| 含金固体废弃物焙烧—酸浸—氰化工艺研究 |
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| 引用本文： | 衷水平,吴在玖,廖元杭.含金固体废弃物焙烧—酸浸—氰化工艺研究[J].有色冶金设计与研究,2011,32(3):17-19,22. |
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| 作者姓名： | 衷水平 吴在玖 廖元杭 |
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| 作者单位： | 1. 低品位难处理黄金资源综合利用国家重点实验室(紫金矿业集团),福建厦门,361006
2. 福建金山黄金冶炼有限公司,福建上杭,364204 |
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| 基金项目： | 国家重点基础研究发展规划项目 |
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| 摘 要： | 针对某黄金冶炼厂产生的碎炭末、废水沉渣、废水处理塘泥等含炭复杂难选冶含金固体废弃物,进行了用焙烧—酸浸—氰化工艺处理该类物料的实验,结果表明,在以下工艺条件下,渣计金回收率可达99.4%左右,尾渣金品位小于10 g/t：焙烧温度600℃,焙烧时间1.5 h;室温下硫酸预处理1 h,硫酸浓度25%,液固比3∶1;氰化工序液固比3∶1,pH 10.5,氰化钠浓度3‰,氰化12 h。
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| 关 键 词： | 含金固体废弃物 焙烧 酸浸 氰化 |
Research on Roasting-acid ieaching-cyanidation of Gold-containing Solid Waste |
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| Authors: | ZHONG Shui-ping WU Zai-jiu LIAO Yuan-hang |
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| Affiliation: | ZHONG Shui-ping1,WU Zai-jiu2,LIAO Yuan-hang2(1.State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores,Zijin Mining Group Co.,Ltd.,Xiamen,Fujian 361006,China,2.Fujian Jinshan Gold Smelting Co.,Shanhang,Fujian 364204,China) |
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| Abstract: | Focusing on gold-containing solid waste produced in gold smeltery such as carbon powder,waste slag and wastewater treatment pond mud etc,the experiment using the technology of roasting-acid leaching-cyanidation was carried out.The results indicate that the recovery rate of gold in slag is about 99.4% and the gold concentration in slag is less than 10 g/t under the following conditions： the roasting temperature is 600 ℃,the roasting time is 1.5 h,the pre-treatment time of acid is 1h under room temperature,the acid concentration is 25%,the ratio of liquid to solid is 3∶1,the ratio of liquid to solid in cyanidation process is 3∶1,the pH value is 10.5,the concentration of sodium cyanide is 3‰ and the cyanidation time is 12 h. |
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| Keywords: | gold-containing solid waste roasting acid leaching cyanidation |
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