Fine particle aggregating and flotation behavior induced by high intensity conditioning of a CO2 saturation slurry

被引：0
作者：
SUN Wei
机构：
来源：
International Journal of Mining Science and Technology | 2009年 / 19卷 / 04期
基金：
中国国家自然科学基金;
关键词：
CO2; saturation; high intensive conditioning; cavitation; aggregation; flotation;
D O I：
暂无
中图分类号：
TD952 [有色金属矿选矿];
学科分类号：
081902 ;
摘要：
The influence on fine particle aggregation and flotation behavior induced by high intensity conditioning(HIC) from saturated of the slurry with CO2 saturation was investigated.Bubble size measurements were conducted.The effect of dissolved gas,xanthate addition and agitation speed on fine sphalerite particle aggregation-and flotation-behavior were studied.The results show that during HIC in air or CO2 saturated water xanthate acts as a frother.The dissolved gas content in the pulp and HIC play a synergistic role in promoting fine particle aggregation and hence flotation;a significantly enhanced aggregation of fine sphalerite particles in a CO2 saturated slurry by HIC is observed.The aggregate size increased when the agitation speed was increased from 700 r/min to 1500 r/min.Increasing the HIC speed to 1500 r/min caused a positive impact on flotation kinetics.Further increasing the speed to 2000 r/min resulted in an adverse effect on flotation kinetics.
引用
收藏
页码：483 / 488
页数：6
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[1]  
The effect of high intensity conditioning on the flotation of a nickel ore. Part 1: Size-by-size analysis[J] . G Chen,S Grano,S Sobieraj,J Ralston.Minerals Engineering . 1999 (10)
[2]  
Role of hydrodynamic cavitation in fine particle flotation[J] . Z.A. Zhou,Zhenghe Xu,J.A. Finch,H. Hu,S.R. Rao.International Journal of Mineral Processing . 1997 (1)
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