| abstract |
The invention concerns a method for manufacturing a lubricity additive for internal combustion engine fuel, in particular for diesel fuel. This additive is derived, in particularly directly, from the esterification of acid oils. Such acid oils are derived, in particular, from the acidification of a soapstock obtained by a method for refining, preferably a method for chemically refining, in particular a method for saponifying one or more oil or oils chosen from a vegetable oil and/or an animal oil. The lubricity additive according to the invention is more particularly intended for fuels having a low sulfur content, for example less than 500 ppm (by weight). |