Title:
NICKEL RECOVERY METHOD
Document Type and Number:
Japanese Patent JP2023123944
Kind Code:
A
Abstract:
To provide a method for efficiently recovering nickel from a nickel solution containing a nickel compound produced in an organic chemical reaction process.SOLUTION: A nickel recovery method includes the following steps of: (a) preparing a nickel solution containing a nickel compound produced in an organic chemical reaction process; (b) adjusting the pH of the nickel solution to 3 or more; and (c) adding an alkali metal sulfide to the nickel solution whose pH has been adjusted to 3 or more to obtain a nickel sulfide precipitate. The nickel recovery method is suitable when the nickel solution contains a nickel halide. Further, the nickel recovery method is suitable when the nickel solution contains an organic solvent.SELECTED DRAWING: Figure 1
More Like This:
| WO/2023/054621 | METHOD FOR RECOVERING VALUABLE METAL FROM WASTE LITHIUM-ION BATTERY |
| WO/2020/137997 | VALUABLE METAL RECOVERY METHOD |
Inventors:
TOKORO CHIHARU
FUCHITA SHIGEJI
ISHII SHUN
YOKOTA NAOKI
TAKAHASHI YUKO
FUCHITA SHIGEJI
ISHII SHUN
YOKOTA NAOKI
TAKAHASHI YUKO
Application Number:
JP2022027440A
Publication Date:
September 06, 2023
Filing Date:
February 25, 2022
Export Citation:
Assignee:
UNIV WASEDA
TAKAHATA PREC CO LTD
TAKAHATA PREC CO LTD
International Classes:
C22B23/00; C22B3/44
Attorney, Agent or Firm:
Yukinori Sezaki