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Title:
METHOD FOR MANUFACTURING METHYLMERCAPTOPROPIONALDEHYDE AND METHIONINE USING RENEWABLE RAW MATERIALS
Document Type and Number:
WIPO Patent Application WO/2010/058129
Kind Code:
A3
Abstract:
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 obtain a flux of acrolein containing at least 15 wt % of water relative to the acrolein; (c) causing a reaction of the acrolein flux obtained in step (b) with methylmercaptan in the presence of a catalyst; (d) optionally purifying the product obtained in step (c). The method of the invention can also include a reaction of the product obtained in step (c) or (d) with hydrocyanic acid, or sodium cyanide during a step (e) followed by a subsequent transformation to produce methionine or methionine hydroxyanalogue, which can then optionally be purified. The additional use of methylmercaptan and/or hydrocyanic acid derived from biomass as raw materials in the method according to the invention makes it possible to obtain MMP, methionine or methionine hydroxyanalogue made up of 100 % organic carbon from renewable sources.

Inventors:
DEVAUX, Jean-François (39 rue du Stade, Soucieu en Jarrest, Soucieu en Jarrest, F-69510, FR)
DUBOIS, Jean-Luc (190 rue du Coteau, Millery, Millery, F-69390, FR)
Application Number:
FR2009/052220
Publication Date:
July 15, 2010
Filing Date:
November 19, 2009
Export Citation:
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Assignee:
ARKEMA FRANCE (420 rue d'Estienne d'Orves, Colombes, Colombes, F-92700, FR)
DEVAUX, Jean-François (39 rue du Stade, Soucieu en Jarrest, Soucieu en Jarrest, F-69510, FR)
DUBOIS, Jean-Luc (190 rue du Coteau, Millery, Millery, F-69390, FR)
International Classes:
C07C45/52; A23K1/16; C07C47/22; C07C319/18; C07C319/20; C07C323/22; C07C323/52; C07C323/58; C07D233/76
Domestic Patent References:
WO2006087083A22006-08-24
WO2006087084A22006-08-24
Foreign References:
EP1408029A12004-04-14
FR1526355A1968-05-24
US20080183019A12008-07-31
US20080119663A12008-05-22
US5770769A1998-06-23
Attorney, Agent or Firm:
PRAS, Jean-Louis (Arkema France, Departement Propriete Industrielle42, rue d'Estienne d'Orves Colombes Cedex, F-92705, FR)
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