Leaching of chalcopyrite and sphalerite using bacteria enriched from a spent chalcocite heap

被引：34

作者：

Keeling, SE ^{[1
]}

Palmer, ML ^{[1
]}

Caracatsanis, FC ^{[1
]}

Johnson, JA ^{[1
]}

Watling, HR ^{[1
]}

机构：

[1] CSIRO Mat, AJ Parker CRC Hydromet, Bentley, WA 6982, Australia

来源：

MINERALS ENGINEERING | 2005年 / 18卷 / 13-14期

关键词：

sulphide ore; bioleaching; reaction kinetics;

D O I：

10.1016/j.mineng.2005.05.015

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Native bioleaching microbes were recovered from a spent chalcocite/chalcopyrite/pyrite heap located at Nifty Copper Mine in Western Australia. As part of the study, methods were developed to enrich and isolate iron and/or sulphur oxidising microbes that thrive in low pH environments. Phenotypic characterisation of native isolates revealed diverse substrate utilisation (chalcopyrite, pyrite, ferrous ion, reduced sulphur as tetrathionate and glucose) as well as displaying growth temperatures between 30 and 50 degrees C. Their tolerance to changes in pH, temperature, salinity and the presence of metals was also examined. The potential for single isolates to assist the leaching of chalcopyrite and sphalerite concentrates was evaluated. Copper and zinc recoveries from the respective concentrates were greater when native isolates were employed, compared with the use of laboratory reference strains or abiotic conditions. Crown Copyright (c) 2005 Published by Elsevier Ltd. All rights reserved.

引用

页码：1289 / 1296

页数：8

共 12 条

[1]

Elsherief AE, 2002, T I MIN METALL C, V111, pC25

[2]

FOWLER TA, 1999, P INT BIOH S IBS 99, P273

[3] Bioleaching of a Spanish complex sulphide ore bulk concentrate [J].

Gómez, C ;

Blázquez, ML ;

Ballester, A .

MINERALS ENGINEERING, 1999, 12 (01) :93-106

[4]

GRUNDWELL FK, 1997, BIOMINING THEORY MIC, P177

[5] Sulphur speciation of leached chalcopyrite surfaces as determined by X-ray photoelectron spectroscopy [J].

Klauber, C ;

Parker, A ;

van Bronswijk, W ;

Watling, H .

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2001, 62 (1-4) :65-94

[6] An X-ray photoelectron spectroscopy study of the mechanism of oxidative dissolution of chalcopyrite [J].

Parker, A ;

Klauber, C ;

Kougianos, A ;

Watling, HR ;

van Bronswijk, W .

HYDROMETALLURGY, 2003, 71 (1-2) :265-276

[7]

Readett D., 2002, AUSIMM B, P12

[8] New information on the sphalerite bioleaching mechanism at low and high temperature [J].

Rodríguez, Y ;

Ballester, A ;

Blázquez, ML ;

González, F ;

Muñoz, JA .

HYDROMETALLURGY, 2003, 71 (1-2) :57-66

[9]

Schnell HA., 1997, BIOMINING THEORY MIC, DOI 10.1007/978-3-662-06111-4_2

[10] The role of iron-hydroxy precipitates in the passivation of chalcopyrite during bioleaching [J].

Stott, MB ;

Watling, HR ;

Franzmann, PD ;

Sutton, D .

MINERALS ENGINEERING, 2000, 13 (10-11) :1117-1127

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