TREATMENT OF CHALCOPYRITE CONCENTRATES BY HYDROMETALLURGICAL TECHNIQUES

被引：21

作者：

VENKATACHALAM, S

机构：

[1] Department of Metallurgical Engineering, Indian Institute of Technology, Bombay

来源：

MINERALS ENGINEERING | 1991年 / 4卷 / 7-11期

关键词：

CHALCOPYRITE; HYDROMETALLURGY; LEACHING; ELECTROCHEMICAL LEACHING; ANODIC DISSOLUTION; SLURRY ELECTROLYSIS;

D O I：

10.1016/0892-6875(91)90087-C

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A variety of hydrometallurgical techniques have been studied for the treatment of chalcopyrite concentrates. These include prior thermal treatment before leaching, direct leaching and direct electrochemical leaching. Thermal treatment to alter the mineralogical composition of the concentrate without oxidation with oxygen has been studied. In direct leaching, a variety of leaching systems like sulphate, chloride, nitric acid, ammoniacal systems and biological systems have been investigated. Direct electrochemical leaching of chalcopyrite concentrates with a view to recover copper and elemental sulphur has been proposed. Slurry electrolysis of chalcopyrite concentrates and basic studies to elucidate the mechanism of dissolution have been done. The development of a less polluting hydrometallurgical process as an alternative to smelting is the need of the future. The avoidance of air pollution as well as economic considerations such as capital cost, operating cost and recovery of hyproducts will determine the adoption of these new processes.

引用

页码：1115 / 1126

页数：12

共 54 条

[1]

Wadsworth, Advances in the leaching of sulphide minerals, Minerals Sci. Engng., 4, 4, (1972)

[2]

Roman, Benner, The dissolution of copper concentrates, Minerals Sci. Engng., 5, 1, (1973)

[3]

Habashi, Chalcopyrite, its chemistry and Metallurgy, (1978)

[4]

Subramanian, Jennings, Review of hydro-metallurgy of chalcopyrite concentrates, Canadian Metallurgical Quarterly, 11, 2, (1972)

[5]

Das, Venkatachalam, Copper recovery by roast leach process, Trans I.I.M., 32, 3, (1979)

[6]

Das, Venkatachalam, Roast leach process for copper recovery from chalcopyrite concentrates, J. Inst. Engrs., 59, (1978)

[7]

Krishnaswamy, Venkatachalam, Recovery of copper from chalcopyrite concentrate by a roast leach procedure, Ind. J. Technol., 16, (1978)

[8]

Griffith, Dey, Jordan, Nyman, Development of a roast leach electrowinning process for Lakeshore, J. Metals, 17, (1975)

[9]

Haskett, Benner, Lindstrom, Copper recovery from chalcopyrite by a roast leach procedure, U.S. Bur. Mines, Tech. Prog. Report, (1973)

[10]

Howell, Grothe, McLeod, Bagdad reports metallurgical test results on copper recovery method, Eng. & Min. J., 158, 7, (1957)

← 1 2 3 4 5 6 →