矿产保护与利用Issue(3)：31-36,6.DOI:10.13779/j.cnki.issn1001-0076.2018.03.006
辉钼矿晶面各向异性及其对浮选的影响机制
Anisotropy of Molybdenite Surface and Its Effects on Flotation Mechanism
摘要
Abstract
The crystal anisotropy of molybdenite makes its "surface" and "edge" have very differ-ent properties, which further affects the flotation behavior of molybdenite.Through density func-tional theory, the reasons for the differences in the properties of molybdenite " surface" and "edge"are demonstrated from the atomic level, and the effects of water, kerosene, and xanthate on the surface of molybdenite are discussed.The results show that the " surface" of the molybdenite is strongly hydrophobic and the "edge" is strongly hydrophilic.In addition, kerosene is mainly ad-sorbed on the S-containing atomic face of molybdenite by electrostatic interactions, whereas xan-thate is adsorbed on molybdenum "edge" by the bonding interaction of the S atom in its C-S sin-gle bond with Mo atom at the molybdenite "edge".关键词
辉钼矿/密度泛函理论/晶面性质/吸附Key words
molybdenite/density functional theory/surfaces properties/adsorption分类
矿业与冶金引用本文复制引用
魏桢伦,李育彪..辉钼矿晶面各向异性及其对浮选的影响机制[J].矿产保护与利用,2018,(3):31-36,6.基金项目
国家自然科学基金项目(51604205,51774223) （51604205,51774223）
湖北省自然科学基金项目(2016CFB268) （2016CFB268）
