and/or antimony oxide, dispersed on a substrate and containing at least one element in the particular metal state. The use of these catalysts makes it possible to obtain directly upgradable products, in particular hydroxyacetone and propylene glycol with high selectivity.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: September 16, 2014
    Assignees: Centre National de la Recherche Scientifique, IFP Energies Nouvelles
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • 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
  • Process for transformation of lignocellulosic biomass or cellulose by tungsten-based solid lewis acids
    Patent number: 8624058
    Abstract: The invention relates to a process for transformation of lignocellulosic biomass or cellulose that uses tungsten-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium. The use of these catalysts makes it possible to obtain directly lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: January 7, 2014
    Assignees: Centre National de la Recherche Scientifique, IFP Energies nouvelles
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • PROCESS FOR CONVERTING CELLULOSE OR LIGNOCELLULOSIC BIOMASS USING STABLE NON-ZEOLITE SOLID LEWIS ACIDS BASED ON TIN OR ANTIMONY ALONE OR AS A MIXTURE
    Publication number: 20130281734
    Abstract: The invention relates to a process for transformation of lignocellulosic biomass or cellulose using stable non-zeolitic heterogeneous catalysts that are based on tin and/or antimony, preferably dispersed on a substrate. The use of these catalysts makes it possible to obtain directly lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.
    Type: Application
    Filed: December 16, 2011
    Publication date: October 24, 2013
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • PROCESS FOR TRANSFORMATION OF LIGNOCELLULOSIC BIOMASS OR CELLULOSE BY CATALYSTS BASED ON TIN OXIDE AND/OR ANTIMONY OXIDE AND A METAL THAT IS SELECTED FROM THE GROUPS 8 TO 11
    Publication number: 20130281741
    Abstract: The invention relates to a process for transformation of lignocellulosic biomass or cellulose using heterogeneous catalysts that are based on tin oxide and/or antimony oxide, dispersed on a substrate and containing at least one element in the particular metal state. The use of these catalysts makes it possible to obtain directly upgradable products, in particular hydroxyacetone and propylene glycol with high selectivity.
    Type: Application
    Filed: December 16, 2011
    Publication date: October 24, 2013
    Applicants: IFP ENERGIES NOUVELLES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • PROCESS FOR TRANSFORMATION OF LIGNOCELLULOSIC BIOMASS OR CELLULOSE BY TUNGSTEN-OXIDE-BASED SOLID LEWIS ACID CATALYSTS AND A METAL THAT IS SELECTED FROM GROUPS 8 TO 11
    Publication number: 20130184496
    Abstract: The invention relates to a process for transformation of lignoceliulosic biomass or cellulose that uses tungsten-oxide-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium and containing an element in the particular metallic state. The use of these catalysts makes it possible to obtain directly upgradable products containing three carbon atoms, in particular hydroxyacetone and propylene glycol with high selectivity.
    Type: Application
    Filed: July 19, 2011
    Publication date: July 18, 2013
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, IFP ENERGIES NOUVELLES
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon
  • PROCESS FOR TRANSFORMATION OF LIGNOCELLULOSIC BIOMASS OR CELLULOSE BY TUNGSTEN-BASED SOLID LEWIS ACIDS
    Publication number: 20130053601
    Abstract: The invention relates to a process for transformation of lignocellulosic biomass or cellulose that uses tungsten-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium. The use of these catalysts makes it possible to obtain directly lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.
    Type: Application
    Filed: February 1, 2011
    Publication date: February 28, 2013
    Inventors: Flora Chambon, Nadine Essayem, Franck Rataboul, Catherine Pinel, Amandine Cabiac, Emmanuelle Guillon