金属镁离子活化石英浮选的机理研究  

Research on flotation mechanism of quartz using magnesium ion as activator

作　　者：银锐明[1] 陈琳璋[1] 侯清麟[1] 袁毅[1] 刘泰荣[1] 

机构地区：[1]湖南工业大学包装与材料工程学院,湖南株洲412007

出　　处：《功能材料》2013年第15期2193-2196,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51174085;51274093)

摘　　要：采用浮选实验、zeta电位测试、红外光谱分析以及Mg2+离子溶液水解化学计算,系统研究了Mg2+离子对石英表面zeta电位和石英浮选回收率的影响规律。结果表明,在pH值为11.0,Mg2+离子浓度和捕收剂浓度相等时,Mg2+离子活化石英浮选的性能最佳。Mg2+离子主要是以Mg(OH)+的形式对阴离子捕收剂浮选石英产生的活化效果,而当Mg2+离子水解组分中的Mg(OH)2沉淀达到一定浓度时,开始抑制捕收剂浮选石英。This paper systematically studied the effect of magnesium ion on zeta potential of the quartz surface and the flotation recoveries of the quartz through flotation experiment,zeta potential measurement,infrared spectroscopy and solution chemistry of magnesium calculation.The results showed that when the pH value was 11.0,and the concentration of magnesium ion was equal to the concentration of collector,the performance of quartz flotation activated by magnesium ion was the best.Mg（OH）＋ was the main active ingredient that activate flotation of quartz in the system of anionic collector dodecyl sulphate,and when magnesium hydroxide reaches a certain concentration,flotation of quartz began to be inhibited.

关 键 词：浮选 石英 镁离子 活化 

分 类 号：TD91[矿业工程—选矿] TD164.2