Title:
METHOD FOR RECOVERING VALUABLE METALS FROM WASTE BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/177005
Kind Code:
A1
Abstract:
Provided is a method for recovering valuable metals contained in waste batteries, wherein valuable metals can be efficiently recovered while suppressing a reduction in recovery rate. The method according to the present invention for recovering valuable metals from waste batteries comprises: a roasting step S1 for roasting a waste battery; a crushing step S2 for inserting an obtained roasted product into a crushing container, and crushing the roasted product using a chain mill; and a sieving step S3 for sieving an obtained crushed product and separating the crushed product into sieve upper material and sieve lower material. A chain mill device 2 that is used in the crushing process is provided with: a rotating axial rod 21 vertically erected with respect to a bottom surface 1F of a crushing container 1; and a chain 22 attached to a side surface of the rotating axial rod 21. The chain mill device 2 has a structure in which an attachment height H of the chain 22 with respect to the rotating axial rod 21 can be adjusted.
Inventors:
ISEKI TAKASHI (JP)
Application Number:
PCT/JP2021/005424
Publication Date:
September 10, 2021
Filing Date:
February 15, 2021
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
B09B3/00; B02C13/16; B09B5/00; C22B1/02; C22B7/00; C22B15/00; C22B23/02; H01M10/54
Foreign References:
| JPH06346160A | 1994-12-20 | |||
| JP2013146701A | 2013-08-01 | |||
| JP2019135321A | 2019-08-15 | |||
| JP2013091826A | 2013-05-16 | |||
| JP2013506048W | ||||
| JP2010003512A | 2010-01-07 |
Other References:
See also references of EP 4115999A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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