公开(公告)号：WO2020144165A1

公开(公告)日：2020-07-16

申请号：PCT/EP2020/050185

申请日：2020-01-07

Applicant: INEOS STYROLUTION GROUP GMBH

Inventor： NIESSNER, Norbert ,  WILHELMUS, Bianca ,  KERSCHBAUMER, Hannes ,  VERSWYVEL, Michiel ,  INGHELBRECHT, Petra ,  COCHRAN, Thomas W. ,  SHON, KyungHo ,  ABBOUD, Mohammed ,  CUETOS, Ricardo ,  SCHWABEN, Hans-Dieter ,  KATHMANN, Jens ,  URQUHART, Thad ,  BROWN, Timothy A. ,  WONG, Tim ,  DE VET, Walter ,  SCHMIDT, Hans-Werner ,  SCHEDL, Andreas ,  KOLB, Tristan

IPC: C07C7/04 ,  C07C15/067 ,  C08J11/12 ,  C08L25/06 ,  C10B53/07

Abstract: The invention relates to an improved process for providing purified styrenic monomers, such as styrene, from styrene-containing polymer waste. Styrene-containing waste is depolymerized in a suitable reactor, and the depolymerization products are condensed and separated in a three-step distillation process.