Title:
SORTING METHOD FOR VALUABLE MATERIALS
Document Type and Number:
WIPO Patent Application WO/2022/249615
Kind Code:
A1
Abstract:
This sorting method for valuable materials includes: a heat treatment step for performing a heat treatment on a lithium ion secondary battery including valuable materials; a crushing step for crushing the heated treated object obtained in the heat treatment step; and classification steps including a first classification step for classifying the crushed object obtained in the crushing step into an intermediate product and a coarse-grained product at a classification point of 0.6-2.4 mm, and a second classification step for classifying the intermediate product into a medium-grained product and a fine-grained product at a classification point of 40-300 μm.
Inventors:
YAMASHITA MASATAKA (JP)
HONMA YOSHIHIRO (JP)
NISHIKAWA CHIHIRO (JP)
LIU JIAHAO (JP)
TAHATA SHOTA (JP)
LIU NOBUYUKI (JP)
HONMA YOSHIHIRO (JP)
NISHIKAWA CHIHIRO (JP)
LIU JIAHAO (JP)
TAHATA SHOTA (JP)
LIU NOBUYUKI (JP)
Application Number:
PCT/JP2022/008686
Publication Date:
December 01, 2022
Filing Date:
March 01, 2022
Export Citation:
Assignee:
DOWA ECO SYSTEM CO LTD (JP)
International Classes:
H01M10/54; C22B7/00
Domestic Patent References:
| WO2021090571A1 | 2021-05-14 | |||
| WO2021177200A1 | 2021-09-10 |
Foreign References:
| JP2020061297A | 2020-04-16 | |||
| JPH10189063A | 1998-07-21 | |||
| JP2015195129A | 2015-11-05 | |||
| JP2020064855A | 2020-04-23 | |||
| JP6748274B2 | 2020-08-26 | |||
| JP6268130B2 | 2018-01-24 | |||
| JP6676124B1 | 2020-04-08 |
Attorney, Agent or Firm:
ITOH Tadashige et al. (JP)
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