Title:
METHOD FOR RECOVERING NICKEL, COBALT, AND MANGANESE, AND METHOD FOR PRODUCING VALUABLE METAL
Document Type and Number:
WIPO Patent Application WO/2024/057736
Kind Code:
A1
Abstract:
Provided is a method for recovering nickel, cobalt, and manganese from a compound including metal oxides of nickel, cobalt, and manganese in which the concentration of manganese in recovered materials is kept low while increasing the concentrations of nickel and cobalt. The method for recovering nickel, cobalt, and manganese includes: a mixing step in which a reducing agent and a compound containing metal oxides of nickel, metal oxides of cobalt, and metal oxides of manganese are mixed and a mixture is produced; and a heating step in which the mixture is heated to obtain a first product and a second product having a higher concentration of manganese than the first product. In the mixing step, one or more substances selected from among carbon reducing agents containing carbon as a component thereof, silicon reducing agents containing silicon as a component thereof, and aluminum reducing agents containing aluminum as a component thereof are used as the reducing agent, and the reducing agent is used in an amount satisfying a predetermined range.
Inventors:
INOUE YOTARO (JP)
HINO YUTA (JP)
TAKAHASHI KATSUNORI (JP)
HINO YUTA (JP)
TAKAHASHI KATSUNORI (JP)
Application Number:
PCT/JP2023/027515
Publication Date:
March 21, 2024
Filing Date:
July 27, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C22B5/02; C22B3/06; C22B3/26; C22B5/04; C22B5/10; C22B7/00; C22B23/02; C22B47/00; H01M10/54
Domestic Patent References:
| WO2021177200A1 | 2021-09-10 |
Foreign References:
| JP2019131871A | 2019-08-08 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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