Title:
METHOD FOR RECOVERING PRECIOUS METALS AND COPPER FROM LEACH SOLUTIONS
Document Type and Number:
Japanese Patent JP2017160543
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a process for recovering a precious metal from a pregnant leach solution using a resin extractant.SOLUTION: The precious metal is eluted from the loaded resin using an eluant comprising trithionate. The barren resin is contacted with a sulfide, hydrosulfide and/or polysulfide to convert sorbed trithionate to thiosulfate. The desorbed thiosulfate is contacted with an oxidant and converted to trithionate for eluant recycle.SELECTED DRAWING: Figure 1
Inventors:
CHOI YEONUK
WANG QIANKUN
JOHN WILLIAM LANGHANS JR
WANG QIANKUN
JOHN WILLIAM LANGHANS JR
Application Number:
JP2017093742A
Publication Date:
September 14, 2017
Filing Date:
May 10, 2017
Export Citation:
Assignee:
BARRICK GOLD CORP
International Classes:
C22B3/42; C22B11/00
Domestic Patent References:
| JP2014516019A | 2014-07-07 |
Foreign References:
| US6344068B1 | 2002-02-05 | |||
| US20110011216A1 | 2011-01-20 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Atsushi Honda
Hironobu Onda
Atsushi Honda