公开(公告)号：EP2627792B1

公开(公告)日：2018-12-05

申请号：EP11832187.6

申请日：2011-10-07

申请人： OUTOTEC (FINLAND) OY

发明人： SALMINEN, Justin ,  RIIHIMÄKI, Teppo ,  RUONALA, Mikko

IPC分类号： C22B58/00 ,  C22B41/00 ,  C22B3/46 ,  C25C1/16 ,  C22B3/44 ,  C22B3/00

CPC分类号： C22B58/00 ,  C22B3/44 ,  C22B3/46 ,  C22B19/16 ,  C22B19/26 ,  C22B41/00 ,  Y02P10/234

摘要： The invention relates to a method for treating a solution containing zinc sulphate, so that at least one of the rare metals such as indium, gallium and germanium can be separated from it. A portion of the metals to be separated can be precipitated from zinc sulphate solution by neutralizing the acidic solution and at least a portion is cemented by means of metal powder. The solid precipitates that are formed can be combined and treated subsequently in some suitable way to leach out the desired metals.