熔融氯化挥发工艺处理凡口窑渣综合回收有价金属的研究  

Study on Comprehensive Utilization of Value Metal Enriched in Fankou Kiln by Using Molten Chlorination Volatilization Process

作　　者：刘志宏[1] 文剑[1] 李玉虎[1] 李启厚[1] 艾侃[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《有色金属（冶炼部分）》2005年第3期14-15,19,共3页Nonferrous Metals（Extractive Metallurgy)

摘　　要：采用熔融氯化挥发工艺综合回收凡口窑渣中的有价元素,考察了反应时间和氯化剂种类对有价金属挥发率的影响。结果表明:控制反应时间超过30min,以氯化钠作氯化剂,锗和铅的挥发率在90%以上,银挥发率超过80%,锌和铜的挥发率偏低(60%～70%)。该工艺具有自热、烟尘中有价元素富集比高等优点。A process of molten chlorination volatilizing is employed to comprehensive recycle Fankou kiln slag. The effects of the time and chlorides on volatilization ratio are investigated. The results show that under the experimental conditions of more than 30min., and NaCl as chloride, the volatility rate of Ge and Pb is higher than 90%, the volatility rate of Ag reaches 80%, the volatility of Zn and Cu is 60%～70%. This process has many advantages such as self-heating, high enrichment ratio of valuable elements.

关 键 词：渣 综合利用 熔融氯化工艺 

分 类 号：TD923.4[矿业工程—选矿] TF843[冶金工程—有色金属冶金]