Centre National De La Recherche Scientifique

Ecole Centrale De Lille

Université Des Sciences Et Technologies De Lille 1

Pivert

Université De Lille

Adisseo France Sas

Arkema France

Ifp Energies Nouvelles

Rhodia Operations

Hokkaido University

Alma Mater Studiorum-universitá Di Bologna

Université Lille 1 - Sciences Et Technologies

Universite Lille-1

National Institute of Advanced Industrial Science and Technology

Université Des Sciences Et Technologies De Lille

Franck Dumeignil

Sébastien Paul

Benjamin Katryniok

Mickaël Capron

Fabien Grasset

Elzbieta Skrzynska

Louise Duhamel

Marcia Araque Marin

Jean-Luc Dubois

Fabrizio Cavani

Floryan Decampo

Patrick Rey

Loic Rouleau

Wataru Ueda

Virginie Belliere-Baca

Pascal Blanchard

Edmond Payen

Wenhao Fang

Jean-Marc Clacens

Sébastien Royer

Francesco Santarelli

Christine Lancelot

Mickaeel Capron

Virginie Belliere-baca

Simon Desset

Yoshihiro Kon

Guillaume Raffa

Lei Zhang

Carsten Liebig

Mickael Capron

Toru Murayama

Robert Wojcieszak

Wolfgang Holderich

Cyrille Guillon

Veronique Rataj

Thomas Bonnotte

Marcia Araque

Pierre Miquel

Jérémy Faye

Véronique Rataj

Wolfgang HÖLDERICH

A method is for the preparation of furoic acid or of one of its derivatives of formula (I): in which R, R, Rand Rrepresent, independently of each other, a hydrogen atom, a linear or branched C-Calkyl group, a &#x2014;C(&#x2550;O)&#x2014;H group or a &#x2014;COOH group, by heterogeneous catalytic oxidation of furfural or a derivative thereof of formula (II). The oxidation is carried out in the presence of a supported catalyst based on gold nanoparticles, and in a non-alkaline aqueous medium. A composition useful in the method includes at least furfural and supported gold nanoparticles.

Furoic acid preparation method

The present invention relates to the use of rhenium-containing supported heterogeneous catalysts for the deoxydehydration of glycerol to allyl alcohol, as well as to a process for the production of allyl alcohol from glycerol, in the presence of such heterogeneous catalysts.

Use of rhenium-containing supported heterogenous catalysts for the direct deoxy-dehydrated of glycerol to allyl alcohol

The invention concerns a synthesis process of a compound of the following formula (I) or one of the salts thereof,  The invention also concerns the application of this reaction to the preparation of bioavailable compounds of methionine used, in particular, in animal nutrition.

Catalytic oxidation of but-3-ene-1,2-diol

The present invention relates to the use of haloapatites as catalysts of the dehydration reaction of &#x3b1;-hydroxylated carboxylic acids or acid esters, in particular of lactic acid or of methyl lactate, and also to a process for producing unsaturated carboxylic acids or acid esters, in particular acrylic acid or methyl acrylate, in the gas phase in a stainless steel reactor, in the presence of such a catalyst.

Production of unsaturated carboxylic acids or acid esters with a haloapatite-based catalyst

The present invention relates to the use of molybdenum and vanadium mixed oxides, optionally iron doped, as catalysts for the oxidation of unsaturated alcohols, in particular allyl alcohol, and also to a process for the production of unsaturated carboxylic acids, in particular acrylic acid, in the gas phase, in the presence of such a catalyst.

Use of molybdenum and vanadium mixed oxides as catalysts for the oxidation of unsaturated alcohols into unsaturated carboxylic acids

The present invention relates to a process for production of hydrogen at low temperature starting from alcohols without formation of carbon using an oxyhydride material based on cerium and nickel and to the use of such a material as catalyst for transformation of alcohols to hydrogen.

Process for production of hydrogen

A method for oxidation of glycerol into glyceric acid is described, which includes a step of treating glycerol with a supported metal catalyst in the presence of oxygen, said catalyst including platinum and a metal element selected from the group comprising tin, molybdenum, bismuth and a mixture thereof.

Supported metal catalyst and use thereof for selective oxidation of glycerol

A method for synthesising a second ester from a first ester, the method including the following steps: a) placing a first ester and a catalyst in the presence of dihydrogen such as to obtain a first alcohol and a second alcohol; b) extracting the second alcohol from the reaction medium; c) reacting the first alcohol with the catalyst of step a) in order to obtain a second ester and dihydrogen; and d) recirculating the dihydrogen obtained in step c) by injecting same into step a).

Method for synthesising esters

A compound of the formula SbFeO(I) in which x varies from 0.4 to 1 inclusive and y varies from 1.6 to 4 inclusive, may be used as a catalyst for catalyzing the ammoxidation reaction of an alcohol of following formula (II) CH&#x2550;C(R)&#x2014;CH&#x2014;OH (II) in which Rrepresents a hydrogen atom or a methyl radical, to give nitrile of following formula (III) CH&#x2550;C(R)&#x2014;C&#x2261;N (III) in which Rhas the same meaning as in above formula (II), the said reaction being carried out in the gas phase, the said gas phase comprising at least oxygen and ammonia. The present invention also relates to the process for the ammoxidation of an alcohol of formula (II) employing a compound of formula (I) as catalyst.

Process for the production of nitriles using a catalyst based on antimony and iron

The invention relates to a method for synthesizing glycolic acid or one of the salts thereof, including the following step: placing glycerol and an oxidizing agent in contact with one another in a reaction medium in the presence of a silver-based catalyst on a substrate, said substrate including a material selected from the group consisting of CeO, basic AlOoptionally doped with a calcium or cerium oxide, an amphoteric resin, ZrO, and a mixture of said materials. The invention also relates to the use of a silver-based catalyst on a substrate that can be used in said method.

Method for synthesising glycolic acid

The present invention concerns a process for the production of an aldehyde compound by an oxidation reaction of an alcohol compound in the presence of a mesostructured vanadium phosphorus mixed oxide catalyst, at a temperature comprised between 50&#xb0; C. and 200&#xb0; C., in presence of an oxidant. The reaction medium may also comprise a solvent.

Oxidation of alcohol compounds via mesostructured VPO catalysts

The present invention concerns a method for directly synthesizing acrolein or methacrolein from a mixture of methanol and ethanol or propanol. The method of the invention comprises two successive phases: oxidation in the presence of a selective oxidation catalyst of the light alcohols of the feedstock, then condensation by aldolization of the aldehydes formed during oxidation in the presence of a condensation catalyst (aldolization). Alternatively, the two phases can be carried out in the presence of a single catalyst, in particular in the presence of a molybdenum-based selective oxidation catalyst. These two phases can be conducted in a single reactor or in two cascade reactors.

Method for directly synthesizing unsaturated aldehydes from alcohol mixtures

The invention relates to a method for preparing acrolein from glycerol or glycerin, according to which dehydration of glycerol or glycerin is carried out in the presence of a catalyst which consists in at least one silica modified with zirconium dioxide, titanium dioxide or tungsten trioxide or any combination of these oxides, and a heteropolyacid. This method may be used for making 3-(methylthio)propionic aldehyde (MMP), 2-hydroxy-4-methylthiobutyronitrile (HMBTN), methionine or its analogs, from acrolein.

Method for preparing acrolein from glycerol by catalytic dehydration of glycerol using a heteropolyacid catalyst

A process for preparing a mesoporous alumina is described, comprising the following steps:

Process for preparing an alumina with controlled mesoporosity

Growing community of inventors

Fretin, France

Franck Dumeignil