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| Gold Adsorption from Chlorination Leaching Solution of Refractory Gold Concentrate |
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Received:September 30, 2011
Revised:September 30, 2011
Accepted:October 08, 2011
Published Online:February 24, 2012
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| DOI：doi：10.3969/j.issn.1007-7545.2012.03.011 |
| KeyWord:refractory gold concentrate; ion exchange resin; leaching; adsorption |
| Author | Institution |
| KIM Chang-sok1,2, ZHANG Ting-an1, ZENG Yong1, HONG Jong-su1,2 |
1. 东北大学 材料与冶金学院 多金属共生矿生态化利用教育部重点试验室，沈阳 ;2. 金策工业综合大学 物理化学教研室，朝鲜平壤 |
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| Abstract: |
| Chlorination leaching and adsorption of gold on high-pressure oxidation residue of a domestic refractory gold concentrate were investigated. The results show that the gold leaching rate is 96.5% under the optimum conditions including sodium hypochlorite concentration of 10 g/L, pH=4, sodium chloride concentration of 75 g/L, temperature of 40 ℃, ratio of liquid to solid of 3∶1, stirring speed of 300 r/min and time of 120 min. The gold absorption rate is 99.2% when the above gold leaching solution is absorbed with 1 g/L 717 anion exchange resin at room temperature for 30 min. This process is simple, rapid with less pollution. |
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