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| PRACTICE AND TEST ON RECOVERING GOLD FROM RESIDUES PRODUCED DURING AQUA REGIA DISSOLVED OPERATION |
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Received:June 26, 2006
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| DOI： |
| KeyWord:residues from aqua regia dissolved; pretreatment leaching; gold recovery |
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| 1. Hexi Gold Mine Company, Zhaoyuan 265402, Shandong , China ; 2. Beijing Univesity of Science and Technology, Beijing 100083, China |
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| Abstract: |
| Gold powder from zinc precipitation process is dissolved and purified with aqua regia in order to get gold product, and the final residues in the aqua regia still contain gold of about 2000g/t. If the residues can be returned to cynidation operation or the gold hydrometallurgy process, gold recovery is low. In this paper experiment in lab and industrial experiment show that high gold recovery was reached by pretreatment leaching firstly and then returned the residues to cynidation operation. |
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