Valagro Carbone Renouvelable Poitou-Charentes

Centre National De La Recherche Scientifique

Université De Poitiers

Arkema France

Gerflor

Centre National De La Recherche Scientifique-Cnrs

Jacques Barbier

Frederic Bataille

Thierry Ferreira

Cedric Dever

Alexandre Briand

Jean-Luc Dubois

Antoine Piccirilli

Julien Magne

Robert Hinault

Stephane Soum

Lê Chiên Hoang

Cédric Dever

Frédéric Bataille

Stéphane Soum

The present invention relates to a process for preparing a polymer/biological entities alloy, comprising a step of mixing a polymer and biological entities that degrade it, during a heat treatment, said heat treatment being performed at a temperature T above room temperature and said biological entities being resistant to said temperature T, characterized in that said biological entities are chosen from enzymes that degrade said polymer and microorganisms that degrade said polymer.

Process for preparing a polymer/biological entities alloy

A recycled textile cotton used for producing ethanol by the execution of a process that includes a step of pretreatment of textile cotton by pulping in an extruder, which may or may not involve a grinding step prior to pulping in the extruder, a step of enzymatic hydrolysis, a step of filtration(s), and a step of fermentation.

Process for producing ethanol from textile cotton

A process for producing from a lignocellulosic raw material of (i) an intermediate product that is intended for the production of ethanol, containing polysaccharides, cellulose and hemicelluloses, and (ii) a product containing lignin in an aqueous solution without sulfur residue, this lignin could be precipitated. The process includes a step of pulping the raw material in an extruder at a temperature of between 60&#xb0; C. and 180&#xb0; C. and in the presence of a quantity of water that represents between 200% and 450% of the mass of said raw material and in the presence of a strong base at a concentration of between 0.5% and 4% relative to the volume of water.

Process for the production of an intermediate product intended for the production of ethanol and for the production of lignin

The invention relates to a method for the selective extraction of functionalised fatty acid esters from seeds of oleaginous plants, wherein said method includes: a) at least one step of extracting fatty acid esters that comprises simultaneously feeding into a reactor containing said seeds a light anhydrous alcohol, a basic catalyst and an extraction solvent non-miscible with said light alcohol and in which said functionalised fatty ester is not soluble in order to obtain a mixture of esters and glycerol; b) and at least one step of selectively extracting hydroxylated fatty acid esters by feeding into the reactor said extraction solvent in a backflush direction relative to the light alcohol in order to obtain an alcohol phase enriched with fatty acid esters, a glycerol phase and a cake. The invention can be used for obtaining a fraction having a high concentration of hydroxylated or epoxydised functionalised fatty acid esters, and a solvent phase containing the other non-functionalised fatty acid esters directly from the seeds of oleaginous plants.

Method for obtaining a fraction enriched with functionalized fatty acid esters from seeds of oleaginous plants

At least one esterified fatty acid, particularly a fatty acid from tall oil that undergoes a Diels-Alder reaction or a fatty acid from oleic sunflower oil that undergoes an epoxydation reaction, is used as a PVC plasticizer, particularly for floor coverings.

Esterified fatty acids for PVC plasticization

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Montamise, France

Jacques Barbier