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| Chloride Volatilization Study on Gold Recovering From calcine of Refractory Gold Ore |
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Received:October 13, 2015
Revised:October 13, 2015
Accepted:October 20, 2015
Published Online:June 20, 2016
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| DOI： |
| KeyWord:refractory gold ore;calcine;volatilization;pellet-making;cyanide-free; |
| Author | Institution |
| GUO Chi-hao |
Beijing General Research Institute of Mining ＆Metallurgy |
| YUAN Chao-xin |
Beijing General Research Institute of Mining ＆Metallurgy |
| LIU Da-xue |
Beijing General Research Institute of Mining ＆Metallurgy |
| HU Lei |
Beijing General Research Institute of Mining ＆Metallurgy |
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| Abstract: |
| A test of pelletizing- chloride volatilizing was performed on calcine of refractory gold ore and factors effecting gold volatilization rate and pellet strength were investigated. Results indicated that under optimum conditions as: roasting temperature of 1150℃, roasting time of 1h, CaCl2 addition rate of 5%, volatilization rate of gold and silver can reach around 98% and 60% respectively while iron and gangue components of SiO2, Al2O3,CaO and MgO basically remain in fired pellet. Based on the result, a new process of recovering gold from calcine of refractory gold ore by chloride volatilization was developed. |
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