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Jean-luc Dubois
Jean Luc Couturier, Jean Luc Dubois, Xiaowei Miao, Cedric Fischmeister, Christian Bruneau, Pierre Dixneuf: Process for preparing saturated amino acids or saturated amino esters comprising a metathesis step. ARKEMA FRANCE, UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Millen White Zelano & Branigan P C, August 4, 2015: US09096490 (1 worldwide citation)

The subject matter of the invention is a process for synthesizing a saturated long-chain α,ω-amino ester (acid) obtained in a first step by cross-metathesis between an acrylic first compound and a monounsaturated second compound comprising at least one nitrile, acid or ester trivalent function, one ...


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Jean-luc Dubois
Yasuhiro Magatani, Kimito Okumura, Jean Luc Dubois, Jean Francois Devaux: Catalyst and process for preparing acrolein and/or acrylic acid by dehydration reaction of glycerin. ARKEMA FRANCE, Millen White Zelano & Branigan P C, October 20, 2015: US09162954

A catalyst composition comprising at least an heteropolyacid deposited on a porous titania carrier. A catalyst composition comprising at least an heteropolyacid in which protons in the heteropolyacid may be partially exchanged by at least one cation selected from elements belonging to Group 1 to Gro ...


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Jean-luc Dubois
Jean Luc Dubois, Stephanie Serreau, Fabienne Desdevises: Process for the preparation of acrylic acid comprising a partial oxidation of propane to propylene. Arkema France, Millen White Zelano & Branigan P C, June 8, 2010: US07732639

The invention relates to a method for preparing acrylic acid by oxidizing propylene and then acrolein, involving the recycling of gases that had not reacted by means of a partial oxidation of the propane, in parallel, at the end of the acrylic acid recovery step, then returning, to the propylene-con ...


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Jean-luc Dubois
Jean Luc Dubois, Antoine Piccirilli, Julien Magne: Process for the purification of a fatty acid alkyl ester by liquid/liquid extraction. Arkema France, Millen White Zelano & Branigan P C, August 26, 2014: US08816108

The present invention relates to a process for the selective extraction of monoglycerides present in a fraction of fatty acid alkyl esters (FAAEs), comprising at least one stage of liquid-liquid extraction by means of a polar solvent (PS) comprising a light alcohol and optionally of a nonpolar solve ...


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Jean-luc Dubois
Jean Luc Dubois: Method for synthesizing acrolein from glycerol. Arkema France, Millen White Zelano & Branigan P C, April 1, 2014: US08686195

The present invention relates to a process for synthesizing acrolein, coupling the dehydration of glycerol into acrolein with a reaction for aldol condensation of acetaldehyde, produced in the form of an impurity during the dehydration, by means of formaldehyde. More particularly, the process accord ...


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Jean-luc Dubois
Jean Luc Couturier, Jean Luc Dubois: Bio-based glutaralydehyde, and manufacture methods thereof. Arkema France, Millen White Zelano & Branigan P C, July 15, 2014: US08779213

The present invention relates to a bio-based glutaraldehyde compound and to the different non-fossil, natural raw material manufacture methods thereof. To prepare said compound, glycerol created by the methanolysis of vegetable oil or animal fat is used, leading after dehydration to acrolein that is ...


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Jean-luc Dubois
Jean Luc Dubois: Method for producing acrolein by means of dehydration of glycerol. Arkema France, Millen White Zelano & Branigan P C, December 4, 2012: US08324432

The invention relates to a method for the synthesis of acrolein by means of dehydration of the glycerol in the presence of a solid acid catalyst having a Hammett acidity of less than +2, such as sulfated zirconium oxides, phosphated zirconium oxides, tungstated zirconium oxides, silicated zirconium ...


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Arnaud Baudot
Laurent Bournay, Arnaud Baudot: Process for producing fatty acid alkyl esters and glycerol of high-purity. Institut Francais du Petrole, Millen White Zelano & Branigan P C, November 21, 2006: US07138536 (14 worldwide citation)

In a process for producing fatty acid alkyl esters and glycerol comprising at least one reaction stage in which a charge comprising a vegetable and/or animal oil and an alcohol are brought into contact, in the presence of a heterogeneous catalyst, so as to obtain an effluent comprising at least alky ...


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Arnaud Baudot
Patrick Briot, Arnaud Baudot, Vincent Coupard, Alain Methivier: Process for improving gasoline cuts and conversion into gas oils. IFP Energies Nouvelles, Millen White Zelano & Branigan P C, December 7, 2010: US07847141 (5 worldwide citation)

The invention relates to a process for converting a hydrocarbon charge of linear and branched olefins, comprises the following stages: a) a stage of membrane separation of the hydrocarbon charge under conditions making it possible to produce a cut β containing the majority of the linear olefins pres ...



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