矿产保护与利用Issue(1)：66-71,6.DOI:10.13779/j.cnki.issn1001-0076.2018.01.011
常见金属离子对白云母和石英浮选特性的影响
Effect of Common Metal Ions on the Flotation Performance of Muscovite and Quartz
摘要
Abstract
In order to provide theoretical basis for the flotation separation of muscovite and quartz, the flotation performance and Zeta potentials of pure muscovite and quartz were investigated using dodecylamine and sodium oleate in the presence of Ca2+,Mg2+,Fe3+and Al3+.The results indi-cated that metal ions could increase the Zeta potential of muscovite and quartz, which affected the adsorption between collectors and minerals. When using dodecylamine as the collector, Ca2+and Mg2+could increase the Zeta potential of both minerals, which decreased the electrostatic adsorp-tion strength and depressed their flotation. Fe3+and Al3+could change make the Zeta potential of both minerals from negative to positive at pH=4-6, which greatly hindered the electrostatic ad-sorption between minerals and collector. When using sodium oleate as the collector, metal ions could activate the flotation of both minerals. The activation was more obvious with higher ion va-lences and higher pH values. Ca2+and Mg2+showed a more intense activation effect than Al3+and Fe3+in strong alkaline conditions.关键词
白云母/石英/金属离子/浮选/Zeta电位Key words
quartz/mica/metal ions/flotation/Zeta potential分类
矿业与冶金引用本文复制引用
邹志雄,罗惠华,汤家焰..常见金属离子对白云母和石英浮选特性的影响[J].矿产保护与利用,2018,(1):66-71,6.基金项目
湖北省技术创新重大项目(2017ACA187) （2017ACA187）
