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Patent Searching and Data


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 (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
山口 東洋司 (〒11 東京都千代田区内幸町二丁目2番3号JFEスチール株式会社知的財産部内 Tokyo, 〒1000011, JP)
Application Number:
JP2012/067137
Publication Date:
January 03, 2013
Filing Date:
June 28, 2012
Export Citation:
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Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
JFEスチール株式会社 (〒11 東京都千代田区内幸町二丁目2番3号 Tokyo, 〒1000011, JP)
YAMAGUCHI, Toyoshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
International Classes:
C22B47/00; C12N1/00; C22B3/18; C22B3/44; C22B7/00; C22B7/02; H01M6/52
Foreign References:
JP2007113116A2007-05-10
JP2010207674A2010-09-24
JP2010209384A2010-09-24
Attorney, Agent or Firm:
KUMASAKA, Akira et al. (JFE TECHNO-RESEARCH CORPORATION 7th floor, Yanagiya building, 1-10, Nihonbashi 2-chome, Chuo-k, Tokyo 27, 〒1030027, JP)
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Claims: