专利检索 ap:("INEOS STYROLUTION GROUP GMBH") AND inv:"Petra INGHELBRECHT" 第 1 页

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发明申请
PROCESS FOR DE-POLYMERIZATION OF STYRENIC MONOMER-CONTAINING POLYMERS AND FOR RETRIEVAL OF STYRENIC MONOMERS 有权

公开(公告)号：US20220081372A1

公开(公告)日：2022-03-17

申请号：US17419063

申请日：2020-01-07

申请人： INEOS STYROLUTION GROUP GMBH

发明人： 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分类号： C07C4/22 , C08J11/12 , C07C7/04 , C10B53/07 , B01D3/14 , B01D3/42

摘要： 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.