COMPARATIVE STUDY OF MECHANICAL ACTIVATION EFFECT ON PYRO - HYDROMETALLURGY COMBINATIONAL PROCESS IN COPPER EXTRACTION FROM SULFIDE CONCENTRATE BY BALL AND PLATENERY MILLINGS

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MOHAMMADIAN SADEGH; SAIDI ALI

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Journal: Journal of Advanced Processes in Materials Engineering Year:2012 | Volume:6 | Issue:3 (22) Page(s): 85-95

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Title

COMPARATIVE STUDY OF MECHANICAL ACTIVATION EFFECT ON PYRO - HYDROMETALLURGY COMBINATIONAL PROCESS IN COPPER EXTRACTION FROM SULFIDE CONCENTRATE BY BALL AND PLATENERY MILLINGS

Author(s)

MOHAMMADIAN SADEGH | SAIDI ALI | Issue Writer Certificate

Keywords

COPPER SULFIDE CONCENTRATEQ3

MECHANICAL ACTIVATIONQ2

ROASTINGQ3

LEACHINGQ3

Abstract

The object of this study is to reduce invironmental problems and air pollution in copper extraction process from sulfide concentrate by sulfur fixation. In this research, the effect of MECHANICAL ACTIVATION on lime ROASTING process, was studied by ball and platenery millings, and finally the effect of activation and ROASTING on the LEACHING sulfuric acid process was investigated as well. The samples of sulfide concentrate mixed with lime were activated for different times, and by using thermal analysis TG, optimum quantity of these samples was obtained. It is used from thermal analysis of TG-DSC for studying kinetic ROASTING and ROASTING tests on the optimum samples of mechanical activaty was done between 10-60 minutes, with the temperature between 500-700oC and proportions of S:CaO=1:0.8-1:1.2. the samples reached from ROASTING and a sample of inactivated concentrate were put under the LEACHING process at different time. The result of XRD analysis indicated that as a result of activated samples ROASTING, a significant amount of sulfur in concentrate fixed by existence of CaSO4, and just a little amount of that, as a SO2 gas left. the result of atomic absorption analysis showed that copper recovery is 36 percent through LEACHING of inactivated concentrate samples 24 hours. While this process, for ROASTING samples through in first 30 minutes of LEACHING, is about 70 percent.

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APA: Copy

MOHAMMADIAN, SADEGH, & SAIDI, ALI. (2012). COMPARATIVE STUDY OF MECHANICAL ACTIVATION EFFECT ON PYRO - HYDROMETALLURGY COMBINATIONAL PROCESS IN COPPER EXTRACTION FROM SULFIDE CONCENTRATE BY BALL AND PLATENERY MILLINGS. ADVANCED PROCESSES IN MATERIALS, 6(3 (22)), 85-95. SID. https://sid.ir/paper/172652/en

Vancouver: Copy

MOHAMMADIAN SADEGH, SAIDI ALI. COMPARATIVE STUDY OF MECHANICAL ACTIVATION EFFECT ON PYRO - HYDROMETALLURGY COMBINATIONAL PROCESS IN COPPER EXTRACTION FROM SULFIDE CONCENTRATE BY BALL AND PLATENERY MILLINGS. ADVANCED PROCESSES IN MATERIALS[Internet]. 2012;6(3 (22)):85-95. Available from: https://sid.ir/paper/172652/en

IEEE: Copy

SADEGH MOHAMMADIAN, and ALI SAIDI, “COMPARATIVE STUDY OF MECHANICAL ACTIVATION EFFECT ON PYRO - HYDROMETALLURGY COMBINATIONAL PROCESS IN COPPER EXTRACTION FROM SULFIDE CONCENTRATE BY BALL AND PLATENERY MILLINGS,” ADVANCED PROCESSES IN MATERIALS, vol. 6, no. 3 (22), pp. 85–95, 2012, [Online]. Available: https://sid.ir/paper/172652/en

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