Title:
METHOD FOR SMELTING NICKEL-CONTAINING OXIDE ORE
Document Type and Number:
WIPO Patent Application WO/2024/018692
Kind Code:
A1
Abstract:
Provided is a method for smelting nickel-containing oxide ore for which the generated amount of CO2 is reduced and the nickel recovery rate is high. The present invention is a method for smelting nickel-containing oxide ore, comprising: a hydrogen reduction step S3 in which a reduction treatment is carried out while supplying hydrogen, as a reducing agent, to a raw material including nickel-containing oxide ore; a melting step S4 for carrying out a melting treatment on the reduced product obtained by the reduction treatment; and a recovery step S5 for separating slag from the melted product obtained by the melting treatment and recovering metal including nickel. Also, the method preferably further includes a pelletizing step in which the raw material including nickel-containing oxide ore is pelletized. The pelletized raw material is subjected to the reduction treatment in the hydrogen reduction step.
Inventors:
YAMASHITA YU (JP)
TAKAHASHI JUNICHI (JP)
TAKAHASHI JUNICHI (JP)
Application Number:
PCT/JP2023/013179
Publication Date:
January 25, 2024
Filing Date:
March 30, 2023
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B23/02; C22B1/02; C22B1/14; C22B5/12
Foreign References:
| JPS4736129B1 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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