A method for the recovery of products contain in the difficult to - by-products from their production

摘要

The present invention relates to a process for recovery of the compounds present in a mixture of heavy products; the said mixture of heavy products being obtained from a process for the preparation of one of the compounds that it is desired to recover. The process according to the invention consists in using a reaction stage / distillation at the end of which is obtained, on the one hand, the compounds mentioned above, and on the other hand, of residues. The characteristic of the method consisting in performing an operation of grinding of the residues obtained, prior to their destruction, and before they are masse.le process according to the invention is particularly suitable for the treatment of residues obtained during the manufacture of the phenol from cumene.