Title:
MANGANESE RECOVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2013/002416
Kind Code:
A1
Abstract:
Provided is a method of economically recovering manganese from low-grade minerals and manganese-containing waste. Iron-reducing bacteria and a manganese-containing substance to be treated are mixed in a treatment solution containing trivalent iron ions, the trivalent iron ions are reduced to divalent iron ions by means of the iron-reducing bacteria, manganese ions are leached from the treated substance into the aforementioned treatment solution with the divalent iron ions as reducing agent, the obtained leachate is solid-liquid separated, the manganese ions contained in the separated liquid are insolubilized (solidified) mainly as oxides, and the obtained manganese oxides are precipitated, separated, and recovered.
Inventors:
YAMAGUCHI TOYOSHI (JP)
YAO YASUKO (JP)
YAO YASUKO (JP)
Application Number:
PCT/JP2012/067137
Publication Date:
January 03, 2013
Filing Date:
June 28, 2012
Export Citation:
Assignee:
JFE STEEL CORP (JP)
YAMAGUCHI TOYOSHI (JP)
YAO YASUKO (JP)
YAMAGUCHI TOYOSHI (JP)
YAO YASUKO (JP)
International Classes:
C22B47/00; C12N1/00; C22B3/18; C22B3/44; C22B7/00; C22B7/02; H01M6/52
Foreign References:
| JP2007113116A | 2007-05-10 | |||
| JP2010207674A | 2010-09-24 | |||
| JP2010209384A | 2010-09-24 |
Attorney, Agent or Firm:
KUMASAKA, Akira et al. (JP)
Akira Kumasaka (JP)
Akira Kumasaka (JP)
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