公开(公告)号：EP3126049A4

公开(公告)日：2017-11-29

申请号：EP15773386

申请日：2015-04-02

申请人： UNIV VANDERBILT ,  TECHNION RES & DEV FOUNDATION

发明人： KOVLER KONSTANTIN ,  DASHEVSKY BORIS ,  KOSSON DAVID SAMUEL ,  RECHES YONATHAN

IPC分类号： C01F11/00 ,  B01J35/00

CPC分类号： C01F11/468 ,  B01D9/00 ,  B01D37/00 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2006/44 ,  C01P2006/80

摘要： Methods and systems that remove impurities from phosphogypsum (PG), including from radium and heavy metal salts, and produce gypsum binders and products. In one embodiment, PG is reacted with a chloride solution in an acidic environment under mechanical manipulation and/or heat followed by galvanic and/or zeolite absorption removal of impurities.