摘要
采用正交实验方法,考察了矿石粒度、矿浆含量、接种量对大冶露天矿石和井下矿石的摇瓶浸出过程的影响。结果表明:粒度对露天矿和井下矿的酸耗影响大,对井下矿的浸出率影响高度显著;矿浆含量对酸耗影响大,对浸出率则不显著;在接种的初期,接种量对酸耗与浸出率都有影响,2d后接种量的影响消失;井下矿浸出的最优工艺条件为:粒度<0.154mm,矿浆含量10%,接种量10%;露天矿浸出的最优工艺条件为:粒度<0.154mm,矿浆含量20%,接种量7.5%。
For the evaluation of bioleaching to open-pit mine and mine excavated underground, the effect of particle size, slurry content and inoculation amount on leaching was investigated. It is indicated that the influence of particle size on sulfuric acid consumption of open-pit mine and mine excavated underground is much effective, and on leaching rate of mine excavated underground is effective; the influence of slurry content on consumption of sulfuric acid is effective, while on leaching rate is just the opposite; at first the inoculation amount affect the consumption of sulfuric acid and leaching rate, while the influence will loss two days later. The optimum conditions for the leaching of open pit mine are as follows: particle size (<0.154 mm,) slurry content 20% and inoculation amount (7.5%,) while for mine excavated underground they are <0.154 mm, 10%, 10%, respectively.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2004年第2期286-290,共5页
The Chinese Journal of Nonferrous Metals
