Treatment of copper concentrates containing chalcopyrite and non-ferrous sulphides by the BRISA process

被引：33

作者：

Carranza, F ^{[1
]}

Iglesias, N ^{[1
]}

Mazuelos, A ^{[1
]}

Palencia, I ^{[1
]}

Romero, R ^{[1
]}

机构：

[1] Univ Seville, Fac Quim, Dept Ingn Quim, E-41012 Seville, Spain

来源：

HYDROMETALLURGY | 2004年 / 71卷 / 3-4期

关键词：

bioleaching; BRISA process; copper sulphides; sphalerite; ferric leaching;

D O I：

10.1016/S0304-386X(03)00119-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The technical viability of the BRISA process for copper concentrates consisting of mixtures of either chalcopyrite and secondary copper sulphides (chalcocite and covellite) or chalcopyrite and sphalerite was studied. The ferric leaching of six concentrates (different in origin, granulometric, chemical and mineralogical composition) was tested in this work. In order to speed up the process, ferric leaching was carried out in two stages. In the first one, metallic sulphides associated with chalcopyrite were leached and, in the second one, the unattacked chalcopyrite was leached with Ag+ as a catalyst. Applying this sequence of leaching stages, copper extractions higher than 96% were achieved within 20 h for all the studied concentrates. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：413 / 420

页数：8

共 17 条

[1]

ARMENTIA H, 1992, APPL MICROBIOL BIOT, V36, P697

[2] Silver catalyzed IBES process: Application to a Spanish copper-zinc sulphide concentrate [J].

Carranza, F ;

Palencia, I ;

Romero, R .

HYDROMETALLURGY, 1997, 44 (1-2) :29-42

[3] KINETICS IMPROVEMENT OF HIGH-GRADE SULFIDES BIOLEACHING BY EFFECTS SEPARATION [J].

CARRANZA, F ;

IGLESIAS, N ;

ROMERO, R ;

PALENCIA, I .

FEMS MICROBIOLOGY REVIEWS, 1993, 11 (1-3) :129-138

[4]

CARRANZA F, 1997, P INT BIOH S IBS97 B

[5] FACTORS AFFECTING ALKALI JAROSITE PRECIPITATION [J].

DUTRIZAC, JE .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1983, 14 (04) :531-539

[6]

IGLESIAS N, 1996, IBES PROCESS DESCRIP, P185

[7] MODEL OF THE BIOFILM STRUCTURE OF THIOBACILLUS-FERROOXIDANS [J].

KARAMANEV, DG .

JOURNAL OF BIOTECHNOLOGY, 1991, 20 (01) :51-64

[8]

Mateos F. Barriga, 1993, Biorecovery, V2, P195

[9] Continuous ferrous iron biooxidation in flooded packed bed reactors [J].

Mazuelos, A ;

Romero, R ;

Palencia, I ;

Iglesias, N ;

Carranza, F .

MINERALS ENGINEERING, 1999, 12 (05) :559-564

[10] High efficiency reactor for the biooxidation of ferrous iron [J].

Mazuelos, A ;

Carranza, F ;

Palencia, I ;

Romero, R .

HYDROMETALLURGY, 2000, 58 (03) :269-275

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