Title of article :
Optimization of cyanidation parameters to increase the capacity of Aghdarre gold mill
Author/Authors :
Ghobadi، B نويسنده Process Manager, NIPEC, Tehran, Iran Ghobadi, B , Noaparast، M نويسنده School of Mining Eng., College of Eng., University of Tehran, Tehran, Iran Noaparast, M , Shafaei، S. Z نويسنده School of Mining Eng., College of Eng., University of Tehran, Tehran, Iran Shafaei, S. Z , Unesi، M نويسنده PhD student, Tehran Science and Research branch of Islamic Azad University, Tehran, Iran Unesi, M
Issue Information :
دوفصلنامه با شماره پیاپی 0 سال 2014
Abstract :
در ايي هقبل بزرسي در ه رَد ب يْ سبسي حلاليت طلاي ه جَ دَ در هبد هعد يً آق در ا جًبم ضد است؛ ب بٌبزايي كبر بب ب بْ دَ ضزايط ا حًلال، بب دّف حداكثز كزدي
ظزفيت كبرخب ،ًِ بد يٍ كب صّ ببسيببي طلا آغبس ضد. در ايي هطبلع هطب دّ ضد ك كب صّ سهبي اس 25 ب 15 سبعت، ه جَب تغييز ببسيببي طلا طًد. ب عببرت ديگز،
دلالت بز آي داضت ك ظزفيت 140 تي بز سبعت هيت اَ دً بد يٍ يّچ تاثيز ه فٌي بز ببسيببي طلا ثببت بوب دً. هقبديز ب يْ پبراهتز بّ ك ب ر شٍ تبگ چَي ب دست
آهد دً، عببرتا دً اس: 700 گزم بز تي NaCN ;10 ، ، درصد جبهد پبلپ 46 pH 80;45 d 90 % ب دست آهد. / هيكز يٍ. بب ت جَ ب ايي ضزايط، ببسيببي طلا بزابز 71
وّچ يٌي تًيج گيزي ضد ك غلظت NaCN بيطتزيي تاثيز درصد جبهد ب علا سهبي هب دً كوتزيي تاثيز را در فزآي دٌ داضت دٌ.
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.
Journal title :
Journal of Mining and Environment
Journal title :
Journal of Mining and Environment