乳化捕收剂稳定性的探索及应用的研究  

Research and Application of Stability of Emulsifying Collector

作　　者：张峰 王怀法[1] Zhang Feng;Wang Huaifa(Taiyuan University of Technology,College of Mining Engineering,Taiyuan,Shanxi,China)

机构地区：[1]太原理工大学矿业工程学院

出　　处：《矿产综合利用》2019年第6期55-59,共5页Multipurpose Utilization of Mineral Resources

摘　　要：本文在前述试验的基础上,通过单因素试验从乳化剂HLB、搅拌转速、搅拌时间、温度等方面来探索乳化捕收剂稳定性的影响。结果表明:在乳化剂加入量为2%(质量分数),搅拌转速800 r/min,搅拌时间为12 min,温度25℃下所制得的乳液稳定性最佳。在微观状态下,乳化液中油滴分散的比较均匀,但是水包着的油滴不稳定,乳液颗粒之间容易兼并,形成较大的乳滴。精煤产率相同时,乳化柴油的用量是柴油用量的66.7%。在乳化柴油和普通柴油的分选指标相似的情况下,乳化柴油的用量较少,也说明了乳化后的柴油液滴对浮选的促进作用优于小液滴对矸石的捕收作用。Based on the above tests,the influence of emulsifier HLB,stirring speed,stirring time and temperature on the stability of emulsified collector was explored through single factor tests.The results showed that the stability of the emulsion was the best when the emulsifier content was 2% (mass fraction),the stirring speed was 800r/min,the stirring time was 12min,and the temperature was 25 C.Under the microcosmic condition,the oil droplets dispersed in the emulsion were more uniform,but the oil droplets wrapped in the water were unstable,and the emulsion particles easily merged,forming larger drops.When the yield of clean coal is the same,the amount of emulsified diesel oil is 66.7% of that of diesel oil.When the separation indexes of emulsified diesel oil and ordinary diesel oil are similar,the amount of emulsified diesel oil is less,which also shows that the promotion of emulsified diesel oil droplets on flotation is better than that of small droplets on gangue collection.

关 键 词：乳化 捕收剂 浮选 稳定性 

分 类 号：TD989[矿业工程—选矿]