摘要
本文通过对氧化亚铁硫杆菌浸出青海某地区低品位黄铜矿石的试验,探讨了接种量、矿石粒度、矿浆含量对黄铜矿石摇瓶浸出过程的影响。结果表明:在无菌硫酸浸出过程中,黄铜矿可以自发氧化分解,最终浸出率为15.98%;在有菌浸出过程中,氧化亚铁硫杆菌接种量为5/100(mL/mL)时铜浸出率最高可达31.16%。氧化亚铁硫杆菌浸出黄铜矿在接种量为5/100(mL/mL),矿石粒径为<104μm,矿浆含量为5/100(mL/mL)时较为适宜。
In this paper,for the evaluation of the Thiobacillus ferrooxidans bioleaching to the low-grade copper ores from Qinghai province,the effect of inoculation amount on leaching,particle size,and slurry content（m/V） was investigated.It is indicated that the leaching rate of chalcopyrite for copper in sulfuric acid medium was only 15.98%,but for bioleaching it was as high as 31.16% with inoculation amount 5%.The optimal conditions for chalcopyrite bioleaching with Thiobacillus ferrooxidans were pH 2.0,inoculation amount 5%,particle size 104 μm and slurry content（m/V） 5%.
出处
《矿物学报》
CAS
CSCD
北大核心
2012年第3期449-454,共6页
Acta Mineralogica Sinica
基金
国家科技支撑计划项目(2007BAB18B06)
关键词
低品位黄铜矿
细菌浸出
接种量
矿石粒度
矿浆含量
low-grade copper ores
bioleaching
inoculation amount
particle size
slurry content
