化工学报2016，Vol.67Issue(4)：1079-1089,11.DOI:10.11949/j.issn.0438-1157.20151352
氰化尾渣中有价元素回收现状与展望
Present situation and prospect of recovering valuable elements from cyanidation tailing
摘要
Abstract
The cyanidation tailing is a staple hazardous solid waste. It contains valuable elements, such as copper, lead, zinc, gold, silver, sulfur, iron,etc.. Comprehensive utilization of cyanidation tailing not only recovers these valuable elements to achieve the maximum use of mineral resources, but also reduces its damage to the environment. In this paper, the characterization of cyanidation tailing was introduced. As the cyanidation tailing came from the gold extraction by cyanidation, the particle was very fine, and the residual cyanide in the tailing pulp was as much as 400mg·L−1. Thus, appropriate pretreatment should be carried out, which can be classified as physical, chemical and special technical methods. The research status and existing problem of recovering copper-lead-zinc, sulfur-iron and gold-silver from cyanidation tailing were then presented in detail. Based on the existing problem of treating cyanidation tailing, the future research topics on the development of new flotation technological flowsheet, synthesis of new reagents and the reuse of ultimate tailing were proposed. The comprehensive utilization of cyanidation tailing would bring about economic and environmental benefits eventually.关键词
氰化尾渣/废物处理/有价元素/回收/浮选Key words
cyanidation tailing/waste treatment/valuable elements/recovery/flotation分类
矿业与冶金引用本文复制引用
吕翠翠,丁剑,付国燕,刘娅,鲁永刚,钱鹏,叶树峰..氰化尾渣中有价元素回收现状与展望[J].化工学报,2016,67(4):1079-1089,11.基金项目
国家高技术研究发展计划项目(2011AA06A104)；十二五国家科技支撑项目(2011BAC06B01,2012BAB08B04)。@@@@supported by the National High Technology Research and Development Program of China(2011AA06A104), the Projects in the National Science & Technology Pillar Program during the 12th Five-year Plan Period (2011BAC06B01,2012BAB08B04) （2011AA06A104）
