Process for co-producing olefins and diesters or diacids by homomethathesis of unsaturated fats in non-aqueous ionic liquids
AssigneeInstitut Francais du Petrole
InventorsHelene Olivier-Bourbigou, Gerard Hillion, Christophe Vallee
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Abstract
A process is described in which an unsaturated fat is reacted in a homometathesis reaction in the presence of at least one non-aqueous ionic liquid to produce both an olefinic fraction and a composition of monoalcohol diesters or diacids. Particular application to a mixture of esters of an oleic sunflower seed oil or an oleic rapeseed oil, the process producing both an olefinic fraction and a composition of monoalcohol diesters or diacids wherein, in general, more than half of its chains is constituted by unsaturated C18 chains.
Claims23
A process for producing both an olefinic fraction and a composition of diesters or diacids, characterized in that it comprises carrying out a homometathesis reaction on at least one fat comprising at one monobasic carboxylic acid containing 12 to 22 carbon atoms and comprising at least one ethylenically unsaturated bond or a monoester of said monoacid in the presence of a catalyst and in the presence of at least one non-aqueous ionic liquid.
Dependencies are inferred from the claim text.