公开(公告)号：EP3271487A1

公开(公告)日：2018-01-24

申请号：EP16712942.8

申请日：2016-03-18

申请人： Outotec (Finland) Oy

发明人： KABUGO, James ,  PAATERO, Erkki

IPC分类号： C22B3/26 ,  C22B3/30 ,  C22B3/00

CPC分类号： C22B3/24 ,  B01D15/02 ,  B01D2215/029 ,  B01F13/1011 ,  B01F17/0042 ,  B01F2215/0036 ,  B01J20/06 ,  B01J20/14 ,  B01J20/16 ,  B01J20/20 ,  B01J2219/00029 ,  B01J2219/00033 ,  C07C249/08 ,  C07C249/14 ,  C22B3/0005 ,  C22B3/0017 ,  C22B3/0021 ,  C22B3/12 ,  C22B23/04 ,  Y02P10/234

摘要： The invention relates to a method for regenerating the extractive potential of an organic hydroxyoxime-based extraction solution used in the recovery of metals by liquid-liquid extraction. The method is two-stage, in which a solid hydroxylamine is used in the reaction stage, and the removal of the undesirable compounds generated in the reaction occurs in the second stage by adsorption purification. The method of the invention is suitable for treatment of degraded oxime metal extractants in various process organic solutions both in aldehyde and ketoxime extractant solutions. The method can also be used to treat a mixture of degraded oxime extractants.

公开(公告)号：EP3271487B1

公开(公告)日：2019-06-26

申请号：EP16712942.8

申请日：2016-03-18

申请人： Outotec (Finland) Oy

发明人： KABUGO, James ,  PAATERO, Erkki

IPC分类号： C22B3/26 ,  C22B3/30 ,  C22B3/00 ,  B01D15/02 ,  B01F13/10 ,  B01J20/06 ,  B01J20/14 ,  B01J20/16 ,  B01J20/20 ,  B01F17/00 ,  C07C249/08 ,  C07C249/14 ,  C22B3/12 ,  C22B3/24