Title:
GOLD RECOVERY METHOD, AND GOLD PRODUCTION METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2013/108478
Kind Code:
A1
Abstract:
The purpose of the present invention is to efficiently recover gold in metal sulfide ores at low cost. This gold recovery method uses an acidic leaching solution including a chloride ion and/or a bromide ion as an anion and copper and iron as a cation, and includes: a step for heating and leaching gold from a base metal sulfide ore into the acidic leaching solution; a step for causing the adsorption of gold in the acidic leaching solution onto activated carbon; and a step for obtaining a concentrated gold solution by eluting with an alkaline solution the gold adsorbed onto the activated carbon.
Inventors:
HATANO KAZUHIRO (JP)
KATSUKAWA KOJI (JP)
ONO EIKI (JP)
SANO MASAKI (JP)
KATSUKAWA KOJI (JP)
ONO EIKI (JP)
SANO MASAKI (JP)
Application Number:
PCT/JP2012/079856
Publication Date:
July 25, 2013
Filing Date:
November 16, 2012
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP (JP)
International Classes:
C22B11/00; B01D15/00; B01J20/20; B01J20/34; C02F1/28; C22B3/24
Foreign References:
| JPH07508073A | 1995-09-07 | |||
| JPH03177521A | 1991-08-01 | |||
| JPS5118991A | 1976-02-14 |
Attorney, Agent or Firm:
AXIS Patent International (JP)
Axis international patent business corporation (JP)
Axis international patent business corporation (JP)
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