Title:
METHOD FOR RECOVERING VALUABLE METAL
Document Type and Number:
WIPO Patent Application WO/2021/205903
Kind Code:
A1
Abstract:
The purpose is to provide a method for recovering a valuable metal at low cost. The present invention is a method for recovering a valuable metal, the method comprising a step of preparing a burden material containing at least a valuable metal to obtain a raw material, a step of subjecting the raw material to an oxidation treatment and a reductive melting treatment to produce a reduced product containing an alloy and a slug, and a step of separating the slug from the reduced product to collect the alloy, in which the copper grade, which is a ratio of the mass of copper (Cu) to the total mass of nickel (Ni), cobalt (Co) and copper (Cu) contained in the alloy (i.e., a Cu/(Ni+Co+Cu) ratio), is adjusted to 0.250 or more.
Inventors:
HAGIO TOMOYA (JP)
YAMASHITA YU (JP)
YAMASHITA YU (JP)
Application Number:
PCT/JP2021/012823
Publication Date:
October 14, 2021
Filing Date:
March 26, 2021
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
B09B3/00; B09B5/00; C22B1/02; C22B5/10; C22B7/00; C22B15/00; C22B23/02; H01M10/54
Foreign References:
| JP2013091826A | 2013-05-16 | |||
| JP2012172169A | 2012-09-10 | |||
| JP2017509786A | 2017-04-06 | |||
| JP2019094536A | 2019-06-20 | |||
| JP5853585B2 | 2016-02-09 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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