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| Pilot-plant Scale Experiment on Hydrometallurgical Process of Multi-metal Silver Concentrate |
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Received:September 30, 2011
Revised:September 30, 2011
Accepted:October 08, 2011
Published Online:May 31, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.06.012 |
| KeyWord:multi-metal concentrate; Au; Ag; hydrometallurgy; oxidative ammonia leaching-cyaniding |
| Author | Institution |
| DUAN Dong-ping |
中国科学院过程工程研究所 |
| ZHOU E |
中国科学院过程工程研究所 |
| CHEN Si-ming |
中国科学院过程工程研究所 |
| LI Ting |
中国科学院过程工程研究所 |
| XIA Guang-xiang |
中国科学院过程工程研究所 |
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| Abstract: |
| Pilot-plant scale of 6 kg and 30 t/d experiments were carried out on the multi-metal silver concentrate based on the prior laboratory test result. The results show that deleading rate of ammonia leaching residue is up to 93%, cyaniding leaching rate of Au in deleading residue is above 95%, and 97% of Ag extraction rate is achieved with dosage of NaCN per ton residue of 20 kg. The results of pilot-plant scale experiments are in agreement with those of laboratory test. According to the economic accounting of industrial test, investment cost will be recovered within 3 years. |
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