THE INVESTIGATION OF KINETICS BEHAVIOR OF GOLD AND SILVER LEACHING BY VARIOUS OXIDIZING REAGENTS IN CYANIDATION OF HIRAD GOLD ORE

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KARIMI P.; ABDOLLAHI H.; AMINI A.; NOAPARAST M.

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Journal: AMIRKABIR Year:2010 | Volume:20 | Issue:71-C Page(s): 71-79

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Title

THE INVESTIGATION OF KINETICS BEHAVIOR OF GOLD AND SILVER LEACHING BY VARIOUS OXIDIZING REAGENTS IN CYANIDATION OF HIRAD GOLD ORE

Author(s)

KARIMI P. | ABDOLLAHI H. | AMINI A. | NOAPARAST M. | Issue Writer Certificate

Keywords

GOLD AND SILVER CYANIDATIONQ3

REACTION KINETICSQ3

OXIDIZING REAGENTQ3

Abstract

Kinetics behavior of gold and silver leaching by using of different OXIDIZING REAGENTs were investigated on high gold grade sample. Studied sample contains 10.5ppm gold, 1.67% arsenic and 2.1ppm silver. In order to increase gold and silver leaching kinetics by different OXIDIZING REAGENTs such as hydrogen peroxide (0.015M), air (0.5 lit/min) and mixture of H2O2 and air were studied. According to the results, the gold and silver leaching follows by 1st order kinetics model which can be shown as y=ymax (1-e-kx). Results indicated that introducing of air within the leaching process was more effective in kinetics rate increase of gold leaching (2.47min-1), whereas using mixture of air and H2O2 yielded similar results for the silver (0.596min-1). In addition, the gold and silver recoveries after 48 hours reached to 99.03 and 32.5%.

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APA: Copy

KARIMI, P., ABDOLLAHI, H., AMINI, A., & NOAPARAST, M.. (2010). THE INVESTIGATION OF KINETICS BEHAVIOR OF GOLD AND SILVER LEACHING BY VARIOUS OXIDIZING REAGENTS IN CYANIDATION OF HIRAD GOLD ORE. AMIRKABIR, 20(71-C), 71-79. SID. https://sid.ir/paper/1086/en

Vancouver: Copy

KARIMI P., ABDOLLAHI H., AMINI A., NOAPARAST M.. THE INVESTIGATION OF KINETICS BEHAVIOR OF GOLD AND SILVER LEACHING BY VARIOUS OXIDIZING REAGENTS IN CYANIDATION OF HIRAD GOLD ORE. AMIRKABIR[Internet]. 2010;20(71-C):71-79. Available from: https://sid.ir/paper/1086/en

IEEE: Copy

P. KARIMI, H. ABDOLLAHI, A. AMINI, and M. NOAPARAST, “THE INVESTIGATION OF KINETICS BEHAVIOR OF GOLD AND SILVER LEACHING BY VARIOUS OXIDIZING REAGENTS IN CYANIDATION OF HIRAD GOLD ORE,” AMIRKABIR, vol. 20, no. 71-C, pp. 71–79, 2010, [Online]. Available: https://sid.ir/paper/1086/en

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