This paper aims to investigate the effect of emulsified kerosene on graphite flotation effi-ciency.The study prepares two types of emulsified kerosene with Tween 80 and Span 80 respectively,by using the high-speed stirring method,and analyses their flotation effects.The results show that the opti-mal parameters for preparing emulsified kerosene are the addition amount by 1%and the oil-water ratio of 1∶1.5,while with the speed of 4 500 r/min,stirring time of 8 min,emulsifier Tween 80;and the addi-tion amount by 2%,and the oil-water ratio of 1∶0.5,while with the emulsifier Span 80.Compared with Span 80 emulsified kerosene,the emulsion particle size of Tween 80 emulsified kerosene is smaller with better dispersion,and the two kinds of emulsified kerosene have good stabilities.The flotation effect of the two types of emulsified kerosene are significantly better than that of kerosene in the flotation experiments of crude concentrate and open circuit experiment of ore.When obtaining the same concentrate recovery rate,the oil saving rate of emulsified kerosene crude concentrate flotation exceeds 40%,and the oil sav-ing rate of ore open circuit experiment is 25%.The flotation effect of Tween 80 emulsified kerosene is slightly better than that of Span 80 emulsified kerosene.
维普
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