Title:
硫化鉱及び/又は硫化精鉱の酸化浸出方法
Document Type and Number:
Japanese Patent JP2012528243
Kind Code:
A
Abstract:
A method for leaching one or more target metals from a sulfide ore and/or concentrate containing such, the method comprising the steps of: (a) Exposing the ore and/or concentrate to an aqueous solution of chlorine-based oxidising species in which the hypochlorous acid comprises at least 10 mol % of the chlorine-based oxidising species; (b) Allowing and/or facilitating the oxidation of the target metals by the hypochlorous acid, thereby decreasing the pH such that the predominant chlorine-based oxidising species becomes chlorine; (c) Allowing and/or facilitating the oxidation of the target metals by the chlorine; (d) Allowing and/or facilitating the dissolution of the target metals by the solution species formed during the oxidation by hypochlorous acid and/or chlorine; and (e) Passing the pregnant solution produced thereby to a means for metal recovery.
Inventors:
Nicholas James Welham
Gerry Marvin Johnson
Matthew Leslie Sutcliff
Gerry Marvin Johnson
Matthew Leslie Sutcliff
Application Number:
JP2012512167A
Publication Date:
November 12, 2012
Filing Date:
May 26, 2010
Export Citation:
Assignee:
Metareach Limited
International Classes:
C22B3/04; C22B11/00; C22B13/00; C22B15/00; C22B17/00; C22B19/20; C22B23/00; C22B30/04; C22B43/00; C22B61/00
Domestic Patent References:
| JPS59501370A | 1984-08-02 | |||
| JP2008106347A | 2008-05-08 |
Other References:
JPN6014042537; ＣＨＯ Ｅ Ｈ: 'Ｌｅａｃｈｉｎｇ ｓｔｕｄｉｅｓ ｏｆ ｃｈａｌｃｏｐｙｒｉｔｅ ａｎｄ ｓｐｈａｌｅｒｉｔｅ ｗｉｔｈ ｈｙｐｏｃｈｌｏｒｏｕｓ ａｃｉｄ．' Ｍｅｔａｌｌｕｒｇｉｃａｌ Ｔｒａｎｓａｃｔｉｏｎｓ Ｂ Ｖｏｌ．１８ Ｎｏ．２, 198706, Ｐａｇｅ．３１５-３２３
JPN6015040068; Ｄｅｎｉｚ ｉＫｉＺ 他２名: 'ＴＨＥ ＯＰＴＩＭＵＭ ＬＥＡＣＨＩＮＧ ＣＯＮＤＩＴＩＯＮＳ ＯＦ ＡＲＴＶｉＮ ＭＵＲＧＵＬ ＣＨＡＬＣＯＰＹＲＩＴＥ ＯＲＥ ＩＮ ＨＹＰＯＣＨＬＯＲＩＴＥ ＳＯＬＵＴＩＯＮ' ＳＡＵ Ｆｅｎ Ｂｉｌｉｍｌｅｒｉ Ｅｎｓｔｉｔｕｓｕ Ｄｅｒｇｉｓｉ Ｃｉｌｔ．９ Ｓａｙｉ．２, 2005, ｐ．６-１１
JPN6014042537; ＣＨＯ Ｅ Ｈ: 'Ｌｅａｃｈｉｎｇ ｓｔｕｄｉｅｓ ｏｆ ｃｈａｌｃｏｐｙｒｉｔｅ ａｎｄ ｓｐｈａｌｅｒｉｔｅ ｗｉｔｈ ｈｙｐｏｃｈｌｏｒｏｕｓ ａｃｉｄ．' Ｍｅｔａｌｌｕｒｇｉｃａｌ Ｔｒａｎｓａｃｔｉｏｎｓ Ｂ Ｖｏｌ．１８ Ｎｏ．２, 198706, Ｐａｇｅ．３１５-３２３
JPN6015040068; Ｄｅｎｉｚ ｉＫｉＺ 他２名: 'ＴＨＥ ＯＰＴＩＭＵＭ ＬＥＡＣＨＩＮＧ ＣＯＮＤＩＴＩＯＮＳ ＯＦ ＡＲＴＶｉＮ ＭＵＲＧＵＬ ＣＨＡＬＣＯＰＹＲＩＴＥ ＯＲＥ ＩＮ ＨＹＰＯＣＨＬＯＲＩＴＥ ＳＯＬＵＴＩＯＮ' ＳＡＵ Ｆｅｎ Ｂｉｌｉｍｌｅｒｉ Ｅｎｓｔｉｔｕｓｕ Ｄｅｒｇｉｓｉ Ｃｉｌｔ．９ Ｓａｙｉ．２, 2005, ｐ．６-１１
JPN6014042537; ＣＨＯ Ｅ Ｈ: 'Ｌｅａｃｈｉｎｇ ｓｔｕｄｉｅｓ ｏｆ ｃｈａｌｃｏｐｙｒｉｔｅ ａｎｄ ｓｐｈａｌｅｒｉｔｅ ｗｉｔｈ ｈｙｐｏｃｈｌｏｒｏｕｓ ａｃｉｄ．' Ｍｅｔａｌｌｕｒｇｉｃａｌ Ｔｒａｎｓａｃｔｉｏｎｓ Ｂ Ｖｏｌ．１８ Ｎｏ．２, 198706, Ｐａｇｅ．３１５-３２３
Attorney, Agent or Firm:
Koichi Hirota
Yoshihiro Nagare
Naoko Matsuda
Yoshihiro Nagare
Naoko Matsuda