乳化煤油制备及浮选石墨的实验研究  

Preparation of emulsified kerosene and experimental study on graphite flotation

作　　者：康文泽 张星达 赵亮 陈新江 Kang Wenze;Zhang Xingda;Zhao Liang;Chen Xinjiang(School of Mining Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China;Heilongjiang Baoquanling Agricultural Reclamation Yi Xiang Graphite Company Limited,Luobei 154200,China)

机构地区：[1]黑龙江科技大学矿业工程学院,哈尔滨150022 [2]黑龙江宝泉岭农垦溢祥石墨有限公司,黑龙江萝北154200

出　　处：《黑龙江科技大学学报》2024年第5期763-769,共7页Journal of Heilongjiang University of Science And Technology

摘　　要：为了研究乳化煤油对石墨浮选效果的影响,采用高速搅拌法,分别用Tween 80、Span 80制备了两种乳化煤油并分析其浮选效果。结果表明:制备乳化煤油的最佳参数是搅拌器转速4 500 r/min,搅拌时间8 min,Tween 80为乳化剂时,添加量1%,油水比1∶1.5;Span 80为乳化剂时,添加量2%,油水比1∶0.5;Tween 80乳化煤油与Span 80乳化煤油相比,乳液的粒径更小,分散性更好,两种乳化煤油均有良好的稳定性;粗精矿浮选实验与矿石开路实验中,两种乳化煤油的浮选效果明显优于煤油,在获得相同精矿回收率时,乳化煤油粗精矿浮选的节油率超过40%,矿石开路实验的节油率为25%,Tween 80乳化煤油浮选效果略好于Span 80乳化煤油。This paper aims to investigate the effect of emulsified kerosene on graphite flotation efficiency.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 optimal 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 addition 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 saving 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.

关 键 词：乳化煤油 浮选 高速搅拌 开路实验 

分 类 号：TD923[矿业工程—选矿] TD97