Optimization of cyanidation parameters to increase the capacity ofAghdarre gold mill
Publish place: Journal of Mining and Environment، Vol: 5، Issue: 2
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JMAE-5-2_006
تاریخ نمایه سازی: 13 مرداد 1394
Abstract:
This study investigates the optimization of gold dissolution from Aghdarre ore. Therefore, a laboratory investigation was initiated, to improve the leaching conditions with the objective of maximizing mill capacity with no reduction on gold recovery. It was observed that the time reduction from 25 to 15 hours did not change gold recovery. In other words, it indicated that a capacity of 140t/h can be sustained without any detrimental effect on gold recovery. The optimum parameters were 700g/t NaCN, 46% solid in pulp, pH=10,and d80=45 microns using the Taguchi method. So, the gold recovery was obtained 90.71%. Also, it was concluded that the NaCN concentration was the most effective parameter and the solid percent plus retention time had the lowest effect on this process.
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Authors
B Ghobadi
Process Manager, NIPEC, Tehran, Iran
M Noaparast
School of Mining Eng., College of Eng., University of Tehran, Tehran, Iran
S. Z Shafaei
School of Mining Eng., College of Eng., University of Tehran, Tehran, Iran
M Unesi
PhD student, Tehran Science and Research branch of Islamic Azad University, Tehran, Iran