Title:
A recovery method of a valuable ingredient from a waste dry cell, and recovery equipment
Document Type and Number:
Japanese Patent JP6070898
Kind Code:
B2
Abstract:
The purpose of the present invention is to enable high-purity manganese extremely reduced in contamination by zinc, carbon, etc. to be easily obtained at low cost by: selecting out manganese dry batteries and/or alkaline manganese dry batteries from waste dry batteries; crushing and sieving the selected dry batteries to obtain crushed particles; mixing the crushed particles with an acid solution and a reducing agent to leach manganese and zinc from the crushed particles; making ozone to act on the obtained leachate to obtain a manganese-containing sediment and a solution containing zinc ions; and subjecting the manganese-containing sediment and the solution containing zinc ions to solid-liquid separation. Thus, manganese components contained in the waste dry batteries are recovered as the manganese-containing sediment.
Inventors:
Toyoji Yamaguchi
Yasuko Yao
Kyoko Fujimoto
Yasuko Yao
Kyoko Fujimoto
Application Number:
JP2016514713A
Publication Date:
February 01, 2017
Filing Date:
April 20, 2015
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C22B7/00; B09B3/00; B09B5/00; C22B3/06; C22B3/08; C22B3/10; C22B3/44; C22B19/20; C22B47/00
Domestic Patent References:
| JPS61261443A | 1986-11-19 | |||
| JP2010253432A | 2010-11-11 | |||
| JP2014005496A | 2014-01-16 | |||
| JP2012204343A | 2012-10-22 | |||
| JPS61261443A | 1986-11-19 | |||
| JP2010253432A | 2010-11-11 |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Keisuke Kawahara
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