1
Jean-luc Dubois
Jean François Devaux, Jean Luc Dubois: Method for manufacturing methylmercaptopropionaldehyde and methionine using renewable raw materials. Arkema France, Smith Gambrell & Russell, May 27, 2014: US08735631 (1 worldwide citation)

The present invention relates to a method for manufacturing methylmercaptopropionaldehyde (MMP) including at least the following steps: (a) dehydrating glycerol to acrolein from an aqueous solution of glycerol in the presence of an acid catalyst; (b) purifying the aqueous flux from step (a) to obtai ...


2
Jean-luc Dubois
Jean Luc Dubois: Method for synthesising omega-amino-alkanoic acids or the esters thereof from natural fatty acids. Arkema France, Smith Gambrell & Russell, February 19, 2013: US08377661 (1 worldwide citation)

The invention relates to a method for synthesizing ω-amino-alkanoic acids or the esters thereof from mono-unsaturated natural fatty acids comprising at least one step of forming the unsaturated diacid corresponding to the original fatty acid.


3
Jean-luc Dubois
Jean Luc Dubois: Methods for the synthesis of fatty diacids by the metathesis of unsaturated diacids obtained by fermentation of natural fatty acids. Arkema France, Smith Gambrell & Russell, May 5, 2015: US09023626 (1 worldwide citation)

The invention relates to a method for the synthesis of diacids of general formula ROOC—(CH2)n—(CH═CH)a—(CH2)mCOOR1 in which n and m are identical or different and each represent an integer such that their sum is between 6 and 15, a is an index of 0 or 1, and R and R1 are H or an alkyl radical with 1 ...


4
Jean-luc Dubois
Jean Luc Dubois: Method for the synthesis of omega-amino-alkanoic acids. Arkema France, Smith Gambrell & Russell, February 4, 2014: US08642792 (1 worldwide citation)

The invention relates to a method for the synthesis of amino acids/esters of general formula NH2—(CH2)n—COOR in which n is an integer between 5 and 14, and R is either H or an alkyl radical including from 1 to 4 carbon atoms, from natural long-chain mono-unsaturated fatty acids or esters including a ...


5
Jean-luc Dubois
Jean Luc Dubois: Method for synthesizing an ω-amino acid or ester from a monounsaturated fatty acid or ester. Arkema France, Smith Gambrell & Russell, April 15, 2014: US08697401 (1 worldwide citation)

The invention relates to a method for synthesizing ω-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 envi ...


6
Jean-luc Dubois
Jean Luc Dubois: Biofuel consisting of a mixture of naturally occurring fatty acid esters and method for producing said biofuel. Arkema France, Smith Gambrell & Russell, August 26, 2014: US08814959 (1 worldwide citation)

The invention relates to a diesel biofuel consisting of a mixture of naturally occurring fatty acid esters and containing an ester of ω-unsaturated acids having a chain with 11 or 13 carbon atoms or corresponding saturated acids. The invention also relates to a method for producing such a biofuel.


7
Jean-luc Dubois
Jean Luc Dubois: Method for synthesising 9-aminononanoic acid or the esters thereof from natural unsaturated fatty acids. Arkema France, Smith Gambrell & Russell, May 28, 2013: US08450509 (1 worldwide citation)

The invention relates to a method for synthesizing 9-aminononanoic acid or the esters thereof from natural unsaturated fatty acids, comprising at least one step of metathesis of the natural fatty acid and an oxidation step by oxidative cleaving. Said synthetic method uses widely available renewable ...


8
Jean-luc Dubois
Jean Luc Dubois: Method for the synthesis of diacids or diesters from natural fatty acids and/or esters. Arkema France, Smith Gambrell & Russell, January 27, 2015: US08940923 (1 worldwide citation)

Disclosed herein a process for the synthesis of diacids or diesters of general formula ROOC—(CH2)x-COOR, in which n represents an integer between 5 and 14 and R is either H or an alkyl radical of 1 to 4 carbon atoms, starting from long-chain natural monounsaturated fatty acids or esters comprising a ...


9
Jean-luc Dubois
Jean Luc Dubois: Method for the synthesis of dialkoxy alkanes by means of the selective oxidation of alcohols. Arkema France, Smith Gambrell & Russell, December 23, 2014: US08916730

The invention relates to a method for the synthesis of dialkoxyalkanes by means of the partial selective oxidation of a light alcohol. According to said method, the light alcohol is oxidized in the presence of molecular oxygen or a gas containing molecular oxygen, and a solid oxidation catalyst base ...


10
Jean-luc Dubois
Jean Luc Dubois: Method for producing dialkoxy alkanes by partial oxidation of lower alcohols in the presence of a catalyst based on molybdenum and iron. ARKEMA FRANCE, Smith Gambrell & Russell, September 29, 2015: US09145349

Disclosed herein is a method for producing alkoxy alkanes by direct partial oxidation of a lower alcohol with a catalyst based upon mixed oxide containing molybdenum and at least one other metal selected from the metals that can assume a trivalent oxidation state such as Fe, Bi, Al, Cr, In, La, Sb, ...



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