Title:
マンガン及びニッケルの分離方法
Document Type and Number:
Japanese Patent JP7378058
Kind Code:
B2
Abstract:
To provide a method for separating manganese and nickel in which manganese and nickel can be separated from a material containing lithium metal oxide containing manganese and nickel safer and at a lower cost than conventional ones.SOLUTION: A method for separating manganese and nickel from a material containing lithium metal oxide containing manganese and nickel comprises a leaching process in which hydrothermal organic acid leaching treatment is performed to the material by using aqueous solution complex-forming organic acid, in which the leaching process includes: (a) a process of setting the temperature of the aqueous solution to 65°C or higher and 85°C or lower, and leaching the manganese from the material into the aqueous solution; and (b) a process of setting the temperature of the aqueous solution to higher than 85°C and 110°C or lower, and leaching the nickel from a solid obtained by performing liquid phase separation to the aqueous solution having passed the process (a) into the aqueous solution.SELECTED DRAWING: Figure 2
Inventors:
Ken Watanabe
Daiki Higashi
smith richard lee jr.
Hideki Miyazaki
Daiki Higashi
smith richard lee jr.
Hideki Miyazaki
Application Number:
JP2019151440A
Publication Date:
November 13, 2023
Filing Date:
August 21, 2019
Export Citation:
Assignee:
Tohoku University
Keiwa Kogyo Co., Ltd.
Keiwa Kogyo Co., Ltd.
International Classes:
C22B23/00; B09B5/00; C22B3/16; C22B7/00; C22B47/00
Domestic Patent References:
| JP2021507111A | ||||
| JP2009289553A |
Foreign References:
| CN108913873A | ||||
| CN108432031A | ||||
| KR1020120128913A | ||||
| KR1020130138491A | ||||
| US20190024211 |
Attorney, Agent or Firm:
Patent Attorney Corporation Dorait International Patent Office
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