THE EFFECT OF MECHANICAL ACTIVATION OF SARCHESHMEH COPPER SULFIDE CONCENTRATE ON LEACHING OF COPPER IN FERRIC CHLORIDE

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KAMALI A.R.; VAHDATI KHAKI J.

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Journal: INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN) Year:2006 | Volume:17 | Issue:4 Page(s): 121-128

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Title

THE EFFECT OF MECHANICAL ACTIVATION OF SARCHESHMEH COPPER SULFIDE CONCENTRATE ON LEACHING OF COPPER IN FERRIC CHLORIDE

Author(s)

KAMALI A.R. | VAHDATI KHAKI J. | Issue Writer Certificate

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Abstract

In this research, the effect of mechanical activation of Sarcheshmeh copper concentrate, by means of ball milling, on the efficiency of leaching of copper in ferric chloride has been investigated. It was found that the mechanical activation improved, considerably, the kinetics of copper leaching in ferric chloride media. In 24 hours ball milled sample, copper recovery was 100% in a relatively dilute ferric chloride solution. The activation energy of leaching was decreased from 60.23 kj/mol in no-milled sample to 5.56 kj/mol in 24 hours ball milled concentrate. It was due to the acceleration of chemical reaction, because of increasing of surface reactivity, and acceleration of mass transfer, because of decreasing in diffusion routes in tiny particles. Formation of a sulfur layer, as a reaction product, on the surface of particles during leaching process was confirmed by SEM. Therefore, at the first stage of leaching process of activated concentrate the rate of leaching was considerably high. But at the next stage, after the formation of the dense sulfur layer on the surface of particles with progress of leaching, the leaching rate decreased rapidly.

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APA: Copy

KAMALI, A.R., & VAHDATI KHAKI, J.. (2006). THE EFFECT OF MECHANICAL ACTIVATION OF SARCHESHMEH COPPER SULFIDE CONCENTRATE ON LEACHING OF COPPER IN FERRIC CHLORIDE. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), 17(4), 121-128. SID. https://sid.ir/paper/65778/en

Vancouver: Copy

KAMALI A.R., VAHDATI KHAKI J.. THE EFFECT OF MECHANICAL ACTIVATION OF SARCHESHMEH COPPER SULFIDE CONCENTRATE ON LEACHING OF COPPER IN FERRIC CHLORIDE. INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)[Internet]. 2006;17(4):121-128. Available from: https://sid.ir/paper/65778/en

IEEE: Copy

A.R. KAMALI, and J. VAHDATI KHAKI, “THE EFFECT OF MECHANICAL ACTIVATION OF SARCHESHMEH COPPER SULFIDE CONCENTRATE ON LEACHING OF COPPER IN FERRIC CHLORIDE,” INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN), vol. 17, no. 4, pp. 121–128, 2006, [Online]. Available: https://sid.ir/paper/65778/en

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