文章摘要
焙烧氰化尾渣中金、银和铁的回收利用研究进展
Research Progress of Recycling Gold, Silver and Iron from Roasted Cyanide Tailings
投稿时间:2017-04-24  
DOI:
中文关键词: 冶金技术  焙烧氰化尾渣        综合回收
英文关键词: metallurgy  roasted cyanide tailings  gold  silver  iron  comprehensive utilization
基金项目:
作者单位E-mail
边振忠 北京科技大学 土木与资源工程学院北京 100083 bzhenzhong@163.com 
傅平丰 北京科技大学 土木与资源工程学院北京 100083;金属矿山高效开采与安全教育部重点实验室北京 100083 pffu@ces.ustb.edu.cn 
李振宇 北京科技大学 土木与资源工程学院北京 100083  
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中文摘要:
      焙烧氰化尾渣是黄金生产排放的一类危险固体废物,其中的金、银和铁等有价金属元素仍可作为二次资源利用。系统总结了国内外在回收焙烧氰化尾渣中金、银和铁的研究进展,分析了磁化焙烧法、硫脲浸出法、氯化浸出法、高温氯化焙烧法、强酸预浸-氰化浸出法、直接还原焙烧法和细磨法在资源综合回收利用中的优缺点,指出焙烧氰化尾渣的资源化、减量化和无害化的发展方向。
英文摘要:
      Roasted cyanide tailings (RCTs) are the hazardous solid wastes discharged in the gold production. Due to a large amount of remained valuable elements such as gold, silver and iron, RCTs are considered as the recyclable secondary resources. The research progress in the recycling of gold, silver and iron from the RCTs around the world has been systematically summarized in the present paper. The recycling techniques include magnetic roasting, thiourea leaching, chloridizing leaching, high-temperature chloridizing roasting, acid leaching followed by cyanidation leaching, direct reduction roasting and ultra-fine grinding. Both the advantages and disadvantages of the reported processes were discussed in the comprehensive utilization of RCTs. The trend for recycling, reduction and detoxification of RCTs was proposed.
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