Title:
METHOD FOR RECOVERING VALUABLE METAL
Document Type and Number:
WIPO Patent Application WO/2022/009742
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method whereby an oxygen partial pressure required for the melting of a raw material can be controlled accurately and thereby a valuable metal can be recovered more efficiently. Provided is a method for recovering a valuable metal (Cu, Ni, Co), the method comprising a step for providing, as a raw material, a charge material comprising at least phosphorus (P) and the valuable metal, a step for melting the raw material by heating to produce a melt and subsequently converting the melt into a melted product comprising an alloy and a slag, and a step for separating the slag from the melted product to recover the alloy containing the valuable metal, in which the oxygen partial pressure in the melt is measured directly using an oxygen analyzer during the melting of the raw material by heating and the oxygen particle pressure is controlled on the basis of the result of the measurement.
Inventors:
YAMASHITA YU (JP)
NAGAKURA TOSHIHIKO (JP)
HAGIO TOMOYA (JP)
NAGAKURA TOSHIHIKO (JP)
HAGIO TOMOYA (JP)
Application Number:
PCT/JP2021/024638
Publication Date:
January 13, 2022
Filing Date:
June 29, 2021
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
B09B3/00; C22B7/00; C22B15/00; C22B23/02; H01M10/54
Foreign References:
| JP2017526820A | 2017-09-14 | |||
| JP2009041052A | 2009-02-26 | |||
| JP2019135321A | 2019-08-15 | |||
| JPH0242354B2 | 1990-09-21 | |||
| JP5853585B2 | 2016-02-09 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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