Abstract: The subject matter of the present invention relates to a vaporization method of aqueous glycerol solutions in a fluidized bed containing an inert solid. The invention provides a method for vaporizing, in a single step, an aqueous glycerol solution and simultaneously eliminating the impurities present in this solution or generated during the evaporation.

Abstract: 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.

Abstract: The invention provides a technology for producing acrolein from glycerol while maintaining high reagent partial pressures, which leads to higher yield. The invention more particularly relates to a method for producing acrolein from glycerol that comprises the intermediate step of forming glycerol and acrolein cyclic acetals.

Abstract: The present invention relates to a method for preparing ricinoleic acid ester from a pure or mixed vegetable oil, in particular castor oil, wherein the method includes at least the step of enzymatic transesterification in the presence of a light alcohol and using a typo-selective lipase in order to obtain a fraction enriched with ricinoleic acid ester. The method according to the invention for producing ricinoleic acid ester includes the steps: i) a first transesterification reaction in the presence of a light alcohol and a lipase extracted from Geotrichum candidum, in order to obtain a mixture M containing AR mono-, di- and triglycerides, fatty acid esters other than AR, alcohol; ii) the step of separating said mixture M into at least two fractions, including a fraction A enriched with AR glycerides, and a fraction B enriched with fatty acid esters other than RA; iii) the step of converting said AR glycerides into AR esters consisting of a fraction C rich in AR esters and a fraction rich in alcohols.

Abstract: The invention relates to a polymer of core-shell structure containing a core having at least one elastomeric polymer, with a glass transition temperature of less than 25° C., and a shell having at least one polymer, with a glass transition temperature of greater than 25° C., where at least one of the polymers includes (meth)acrylic acid ester monomers containing organic carbon derived from biomass. The present invention also relates to a process for preparing the core-shell polymers and to their use as impact additives, and to a composition containing them.

Abstract: The present application relates to a process for the manufacture of copolymers of ethylene and of at least one vinyl ester, comprising the following steps: a) fermentation of renewable starting materials so as to produce at least one alcohol comprising ethanol; b) dehydration of the alcohol obtained so as to produce at least one alkene comprising ethylene and, optionally, purification of the alkene so as to obtain ethylene, c) copolymerization of the ethylene with at least one vinyl ester, d) isolation of the copolymer obtained. The application also relates to the copolymers of ethylene and of at least one vinyl ester in which the ethylene is at least partly obtained from renewable starting materials, and to uses thereof.

Abstract: The present invention relates to a novel composition, for nontherapeutic purposes, containing at least one POM (PolyOxyMethylene dialkyl ether) and at least one diol. It also relates to the use of this composition for preserving and/or embalming a human or animal body.

Abstract: A process for converting glycerin into valuable chemical raw material. A catalyst for use in the production of acrolein and acrylic acid by a dehydration reaction of glycerin, which enables the production of acrolein and acrylic acid in high yield. Glycerin dehydration catalyst which mainly comprises a phosphorus-vanadium complex oxide that contains phosphorus and vanadium as the essential constituent elements.

Abstract: The invention relates to an aviation fuel containing between 1 and 100 wt.-% of a fraction of a compound obtained by means of chemical transformation from renewable, natural optionally-hydroxylated monounsaturated fatty acids having a chain length at least equal to 14 carbon atoms, selected from among nitriles and medium fatty acid esters containing between 7 and 12 carbon atoms per molecule and between 0 and 99 wt.-% of a kerosene originating from petrol that meets global aviation fuel specifications.

Abstract: The present application relates to a process for manufacturing maleic anhydride that comprising the following steps: a) fermentation of renewable raw materials and optionally purification to produce a mixture comprising at least butanol; b) oxidation of the butanol to maleic anhydride at a temperature generally between 300° C. to 600° C., using a catalyst based on oxides of vanadium and/or molybdenum; c) isolation of the maleic anhydride obtained at the end of step b). It also relates to the maleic anhydride obtained from renewable raw materials, to the copolymers and compositions comprising said maleic anhydride and also uses of use of this maleic anhydride.

Abstract: The invention relates to methyl methacrylate characterized in that at least one portion of the carbons thereof is biologically sourced and, more specifically, in that it contains between 0.2×10?10 and 1.2×10?10 wt.-% of 14C in relation to total carbon weight according to the ASTM D6866 standard. The preparation method comprises the use of acetone cyanohydrin as a raw material, said acetone cyanohydrin being obtained by condensing cyanohydric acid on acetone, and the methyl methacrylate is prepared using a process involving the addition of methanol. According to the invention, at least one from among the acetone, cyanohydric acid and methanol is obtained by means of a reaction or series of reactions involving the biomass.

Abstract: A subject of the invention is a compound of formula (I) XCFzR3-z in which: in which X represents a branched or linear unsaturated hydrocarbon radical having up to 5 carbon atoms, unsubstituted or substituted, R represents Cl, F, Br, I or H, Z is equal to 1, 2 or 3, and the bio-carbon content of which is at least 1%. A subject of the invention is also processes for the preparation of this compound.

Abstract: The present application relates to a method for manufacturing a propylene polymer, including: a) fermenting and optionally purifying first renewable materials to produce an alcohol or an alcohol mixture, the alcohol or alcohol mixture including at least isopropanol and/or at least a mixture of ethanol and 1-butanol; b) dehydrating the resulting alcohol or the alcohol mixture to produce an alkene or alkene mixture in a first series of reactors, the alkene or alkene mixture containing at least propylene; c) polymerizing the propylene in a second reactor, optionally in the presence of a comonomer, so as to produce a propylene polymer; d) isolating the propylene polymer obtained in step c); and e) grafting the propylene polymer obtained from step d). The invention also relates to the grafted propylene polymer capable of being obtained by the method, to the compositions containing the polymer, as well as to the uses of the polymer.

Abstract: The invention relates to a method for synthesizing ?-aminoalkanoic acids or esters thereof from unsaturated natural fatty acids, passing through a monounsaturated dinitrile intermediate compound. The method of the invention is simple to carry out and, compared to other known methods, avoids the environmental constraints and economic disadvantages due to reaction by-products.

Abstract: Process for the manufacture of methyl methacrylate by oxidation of methacrolein to methacrylic acid and esterification of the latter with methanol, characterized in that at least one fraction of at least one from among methacrolein and methanol in this reaction was obtained by a reaction or a sequence of reactions starting from biomass.

Abstract: Process for the manufacture of methyl methacrylate by reaction of methyl propionate with one from formaldehyde, a formaldehyde/methanol mixture and methylal, characterized in that at least a fraction of at least one reactant involved in this reaction was obtained by a reaction or a sequence of reactions starting from biomass.

Abstract: The present application relates to a process for the manufacture of copolymers of ethylene and of at least one vinyl ester, comprising the following steps: a) fermentation of renewable starting materials so as to produce at least one alcohol comprising ethanol; b) dehydration of the alcohol obtained so as to produce at least one alkene comprising ethylene and, optionally, purification of the alkene so as to obtain ethylene, c) copolymerization of the ethylene with at least one vinyl ester, d) isolation of the copolymer obtained. The application also relates to the copolymers of ethylene and of at least one vinyl ester in which the ethylene is at least partly obtained from renewable starting materials, and to uses thereof.

Abstract: The present invention relates to a method for preparing an aqueous solution of hydrogen peroxide from oxygen, hydrogen and optionally water. The invention more particularly relates to a method for preparing an aqueous solution of hydrogen peroxide in which at least a portion of the reactor is cooled down to a temperature lower than 15° C.

Abstract: The invention relates to a process for the manufacture of vinyl chloride monomer comprising the preparation of acetylene from one or more renewable starting materials and then the reaction of the acetylene with hydrogen chloride in order to form vinyl chloride monomer. The invention also relates to the vinyl chloride monomer obtained and to its use.

Abstract: The present invention relates to a synthesis process of polyol carbonate, such as glycerol carbonate, from polyols such as glycerol, propylene glycol or ethylene glycol and urea conducted in using a solvent selective for polyols (glycerol) carbonates. Said process comprises reacting polyol with urea in the presence of a catalyst, extracting produced NH3 and in addition in the presence in the course of at least one step of the process of a selective solvent for polyol carbonate allowing to extract it from the reaction medium.