摘要
苏丹某金矿为低品位贫硫石英脉型金矿,金主要赋存于脉石矿物粒间,以中、粗粒级嵌布为主。为给该矿石的开发利用提供依据,对其进行了柱浸—活性炭吸附试验研究。结果表明:在给矿粒度为-20 mm、浸液p H=10.5~11、氰化钠浓度为0.10%、喷淋强度为20 L/(m^2·h)、喷淋时间为16 d时,金的浸出率可以达到73.51%。对活性炭A和活性炭B进行磨损试验和饱和吸附容量对比试验,结果显示活性炭A综合吸附性能更好。在活性炭A投加量为8 g/L、吸附时间为20 h时对浸液进行金吸附试验,金的吸附率可以达到99.67%。试验结果可以为该金矿资源的开发利用提供技术依据。
A low grade gold ore from Sultan with poor sulfide was quartz-vein gold deposit. Native gold mainly embedded in quartz minerals as middle and coarse particle size. Column Leaching-activated carbon adsorption experiments were conducted to provide technique basis for the development of the ore. Results indicated that at the feed size of-20 mm,p H value of 10. 5 ~11,concentration of sodium cyanide of 0. 10%,spray intensity of 20 L/（ m^2·h）,leaching time of 16 d,gold leaching rate can reach 73. 51%. Comparison tests on abrasion and saturated sorption capacity were conducted on activated carbon A and activated carbon B,activated carbon A has relatively better adsorption properties. With activated carbon A dosage of 8 g/L,adsorption time of 20 h,gold leaching test was conducted on the leaching solution,the gold adsorption rate can reach 99. 67%. The results can provide technique basis for the development and utilization of the gold resources.
出处
《金属矿山》
CAS
北大核心
2016年第4期72-76,共5页
Metal Mine
关键词
金矿
氰化
柱浸
活性炭吸附
Gold ore
Cyaniding
Column leaching
Activated carbon adsorption
