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Patent Searching and Data


Title:
METHOD AND FACILITY FOR RECOVERING MANGANESE FROM WASTE DRY BATTERIES
Document Type and Number:
WIPO Patent Application WO/2021/075135
Kind Code:
A1
Abstract:
A method for recovering manganese from waste dry batteries, said method sequentially comprising, in the following order: a step for sorting waste dry batteries; a fracturing/sieving step for obtaining a particulate material from the waste dry batteries; an acid leaching step for obtaining a leachate, which contains ions of Mn, Zn and Fe, from the particulate material; a solid-liquid separation step for separating the leachate; and a manganese extraction step for obtaining a manganese-containing solution from the leachate. The manganese extraction step comprises, in random order, a specific zinc removal step and a specific iron removal step.

Inventors:
YAMAGUCHI TOYOSHI (JP)
SHINODA MARIKO (JP)
MURAI RYOTA (JP)
OKUYAMA GORO (JP)
Application Number:
PCT/JP2020/030637
Publication Date:
April 22, 2021
Filing Date:
August 11, 2020
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
B09B3/00; B09B5/00; C22B3/06; C22B3/08; C22B3/10; C22B3/44; C22B7/00; C22B47/00; H01M6/52
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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