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| Gold Leaching Test of a New Type of Leaching Agent in a Low-grade Gold Deposit in Fujian Province |
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Received:June 21, 2020
Revised:June 25, 2020
Accepted:June 28, 2020
Published Online:January 29, 2021
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| DOI： |
| KeyWord:low-grade gold deposit; Golden cicada; All-slime leaching; Column leaching; Leaching rate |
| Author | Institution |
| HE Meili |
Zijin Mining Group Co.,Ltd. Shanghang Fujian |
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| Abstract: |
| a porphyry gold deposits in fujian, low grade, large scale, gold mainly exists in the form of natural gold, visible gold granularity coarser.For the efficient utilization of the low grade gold mine, we carried out all-slime leaching and column leaching experiment using golden cicada as a new type of gold leaching agent, the results show that the all-slime leaching on grinding fineness is 0.074 mm accounted for 80%, pulp density 25%, add lime adjust pH to about 11.0 , the initial golden cicada concentration of 500 mg/L and control in the process of golden cicada concentration under the condition of not less than 300 mg/L leaching 20 h, the leaching rate of gold was 93.43%, golden cicada consumption was 1.02 kg/t; The cumulative gold leaching rate and the cumulative gold cicada consumption were 86.54% and 1.22kg/t, respectively, under the condition of column leaching with the ore particle size of -30mm for 23 days. |
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