PROCESS FOR PURIFYING A CRUDE ISOPRENE, APPLICABLE TO THE PRODUCTION OF POLYISOPRENE USEFUL AS SYNTHETIC RUBBER

摘要

P The invention relates to a process for purifying a crude isoprene comprising polymerization inhibiting materials such as acetylenes and sulfur compounds to obtain high purity isoprene which can be subjected to polymerization. /P P Said process consists of distilling the crude isoprene in the presence of at least one saturated hydrocarbon containing 6 to 8 carbon atoms, extracting the polymerization inhibiting materials as an overhead fraction and obtaining the isoprene purified as a tail fraction. /P P Application to the production of polyisoprene. /P