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Patent Searching and Data


Title:
METHOD AND EQUIPMENT FOR RECOVERING VALUABLE COMPONENTS FROM WASTE DRY BATTERIES
Document Type and Number:
WIPO Patent Application WO/2015/162902
Kind Code:
A1
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:
YAMAGUCHI TOYOSHI (JP)
YAO YASUKO (JP)
FUJIMOTO KYOKO (JP)
Application Number:
PCT/JP2015/002149
Publication Date:
October 29, 2015
Filing Date:
April 20, 2015
Export Citation:
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Assignee:
JFE STEEL CORP (JP)
International Classes:
C22B7/00; B09B3/00; B09B5/00; C22B3/00; C22B3/44; C22B19/20; C22B19/30; C22B47/00; H01M6/52
Foreign References:
JP2014005496A2014-01-16
JP2012204343A2012-10-22
JPS61261443A1986-11-19
JP2010253432A2010-11-11
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
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