JP2008031504A - 黄銅鉱を含有する硫化銅鉱の浸出方法 - Google Patents
黄銅鉱を含有する硫化銅鉱の浸出方法 Download PDFInfo
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- JP2008031504A JP2008031504A JP2006204454A JP2006204454A JP2008031504A JP 2008031504 A JP2008031504 A JP 2008031504A JP 2006204454 A JP2006204454 A JP 2006204454A JP 2006204454 A JP2006204454 A JP 2006204454A JP 2008031504 A JP2008031504 A JP 2008031504A
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- copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0069—Leaching or slurrying with acids or salts thereof containing halogen
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Biotechnology (AREA)
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Abstract
【解決手段】黄銅鉱を含有する硫化銅鉱から銅を採取するに際し、塩化物イオン濃度を6g/L以上18g/L未満、pHを1.6以上2.5未満に調整した硫酸溶液を浸出液として用い、かつ、該浸出液に塩化物イオン耐性を有する硫黄酸化細菌を添加して銅の浸出を行うことを特徴とする、硫化銅鉱からの銅の採取方法。
【選択図】図3
Description
(1) 黄銅鉱を含有する硫化銅鉱から銅を採取するに際し、塩化物イオン濃度を6g/L以上18g/L未満、pHを1.6以上2.5未満に調整した硫酸溶液を浸出液として用い、かつ、該浸出液に塩化物イオン耐性を有する硫黄酸化細菌を添加して銅の浸出を行うことを特徴とする、硫化銅鉱からの銅の採取方法。
(2) 前記浸出液の銅(II)イオン初期濃度と鉄(II)イオン初期濃度をそれぞれ0.5g/L以上5g/L未満に調整することを特徴とする、(1)に記載の方法。
(3) 塩化物イオン耐性を有する硫黄酸化細菌が、アシディチオバチルス・スピーシーズ(Acidithiobacillus sp.)TTH-19A株(NITE P-164)である、(1)又は(2)に記載の方法。
[化1]
Cu2++Fe2+ ⇔ Cu++Fe3+ (式1)
[化2]
CuFeS2+Cu++Fe3+ →Cu2S+ 2Fe2++S (式2)
[化3]
Cu2S+4Fe3+→2Cu2++ 4Fe2++S (式3)
[化4]
S+1.5O2 +H2O+ 硫黄酸化細菌 → H2SO4 (式4)
[化5]
Cu2S +4H++O2→ 2Cu2++2H2O+S (式5)
対象鉱として、黄銅鉱を主成分とするカンデラリア産の精鉱を用いた。この品位は、Cu:28mass%、Fe:28mass%、S:32mass%であった。
実施例1に記載の浸出液に、塩化ナトリウムを添加しない以外は実施例1と同様にして常温で振とう浸出(比較例1)、また、塩化物イオン濃度が3g/L(比較例2)、18g/L(比較例3)、30g/L(比較例4)となるように塩化ナトリウムをそれぞれ添加する以外は実施例1と同様にして常温で振とう浸出した。
硫酸にてpH1.6(実施例3)、pH2.0(実施例4)に調整すること以外は実施例1と同様にして常温で振とう浸出し、浸出液の上澄みの菌濃度、銅濃度を測定し、経時変化を調べた。
硫酸にてpH1.4(比較例5)、pH2.5(比較例6)に調整すること以外は実施例1と同様にして常温で振とう浸出し、浸出液の上澄みの菌濃度、銅濃度を測定し、経時変化を調べた。
浸出液の銅(II)イオンと鉄(II)イオンの初期濃度をそれぞれ0.5g/L(実施例5)、1.0g/L(実施例6)に調整すること以外は実施例1と同様にして常温で振とう浸出し、浸出液の上澄みの銅濃度増加量を測定し、経時変化を調べた。
浸出液の銅(II)イオンと鉄(II)イオンの初期濃度をそれぞれ0.1g/L(比較例7)、5.0g/L(比較例8)に調整すること以外は実施例1と同様にして常温で振とう浸出し、浸出液の上澄みの銅濃度増加量を測定し、経時変化を調べた。
Claims (3)
- 黄銅鉱を含有する硫化銅鉱から銅を採取するに際し、塩化物イオン濃度を6g/L以上18g/L未満、pHを1.6以上2.5未満に調整した硫酸溶液を浸出液として用い、かつ、該浸出液に塩化物イオン耐性を有する硫黄酸化細菌を添加して銅の浸出を行うことを特徴とする、硫化銅鉱からの銅の採取方法。
- 前記浸出液の銅(II)イオン初期濃度と鉄(II)イオン初期濃度をそれぞれ0.5g/L以上5g/L未満に調整することを特徴とする、請求項1に記載の方法。
- 塩化物イオン耐性を有する硫黄酸化細菌が、アシディチオバチルス・スピーシーズ(Acidithiobacillus sp.)TTH-19A株(NITE P-164) である、請求項1又は2に記載の方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006204454A JP5052834B2 (ja) | 2006-07-27 | 2006-07-27 | 黄銅鉱を含有する硫化銅鉱の浸出方法 |
AU2007203317A AU2007203317B2 (en) | 2006-07-27 | 2007-07-17 | Method of leaching copper sulfide ores containing chalcopyrite |
US11/878,110 US20080026450A1 (en) | 2006-07-27 | 2007-07-20 | Method of leaching copper sulfide ores containing chalcopyrite |
CL200702165A CL2007002165A1 (es) | 2006-07-27 | 2007-07-24 | Metodo para recuperar cobre desde minerales de sulfuro de cobre que comprende usar una solucion de acido sulfurico con una concentracion de ion cloruro ajustada entre 6 y 18 gr/l y ph entre 1,6 y 2,5 como solucion de lixiviacion y lixiviar el cobre c |
PE2007000971A PE20080392A1 (es) | 2006-07-27 | 2007-07-26 | Metodo de lixiviacion de menas de sulfuro de cobre que contienen calcopirita |
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JP2006204454A JP5052834B2 (ja) | 2006-07-27 | 2006-07-27 | 黄銅鉱を含有する硫化銅鉱の浸出方法 |
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JP2008031504A true JP2008031504A (ja) | 2008-02-14 |
JP5052834B2 JP5052834B2 (ja) | 2012-10-17 |
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US (1) | US20080026450A1 (ja) |
JP (1) | JP5052834B2 (ja) |
AU (1) | AU2007203317B2 (ja) |
CL (1) | CL2007002165A1 (ja) |
PE (1) | PE20080392A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018127979A1 (ja) * | 2017-01-06 | 2018-07-12 | Jx金属株式会社 | 砒素含有銅鉱物の処理方法 |
CN112522511A (zh) * | 2020-11-09 | 2021-03-19 | 紫金矿业集团股份有限公司 | 排土场废石资源化处置方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AR082048A1 (es) | 2010-06-30 | 2012-11-07 | Bhp Chile Inc | Un metodo para recuperar cobre de una mena que contiene mineral de sulfuro de cobre |
JP6431213B2 (ja) | 2015-04-17 | 2018-11-28 | ザ ユニバーシティ オブ ブリティッシュ コロンビアThe University Of British Columbia | チオカルボニル官能基を有する試薬による金属硫化物の浸出処理 |
PE20240831A1 (es) | 2016-10-19 | 2024-04-22 | Jetti Resources Llc | Procesos para lixiviar sulfuros metalicos con reactivos que tienen grupos funcionales tiocarbonilo |
CN114574711B (zh) * | 2022-03-10 | 2024-04-23 | 中国有色桂林矿产地质研究院有限公司 | 一种硫化铜矿的氧化浸出方法 |
Citations (6)
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JPS5196727A (ja) * | 1976-01-14 | 1976-08-25 | ||
JPS5342117A (en) * | 1976-09-29 | 1978-04-17 | Ise Chem Ind | Method of treating minerals or alloys containing nickel* cobalt by bacterium |
JPH0841553A (ja) * | 1990-11-07 | 1996-02-13 | Leaching Srl | 鉱石又は濃厚物中の鉱物質化合物をバイオ酸化により可溶化及び分離するバイオ冶金法 |
JPH10265864A (ja) * | 1997-03-27 | 1998-10-06 | Nikko Kinzoku Kk | バクテリアを用いた硫化銅鉱からの銅浸出方法 |
JP2007049992A (ja) * | 2005-08-17 | 2007-03-01 | Biosigma Sa | 硫黄酸化細菌およびその硫化銅鉱バイオリーチングプロセスへの利用 |
JP2007228960A (ja) * | 2006-02-06 | 2007-09-13 | Nikko Kinzoku Kk | 塩化物イオン耐性をもつ硫黄酸化細菌 |
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US3347661A (en) * | 1964-07-29 | 1967-10-17 | Bio Metals Corp Ltd | Cyclic leaching process employing iron oxidizing bacteria |
CA1214043A (en) * | 1983-01-26 | 1986-11-18 | Albert Bruynesteyn | Biological-acid leach process |
US5431788A (en) * | 1993-06-28 | 1995-07-11 | Cominco Engineering Services Ltd. | Chloride assisted hydrometallurgical copper extraction |
AUPP543798A0 (en) * | 1998-08-24 | 1998-09-17 | Technological Resources Pty Limited | Hydrometallurgical extraction of copper and other valuable metals |
US6802888B2 (en) * | 1998-12-14 | 2004-10-12 | Geobiotics, Llc | High temperature heap bioleaching process |
WO2000037690A1 (en) * | 1998-12-18 | 2000-06-29 | The University Of British Columbia | Silver-catalyzed bio-leaching process for copper extraction from chalcopyrite heap |
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US8497113B2 (en) * | 2006-02-06 | 2013-07-30 | Jx Nippon Mining & Metals Corporation | Chloride ion-resistant sulfur-oxidizing bacteria |
ZA200708340B (en) * | 2006-10-27 | 2008-10-29 | Biosigma Sa | Process to increase the bioleaching speed of ores or concentrates of sulfide metal species, by means of continuous inoculation with leaching solution that contains isolated microorganisms, with or without the presence of native microorganisms |
-
2006
- 2006-07-27 JP JP2006204454A patent/JP5052834B2/ja not_active Expired - Fee Related
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2007
- 2007-07-17 AU AU2007203317A patent/AU2007203317B2/en not_active Withdrawn - After Issue
- 2007-07-20 US US11/878,110 patent/US20080026450A1/en not_active Abandoned
- 2007-07-24 CL CL200702165A patent/CL2007002165A1/es unknown
- 2007-07-26 PE PE2007000971A patent/PE20080392A1/es active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5196727A (ja) * | 1976-01-14 | 1976-08-25 | ||
JPS5342117A (en) * | 1976-09-29 | 1978-04-17 | Ise Chem Ind | Method of treating minerals or alloys containing nickel* cobalt by bacterium |
JPH0841553A (ja) * | 1990-11-07 | 1996-02-13 | Leaching Srl | 鉱石又は濃厚物中の鉱物質化合物をバイオ酸化により可溶化及び分離するバイオ冶金法 |
JPH10265864A (ja) * | 1997-03-27 | 1998-10-06 | Nikko Kinzoku Kk | バクテリアを用いた硫化銅鉱からの銅浸出方法 |
JP2007049992A (ja) * | 2005-08-17 | 2007-03-01 | Biosigma Sa | 硫黄酸化細菌およびその硫化銅鉱バイオリーチングプロセスへの利用 |
JP2007228960A (ja) * | 2006-02-06 | 2007-09-13 | Nikko Kinzoku Kk | 塩化物イオン耐性をもつ硫黄酸化細菌 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018127979A1 (ja) * | 2017-01-06 | 2018-07-12 | Jx金属株式会社 | 砒素含有銅鉱物の処理方法 |
CN112522511A (zh) * | 2020-11-09 | 2021-03-19 | 紫金矿业集团股份有限公司 | 排土场废石资源化处置方法 |
CN112522511B (zh) * | 2020-11-09 | 2021-12-10 | 紫金矿业集团股份有限公司 | 排土场废石资源化处置方法 |
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Publication number | Publication date |
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AU2007203317B2 (en) | 2009-05-21 |
US20080026450A1 (en) | 2008-01-31 |
CL2007002165A1 (es) | 2008-02-08 |
JP5052834B2 (ja) | 2012-10-17 |
AU2007203317A1 (en) | 2008-02-14 |
PE20080392A1 (es) | 2008-04-25 |
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