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| Investigation on Gold Recovery from High Arsenic Sulfur Bearing Gold Concentrate |
| Received:July 05, 2011 |
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| DOI：doi：10.3969/j.issn.1007-7545.2012.01.011 |
| KeyWord:pressure leaching; refractory gold concentrate; high arsenic bearing gold concentrate; cyaniding |
| Author | Institution |
| DUAN Dong-ping, ZHOU E, CHEN Si-ming, LI Ting, XIA Guang-xiang |
中国科学院 过程工程研究所，北京 |
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| Abstract: |
| Guangxi Guigang gold concentrate contained 15%~22% As, carbon, lead and other detrimental element, gold direct cyaniding recovery was 8%~36%. Gold cyaniding recovery reached 92%~98%, summary gold recovery after flotation of cyanide residue reached 97%~99% with pretreatment of catalytic oxidation acid leaching. The pre-oxidation process could be operated in self-heating, low pressure, low acidity operation conditions. Waste residue and effluent complied with environmental requirements. Results of laboratory experiments and pilot trials indicate that this technology route is stable and feasible. |
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