PROCEDURE FOR THE RECOVERY OF POLY (VINYL CHLORIDE) FROM RESIDUAL PVC PASTA CONTAINING SOLVENTS.

摘要

THE REUSABLE REGENERATION OF POLYVINYL CHLORIDE CAN BE OBTAINED FROM PVC RESIDUAL PASTES CONTAINING SOLVENTS, EXPOSING THESE WITH A TWENTY PART OF THE WEIGHT OF THE PASTA WITH AQUILPOLIETILENGLICOL ESTER, AND AQUILPOLIETILENGLICOL THE SOLVENT THROUGH WATER VAPOR, SEPARATING THE TWO-PHASE DISTILL CONSTITUTED FROM THE SOLVENT AND FILTERING AND DRYING THE PVC GRANULATE THAT FLOATS IN THE WASTE OF WASTE.