Title:
METHOD FOR LEACHING METAL AND METHOD FOR RECOVERING METAL
Document Type and Number:
WIPO Patent Application WO/2023/189436
Kind Code:
A1
Abstract:
A method for leaching at least one metal in battery powder containing at least copper and one or more of cobalt and nickel, the method including a leaching process repeating multiple times, wherein the leaching process includes: a first leaching step of leaching at least one metal in the battery powder in an acidic leaching solution, terminating the leaching before the copper begins to be dissolved, and removing a leached residue from the resulting leached solution; and a second leaching step of leaching at least one metal in the leached residue of the first leaching step in an acidic leaching solution, and terminating the leaching after the copper begins to be dissolved to obtain a leached solution, wherein the leached solution obtained in the second leaching step of the leaching process is used as an acidic leaching solution in a first leaching step of a leaching process followed by said leaching process, and wherein a leached residue is removed from a leached solution in a second leaching step of at least one leaching process.
Inventors:
SHIKADA KEI (JP)
HIGUCHI NAOKI (JP)
FUJIMOTO ATSUSHI (JP)
HIGUCHI NAOKI (JP)
FUJIMOTO ATSUSHI (JP)
Application Number:
PCT/JP2023/009406
Publication Date:
October 05, 2023
Filing Date:
March 10, 2023
Export Citation:
Assignee:
JX METALS CORP (JP)
International Classes:
C22B3/06; B09B3/00; C22B7/00; C22B15/00; C22B23/00
Foreign References:
| JP2017036489A | 2017-02-16 | |||
| JP2018145449A | 2018-09-20 | |||
| KR101011260B1 | 2011-01-26 | |||
| CN113174486A | 2021-07-27 | |||
| CN111118296A | 2020-05-08 | |||
| JP2010180439A | 2010-08-19 | |||
| US20110135547A1 | 2011-06-09 | |||
| JP2014162982A | 2014-09-08 | |||
| JP2017036489A | 2017-02-16 |
Attorney, Agent or Firm:
AXIS Patent International (JP)
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