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Title:
METHOD FOR LEACHING OUT COPPER
Document Type and Number:
WIPO Patent Application WO/2013/021438
Kind Code:
A1
Abstract:
Provided is a method for leaching out copper from a copper sulfide ore using a sulfuric acid solution containing an iron-oxidizing bacterium and silver without decreasing the growth of the iron-oxidizing bacterium and without deteriorating the iron-oxidizing ability of the iron-oxidizing bacterium. A method for leaching out copper from a copper sulfide ore using a sulfuric acid solution containing an iron-oxidizing bacterium, a phenolic compound and silver as a leaching solution.

Inventors:
KUWAZAWA,Takenari (JX Nippon Mining & Metals Corporation1-2,Shirogane-cho 1-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
桑澤 毅成 (〒56 茨城県日立市白銀町1-1-2JX日鉱日石金属株式会社技術開発センター内 Ibaraki, 〒3170056, JP)
MIURA,Akira (JX Nippon Mining & Metals Corporation1-2,Shirogane-cho 1-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
Application Number:
JP2011/067981
Publication Date:
February 14, 2013
Filing Date:
August 05, 2011
Export Citation:
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Assignee:
JX Nippon Mining & Metals Corporation (6-3Otemachi 2-chome, Chiyoda-ku Tokyo, 64, 〒1008164, JP)
JX日鉱日石金属株式会社 (〒64 東京都千代田区大手町二丁目6番3号 Tokyo, 〒1008164, JP)
KUWAZAWA,Takenari (JX Nippon Mining & Metals Corporation1-2,Shirogane-cho 1-chome,Hitachi-sh, Ibaraki 56, 〒3170056, JP)
桑澤 毅成 (〒56 茨城県日立市白銀町1-1-2JX日鉱日石金属株式会社技術開発センター内 Ibaraki, 〒3170056, JP)
International Classes:
C22B15/00; C22B3/04; C22B3/18; C12N1/20
Foreign References:
JP2011047030A
JP2011127156A
US4571387A
Attorney, Agent or Firm:
AXIS Patent International (Yushi Kogyo Kaikan, 13-11Nihonbashi 3-chome,Chuo-k, Tokyo 27, 〒1030027, JP)
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Claims: