黄铁矿烧渣中金银资源利用进展  

Research advances in the reclamation of gold and silver from pyrite slag

作　　者：李宇亮[1] 关卫省[1] 石旭东 王倩[1] 李绍卿[1] 

机构地区：[1]长安大学环境科学与工程学院,陕西西安710054 [2]陕西省产品质量监督检验所,陕西西安710054

出　　处：《应用化工》2009年第11期1671-1674,共4页Applied Chemical Industry

基　　金：国家自然科学基金项目(20877036);陕西省自然科学基金项目(2006Z06)

摘　　要：我国每年生产排放的含金银黄铁矿烧渣数量较大,传统的堆填处理方法既污染环境又浪费了其中的可回收金属资源。对于烧渣中有价金属的回收主要集中于金银的提取。综述了黄铁矿烧渣的利用现状以及氰化法回收烧渣中金银的影响因素。着重讨论了金银存在状态、干扰元素、焙烧温度、氰化钠用量、氰化温度、氰化浸出时间对金银氰化回收的影响。并讨论了氰化法回收金银仍存在的一些问题和研究展望。The output of different kinds of pyrite slag containing gold and silver is enormous annually in China. The traditional treatment is to pile and file which not only cause the environmental pollution also waste the metal resources. Reclaiming metal from pyrite slag is mainly the gold and silver. The present utilize condition of pyrite slag and the affect factors to the cyanide process to reclaim gold and silver were reviewed. The influences of state of gold and silver, obstacle elements, bake temperature, dosage of sodium cyanide, cyanide temperature, cyanide time to the recycle rate of gold and silver were researched. The existed problems and the research prospect were also discussed.

关 键 词：黄铁矿烧渣 金银 氰化法 干扰元素 

分 类 号：X756[环境科学与工程—环境工程]