矿产保护与利用Issue(3)：71-76,6.DOI:10.13779/j.cnki.issn1001-0076.2018.03.013
稀土矿浮选中Ce3+离子对方解石的活化作用机理研究
Research on Activation Mechanism of Ce3+ Ions on Calcite in Rare Earth Ore Flotation
摘要
Abstract
The activation mechanism of Ce3+ ions on calcite in rare earth ore flotation using octano-hydroxamic acid as collector was studied by single mineral flotation experiment, IR spectroscopy and Zeta potential measurement.The flotation results show that Ce3+ ions could activate the flota-tion of calcite at pH 6～11 when the Ce3+ concentration was less than 1×10 -4mol/L and OHA concentration was 2.5×10 -4mol/L.The mechanism results show that Ce3+ ions could act as the active site on calcite surface, which reacted with OHA ions to form stable five-membered ring chelate.Therefore, the adsorption of collector OHA on calcite was promoted and thus calcite flota-tion was activated.关键词
方解石/氟碳铈矿/Ce3+离子/活化Key words
calcite/bastnaesite/Ce3+ ions/activation分类
矿业与冶金引用本文复制引用
屈奇奇,曹钊,张文博,胡轶文,黄英豪,许杰..稀土矿浮选中Ce3+离子对方解石的活化作用机理研究[J].矿产保护与利用,2018,(3):71-76,6.基金项目
国家自然科学基金(51764045) （51764045）
内蒙古自治区研究生科研创新项目(S20171012703) （S20171012703）
