The invention relates to a method for converting ricinoleic acid that comprises the following successive stages: a) fermentation of ricinoleic acid by a bacterium, a yeast or a fungus, in order to obtain 7-hydroxy-9-octadecenedioic diacid,b) the esterification of the 7-hydroxy-9-octadecenedioic diacid obtained in-stage during step a), in order to form the corresponding methyl diester,c) high-temperature cracking of the product obtained during step b), in order to form a mixture of methyl undecylenate and methyl 7-oxoheptanoate,d) separating the methyl undecylenate and methyl 7-oxoheptanoate obtained in step c),e) hydrolysing the methyl undecylenate obtained in step d), for forming the undecylenic acid.

Title
Method for the coproduction of methyl 7-oxoheptanoate and undecylenic acid from ricinoleic acid
Application Number
12/678617
Publication Number
20100203600
Application Date
September 17, 2008
Publication Date
August 12, 2010
Inventor
Jean Luc Dubois
Agent
Patent Department 26th Floor
PA, US
Arkema
PA, US
Assignee
Arkema France
IPC
C12P 07/64
C12P 13/00
View Original Source