Title:
METAL LEACHING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/105903
Kind Code:
A1
Abstract:
A metal leaching method includes contacting battery powder of lithium ion battery waste with an acidic leachate 21 inside a leaching container 1 and leaching a metal contained in the battery powder into the acidic leachate 21, wherein the leaching container 1 has a porous member 2 arranged at a position above the liquid surface 22 of the acidic leachate 21 stored inside the container so as to cover the liquid surface 22, and when the metal is leached inside the leaching container 1, gas bubbles Ba generated in the acidic leachate 21 are brought into contact with the porous member 2 and collapsed, the opening of the porous member 2 being 12 mm or less.
Inventors:
YANAGAWA KOKI (JP)
Application Number:
PCT/JP2022/037331
Publication Date:
June 15, 2023
Filing Date:
October 05, 2022
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP (JP)
International Classes:
C22B7/00; B01D19/02; B09B3/70; B09B5/00; C22B1/02; C22B3/06; H01M10/54
Foreign References:
| JP2016113672A | 2016-06-23 | |||
| JP2017147241A | 2017-08-24 | |||
| JPS6354405U | 1988-04-12 | |||
| JP2017164657A | 2017-09-21 | |||
| JPS61283311A | 1986-12-13 | |||
| JPH10309402A | 1998-11-24 | |||
| JP2021141060A | 2021-09-16 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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