摘要
针对辽宁五龙金矿四道沟分矿的金矿石,研究了影响OCl^- -I^-浸金体系的主要因素。得出了OCl^- -I^-体系浸出的最佳条件是:次氯酸钠的用量占矿浆体积的7%-9%,碘化钾浓度不小于0.25mol/L,pH值为偏酸性至中性,浸出时间为4h,在此条件下金浸出率可达85%以上。
For the gold-bearing ores of sidaogou submine of Wulong Gold Mine in liaoning province, major factors affecting gold leaching system with OCl^- -I^- were investigated. Optimum conditions obtained for OCl^- -I^- leaching system were that the dosage of sodium hypochlorite accounted for 7% -9% of pulp volume, the concentration of potassium io- dide was not less than 0.25 tool/L, the pH value was acidic to neutral and leaching time was 4 h. Under these conditions the leaching rate of gold was above 85%.
出处
《矿冶工程》
CAS
CSCD
北大核心
2010年第1期44-46,共3页
Mining and Metallurgical Engineering
基金
国家自然科学基金(50674042)
关键词
次氯酸钠-碘化物
金
浸出
浸出率
sodium hypoehlor/te-iodide
gold
leaching
leaching rate