Centre National De La Recherche Scientifique

Ecole Centrale De Lille

Université De Lille

Adisseo France Sas

Université Des Sciences Et Technologies De Lille 1

Rhodia Operations

Hokkaido University

Alma Mater Studiorum-Universitá Di Bologna

Université Lille 1 - Sciences Et Technologies

Pivert

Universite Lille-1

National Institute

Universite Des Sciences Et Technologies D

Sébastien Paul

Franck Dumeignil

Benjamin Katryniok

Marcia Araque Marin

Fabrizio Cavani

Floryan Decampo

Virginie Belliere-Baca

Wataru Ueda

Fabien Grasset

Wenhao Fang

Jean-Marc Clacens

Louise Duhamel

Guillaume Raffa

Yoshihiro Kon

Lei Zhang

Carsten Liebig

Wolfgang Holderich

Francesco Santarelli

Cyrille Guillon

Veronique Rataj

Stephane Pariente

Thomas Bonnotte

Nouria Fatah

Mickael Capron

Toru Murayama

Robert Wojcieszak

Simon Desset

Véronique Rataj

Stéphane Pariente

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 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 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 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

A continuous process for obtaining acrolein by catalytic dehydration of glycerol or glycerin, in the presence of an acid catalyst, wherein said process comprises the concomitant regeneration of said catalyst and is carried out in a fluidized bed reactor, said reactor comprising two zones, a first zone, or lower zone, termed catalyst regeneration zone, in which a fluidization gas comprising oxygen is introduced, and a second zone, or upper zone, termed reaction zone, in which the glycerol or glycerin is introduced and converted into acrolein.

Process for obtaining acrolein by catalytic dehydration of glycerol or glycerin

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

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Thun Saint Amand, France

Sébastien Paul