公开(公告)号：US20230383088A1

公开(公告)日：2023-11-30

申请号：US18249479

申请日：2021-10-14

Applicant: INEOS STYROLUTION GROUP GMBH

Inventor： Norbert NIESSNER ,  Bianca WILHELMUS ,  Hannes KERSCHBAUMER ,  Hans-Werner SCHMIDT ,  Tristan KOLB ,  Andreas SCHEDL

IPC: C08J11/12 ,  C08J11/16 ,  C08L25/06 ,  C08K5/02 ,  C08K3/22 ,  C07C4/22

CPC classification number: C08J11/12 ,  C08J11/16 ,  C08L25/06 ,  C08K5/02 ,  C08K3/22 ,  C07C4/22 ,  C08J2325/06 ,  C08J2333/12 ,  C08K2003/2217 ,  C08K2003/2206

Abstract: The invention relates to a process for depolymerization of polymer compositions with decomposition of halogen-containing organic compounds, wherein the polymer composition contains at least one styrene-containing polymer and at least one halogen-containing organic compound. The addition of one or more inorganic basic compounds in the depolymerization simultaneously promotes the decomposition of the halogen-containing organic compound and favors the depolymerization.

公开(公告)号：US20220081372A1

公开(公告)日：2022-03-17

申请号：US17419063

申请日：2020-01-07

Applicant: INEOS STYROLUTION GROUP GMBH

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

IPC: C07C4/22 ,  C08J11/12 ,  C07C7/04 ,  C10B53/07 ,  B01D3/14 ,  B01D3/42

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.