摘要
用Ｍｎｏ２，ＮａＣｌ和硫酸体系，低温氯化挥发的方法研究了北街地区金矿的提取，测定了该体系金挥发的基本数据．试验确定出处理北衙金矿的较好方案：在２８０℃下，北衙金矿氯化挥发４ｈ后，金的挥发率可以达到９０％以上．该方法比氰化法金的回收率高３０％，提取费用少三分之一，毒性较低．
A process of chloridizing fuming in the system MnO2-NaCl-H2SO4 was used to extract gold from Beiya Gold Mine, Yunnan Province. The basic data was determined experimentally and under the better condition the extraction rate of gold was > 90% at 280℃ for 4 hours. The recovery of gold of the process was 30% more than that of the cyaniding process, and the cost was 67% less than that of the cyaniding process. And the process was less poisonous.
出处
《昆明理工大学学报（理工版）》
1996年第6期11-15,共5页
Journal of Kunming University of Science and Technology(Natural Science Edition)
基金
青年基金
关键词
提取
炼金
氯化法
低温
chloridizing, fuming, extraction of gold
