INTEGRATED SOLVENT EXTRACTION/MEMBRANE EXTRACTION WITH RETENTATE RECYCLE FOR IMPROVED RAFFINATE YIELD

摘要

It enhances the production of raffinate from the solvent extraction, when subjected to extract (5) recovered from the solvent extraction process (2) a step of separating membrane (6) in which a product is retentate (8) rich in monocyclic aromatics / saturates and a permeate (7) rich in pluricycliques bicyclic or aromatic, and is recycled next attempt the phase rich in monocyclic aromatic / saturated compounds for the solvent extraction process.