Title:
鉱石からの金属の回収
Document Type and Number:
Japanese Patent JP5172061
Kind Code:
B2
Abstract:
A bio-leaching method is provided for recovering metal from a metal containing ore. The ore is subjected to contact with a microorganism selective to the oxidation of sulfur. A sulfur containing compound is mixed with the microorganism before, during or after contact with the ore to systemically form sulfuric acid to leach the metal from the ore. The ore is in the form of a slurry, a heap, a charge in a vat and is bioleached for a time sufficient to dissolve the metal in the ore and form a metal-rich leachate and an ore residue. The metal can then be extracted from the metal-rich leachate. The metal containing ore may contain base metals, precious metals, or platinum group metals. Upon formation of the metal-rich leachate, the ore residue may be further processed to recover any precious metals or platinum group metals that may be present.
Inventors:
Dai Vestein Willem PC
Baden Julia Earl
Lastra Manuel Earl
Baden Julia Earl
Lastra Manuel Earl
Application Number:
JP2001538569A
Publication Date:
March 27, 2013
Filing Date:
October 31, 2000
Export Citation:
Assignee:
BHP Minerals International, Inc.
International Classes:
C22B3/18; C22B3/00; C22B3/42; C22B15/00; C22B19/00; C22B19/20; C22B23/00
Domestic Patent References:
| JP63033530A |
Foreign References:
| US5626648 | ||||
| DE2557008A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
Fumiaki Otsuka
Sadao Kumakura
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Takaki Nishijima
Atsushi Hakoda
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