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| Study on Adsorption Performance of Gold Cyanide Complex-Ion by Natural Organic Carbonaceous |
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Received:May 28, 2017
Revised:May 31, 2017
Accepted:June 01, 2017
Published Online:June 19, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.07.013 |
| KeyWord:organic carbon; carbonaceous rock; adsorption; gold |
| Author | Institution |
| SU Xiu zhu |
厦门紫金矿冶技术有限公司 福建 厦门 |
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| Abstract: |
| Carbonaceous rock bearing organic carbon but free from gold was selected to investigate adsorption of natural organic carbon on gold cyanide complex-ion in precious liquid. The results show that natural organic carbon has different adsorption ability in different gold complex-ion systems, such as, content of natural organic carbon is 11 times higher in [Au(CN)4]- system than that in [AuI4]- system. In [Au(CN)4]- system, the initial adsorption rate is very high with thin film diffusion controlling type, but finally turns to be very slow with particle diffusion controlling. The adsorption type accords with Freundlich model when gold cyanide concentration is 3~70 μg/mL. |
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