Patents by Inventor Stephane Loridant
Stephane Loridant 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).
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Patent number: 9447009Abstract: A method of preparing acrolein from glycerol or glycerine is disclosed. The method includes dehydrating glycerol or glycerine in the presence of a catalyst consisting of at least (a) a mixed oxide of zirconium and at least one metal, said metal being selected from niobium, tantalum and vanadium, or (b) a zirconium oxide and at least one metal oxide, the metal being selected from niobium, tantalum and vanadium, or (c) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, or (d) a titanium oxide and a mixed oxide of zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon.Type: GrantFiled: August 27, 2013Date of Patent: September 20, 2016Assignees: ADISSEO FRANCE S.A.S., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Virginie Belliere-Baca, Stephane Loridant, Jean-Marc Millet, Pascaline Lauriol-Garbey
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Patent number: 9187395Abstract: The disclosure concerns a method for preparing acrolein from glycerol, according to which a dehydration of the glycerol is carried out in the presence of a catalyst MWOA, wherein MWO represents a mixture of simple oxides and/or mixed oxides of tungsten and at least one metal M selected among zirconium, silicon, titanium, aluminium and yttrium, and A represents one or several Lewis base(s), one said Lewis base being of the formula B(R1)p(R2)q(R3)r, wherein B is an element selected among C, S, P, O, N and halides, R1, R2 and R3 represent, independently of each other, H, a C1-C6 alkyl group, O, OH or OR wherein R represents a C1-C6 alkyl group, and the sum of p, q and r varies from 0 to 4.Type: GrantFiled: October 29, 2013Date of Patent: November 17, 2015Assignees: ADISSEO FRANCE S.A.S., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARDInventors: Raja Znaiguia, Jean-Marc Millet, Stéphane Loridant, Patrick Rey
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Publication number: 20150239815Abstract: The disclosure concerns a method for preparing acrolein from glycerol, according to which a dehydration of the glycerol is carried out in the presence of a catalyst MWOA, wherein MWO represents a mixture of simple oxides and/or mixed oxides of tungsten and at least one metal M selected among zirconium, silicon, titanium, aluminium and yttrium, and A represents one or several Lewis base(s), one said Lewis base being of the formula B(R1)p(R2)q(R3)r, wherein B is an element selected among C, S, P, O, N and halides, R1, R2 and R3 represent, independently of each other, H, a C1-C6 alkyl group, O, OH or OR wherein R represents a C1-C6 alkyl group, and the sum of p, q and r varies from 0 to 4.Type: ApplicationFiled: October 29, 2013Publication date: August 27, 2015Inventors: Raja Znaiguia, Jean-Marc Millet, Stéphane Loridant, Patrick Rey
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Patent number: 9079841Abstract: The invention concerns a method for preparing acrolein from glycerol or glycerine, wherein dehydration of the glycerol or glycerine is achieved in the presence of a catalyst based on zirconium oxide and which active phase consists in at least a) a silicon oxide, a zirconium oxide and at least one metal M oxide, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and titanium, b) a titanium oxide, a zirconium oxide and at least one metal M oxide, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and silicon. This method can be used for making 3-(methylthio)propionic aldehyde MMP, 2-hydroxy-4-methylthiobutyronitrile HMTBN, methionine and its analogs.Type: GrantFiled: June 16, 2011Date of Patent: July 14, 2015Assignees: ADISSEO FRANCE S.A.S., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Pascaline Lauriol-Garbey, Virginie Belliere-Baca, Stéphane Loridant, Jean-Marc Millet
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Publication number: 20140171676Abstract: A method of preparing acrolein from glycerol or glycerine is disclosed. The method includes dehydrating glycerol or glycerine in the presence of a catalyst consisting of at least (a) a mixed oxide of zirconium and at least one metal, said metal being selected from niobium, tantalum and vanadium, or (b) a zirconium oxide and at least one metal oxide, the metal being selected from niobium, tantalum and vanadium, or (c) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, or (d) a titanium oxide and a mixed oxide of zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon.Type: ApplicationFiled: August 27, 2013Publication date: June 19, 2014Applicants: Centre National De La Recherche Scientifique, Adisseo France S.A.SInventors: Virginie BELLIERE-BACA, STEPHANE LORIDANT, JEAN-MARC MILLET, PASCALINE LAURIOL-GARBEY
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Publication number: 20130197258Abstract: The invention concerns a method for preparing acrolein from glycerol or glycerine, wherein dehydration of the glycerol or glycerine is achieved in the presence of a catalyst based on zirconium oxide and which active phase consists in at least a) a silicon oxide, a zirconium oxide and at least one metal M oxide, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and titanium, b) a titanium oxide, a zirconium oxide and at least one metal M oxide, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and silicon. This method can be used for making 3-(methylthio)propionic aldehyde MMP, 2-hydroxy-4-,methylthiobutyronitrile HMTBN, methionine and its analogs.Type: ApplicationFiled: June 16, 2011Publication date: August 1, 2013Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ADISSEO FRANCE S.A.S.Inventors: Pascaline Lauriol-Garbey, Virginie Belliere-Baca, Stéphane Loridant, Jean-Marc Millet
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Publication number: 20110288323Abstract: The invention relates to a method for preparing acrolein from glycerol or glycerine, comprising dehydrating glycerol or glycerine in the presence of a catalyst consisting of at least a) a mixed oxide of zirconium and at least one metal, said metal being selected from niobium, tantalum and vanadium, b) a zirconium oxide and at least one metal oxide, the metal being selected from niobium, tantalum and vanadium, c) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, d) a silicon oxide and a mixed oxide of zirconium and at least one metal, the metal being selected from tungsten, cerium, manganese, niobium, tantalum, vanadium and titanium, e) a titanium oxide and a mixed oxide of zirconium and at least one metal, said metal being selected from tungsten, cerium, manganese, niobium, tantalum, titanium, vanadium and silicon, f) a titanium oxide and a mixed oxide or zirconium and at least onType: ApplicationFiled: December 16, 2009Publication date: November 24, 2011Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, ADISSEO FRANCE S.A.SInventors: Virginie Belliere-Baca, Stephane Loridant, Jean-Marc Millet, Pascaline Lauriol-Garbey
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Patent number: 7851401Abstract: The invention concerns solids comprising a single tungsten oxide layer on a zirconia support and/or titanium dioxide support, characterized in that the tungsten exhibits tetrahedral co-ordination, before and after calcining. The invention also concerns the method for preparing the solids, and their uses as acid catalysis reactions catalyst.Type: GrantFiled: July 1, 2003Date of Patent: December 14, 2010Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Francois Figueras, Nadine Essayem, Cyril Feche, Stephane Loridant, Jorge Palomeque, Georges Gelbard
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Publication number: 20060091045Abstract: The invention concerns solids comprising a single tungsten oxide layer on a zirconia support and/or titanium dioxide support, characterized in that the tungsten exhibits tetrahedral co-ordination, before and after calcining. The invention also concerns the method for preparing the solids, and their uses as acid catalysis reactions catalyst.Type: ApplicationFiled: July 1, 2003Publication date: May 4, 2006Inventors: Francois Figueras, Nadine Essayem, Cyril Feche, Stephane Loridant, Jorge Palomeque, Georges Gelbard