摘要
针对选冶末端产生的高泥炭、碎炭末、废水沉渣、废水处理塘泥等含金废渣,研究开发了焙烧—酸浸—氰化工艺,获得了优化的工艺条件;并研究了该工艺与现有金精矿沸腾焙烧—酸浸—氰化工业生产工艺的匹配。结果表明,两种工艺能完美匹配,控制含金废渣与金精矿的合适配比,同时匹配相应的双环式雾化进料技术及焙烧气氛,Au、Cu的回收率分别达94.37%和85.07%,实现了高效、节能、环保工业化生产。
Focusing on gold-containing waste residue produced in the terminal process of gold beneficiation and metallurgy such as high carbon mud,carbon powder,waste slag and wastewater treatment pond mud etc,the technology of roasting-acid leaching-cyanidation was studied,the optimized condition was obtained and the process match with industrial technology of fluidized roasting-acid leaching-cyanidation was researched.The results showed that these two processes could match perfectly.By controlling the ratio of gold-containing waste residue to gold concentrate and matching corresponding dicyclic atomization feeding technology and calcination atmosphere,the recovery rate of Au and Cu was 94.37% and 85.07% respectively,which realized high efficiency,energy saving and environmental production.
出处
《矿产保护与利用》
2012年第3期46-50,共5页
Conservation and Utilization of Mineral Resources
基金
国家重点基础研究发展规划项目(编号:2012CB724202)
关键词
含金废渣
沸腾焙烧
酸浸
氰化
匹配
工业化
gold-containing waste residue
fluidized roasting
acid leaching
cyanidation
matching
industrialization
