Title:
METHOD FOR TREATING ORE OR REFINING INTERMEDIATE
Document Type and Number:
WIPO Patent Application WO/2021/085023
Kind Code:
A1
Abstract:
Provided is a method for treating a gold-containing ore or a gold-containing refining intermediate produced by subjecting the ore to a refining treatment, the method comprising: a leaching step of leaching gold out from the ore or the refining intermediate using a sulfuric acid solution containing an iodide ion and an iron (III) ion as a leaching solution; an adsorption step of adsorbing iodine and gold in a post-leaching solution produced in the leaching step onto active carbon; and an iodine separation step of separating iodine from the active carbon while leaving gold in the active carbon that has been subjected to the adsorption step.
Inventors:
FUKANO ARIKANE (JP)
UENISHI NARITAKA (JP)
MAKINO KOUDAI (JP)
UENISHI NARITAKA (JP)
MAKINO KOUDAI (JP)
Application Number:
PCT/JP2020/037292
Publication Date:
May 06, 2021
Filing Date:
September 30, 2020
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP (JP)
International Classes:
C22B11/00; C22B3/08; C22B3/24; C22B15/00
Foreign References:
| JP2015196847A | 2015-11-09 | |||
| JP2006241506A | 2006-09-14 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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