公开(公告)号：EP2504459A4

公开(公告)日：2016-09-07

申请号：EP10831212

申请日：2010-11-22

申请人： OUTOTEC OYJ

发明人： RUONALA MIKKO ,  SVENS KURT ,  ARPALAHTI ANTTI ,  LEPISTÖ KAROLIINA

IPC分类号： C22B3/46 ,  C01G9/06 ,  C22B3/00 ,  C22B19/20

CPC分类号： C22B19/22 ,  C01G9/06 ,  C22B3/46 ,  C22B19/26 ,  Y02P10/234

摘要： The invention relates to a method for removing chloride from zinc sulphate solution in conjunction with zinc production. According to the method, the chloride is removed from solution by means of monovalent copper, which is produced in a separate copper(I) oxide formation stage, in which the pH is regulated to the region of 4.5-5.