| abstract |
The present invention relates to a process for metathesis of olefin (s). The method according to the invention comprises contacting at least one fatty acid ester or a fatty acid with a metathesis catalyst, said fatty acid ester or fatty acid comprising at least one unsaturation, in which the ester or the fatty acid is treated with a sorbent before it comes into contact with the metathesis catalyst, the sorbent being maintained in the reaction medium when the ester or fatty acid is brought into contact with the catalyst. metathesis. |