| 摘要 |
The aim of the invention is to produce a bioresourced acrylic acid from glycerol, that is a bioresourced acrylic acid essentially based on a carbon source of natural origin, meeting all quality criteria of the monomers generally used as raw materials in methods for the polymerisation of acrylic acid and the esters thereof, by means of an economical method. The method according to the invention comprises a final step of extraction of acrylic acid by fractional crystallisation applied to one of the effluents from the purification chain of the acrylic acid, the localisation of said final step depending on the initial load processed, the nature and source of the glycerol used in the method, purity specifications to be reached for the final acrylic acid, and economic criteria. |
