Patents by Inventor Flora Chambon

Flora Chambon 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).

  • Patent number: 9475786
    Abstract: A method for selective hydrogenation of furan-2,5-dialdehyde (DFF) into 2,5-di(hydroxymethyl)furan (DHMF) and into 2,5-di(hydroxymethyl)tetrahydrofuran (DHMTHF). In relation to the prior art, which uses C6 sugars or 5-hydroxymethyl furaldehyde (5-HMF) as raw materials, the method can be performed at low temperatures (lower than 120° C., preferably 80° C.), while consuming low amounts of catalyst relative to the initial reagent (in particular less than 5%, preferably less than 2% relative to the weight of the reagent). The heterogeneous catalyst used can also be recycled from one reaction to another. Finally, the choice of experimental conditions enables the selective formation of DHMF or DHMTHF.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: October 25, 2016
    Assignee: ROQUETTE FRERES
    Inventors: Mathias Ibert, Flora Chambon, Laurent Dambrine
  • Patent number: 9388152
    Abstract: A method for synthesizing 2,5-furandicarboxylic acid (FDCA) from furan-2,5-dialdehyde (DFF). The method is industrially applicable due to the simplicity and availability of the reagents used, and due to the experimental conditions on which the method is based: the method requires low temperatures and enables a reaction under atmospheric pressure, the reaction times being relatively short. Furthermore, the method does not lead to the formation of salts that need to be treated downstream from the method, and the catalytic ratio relative to the initial product is particularly low.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: July 12, 2016
    Assignee: ROQUETTE FRERES
    Inventors: Mathias Ibert, Flora Chambon, Laurent Dambrine
  • Publication number: 20150274687
    Abstract: A method for synthesizing 2,5-furandicarboxylic acid (FDCA) from furan-2,5-dialdehyde (DFF). The method is industrially applicable due to the simplicity and availability of the reagents used, and due to the experimental conditions on which the method is based: the method requires low temperatures and enables a reaction under atmospheric pressure, the reaction times being relatively short. Furthermore, the method does not lead to the formation of salts that need to be treated downstream from the method, and the catalytic ratio relative to the initial product is particularly low.
    Type: Application
    Filed: September 26, 2013
    Publication date: October 1, 2015
    Inventors: Mathias Ibert, Flora Chambon, Laurent Dambrine
  • Publication number: 20150252015
    Abstract: A method for selective hydrogenation of furan-2,5-dialdehyde (DFF) into 2,5-di(hydroxymethyl)furan (DHMF) and into 2,5-di(hydroxymethyl)tetrahydrofuran (DHMTHF). In relation to the prior art, which uses C6 sugars or 5-hydroxymethyl furaldehyde (5-HMF) as raw materials, the method can be performed at low temperatures (lower than 120° C., preferably 80° C.), while consuming low amounts of catalyst relative to the initial reagent (in particular less than 5%, preferably less than 2% relative to the weight of the reagent). The heterogeneous catalyst used can also be recycled from one reaction to another. Finally, the choice of experimental conditions enables the selective formation of DHMF or DHMTHF.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 10, 2015
    Inventors: Mathias Ibert, Flora Chambon, Laurent Dambrine
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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