分散剂对高泥化低选择性煤泥浮选效果影响研究  

Study on Dispersant to Floatation Effect of High Mud and Low Selectivity Slime

作　　者：王彩丽[1] 宋书宇[1] 张宁[1] 樊民强[1] 

机构地区：[1]太原理工大学矿业工程学院,太原030024

出　　处：《煤炭技术》2016年第4期290-292,共3页Coal Technology

基　　金：国家自然科学基金项目(50974094)

摘　　要：通过在浮选试验中添加六偏磷酸钠、碳酸钠、氢氧化钠和水玻璃等不同用量的分散剂对山西大远选煤厂高泥化低选择性煤样进行浮选,根据试验结果及煤粒表面电位分析不同分散剂对该煤样的作用效果及机理。研究表明,所选分散剂均能够增加细粒煤表面负电位,改善浮选效果。The floatability of the high mud and low selectivity coal slime obtaind from Shanxi Dayuan coal preparation plant was investigated by adding different dosage dispersants of sodium hexametaphosphate,sodium silicate, sodium carbonate and sodium hydroxide in the floatation experiment. The action effect and mechanism of the different dispersants affected to the high mud and low selectivity coal slime were analyzed according to the experiment results and Zeta potential. The results showed that the dispersant selected could effectively improve the floatation effect and the surface negative potential of coal slime.

关 键 词：分散剂 浮选 高泥化低选择性煤泥 

分 类 号：TD94[矿业工程—选矿]