矿产保护与利用Issue(3)：1-8,8.DOI:10.13779/j.cnki.issn1001-0076.2018.03.001
硫化矿物表面水化层结构及其对药剂作用的影响
Research on the Solid-liquid Interfacial Structure and Properties of Sulfide Minerals and Its Effect on the Flotation Reagent Adsorption
摘要
Abstract
The density functional theory was used to study the hydrophilic and hydrophobic struc-tures on the surface of sulfide minerals.The solid-liquid interface structure and hydration layer properties of sulfide minerals were revealed.The wetting thermodynamic and kinetic behaviors of sulfide minerals were studied by using a microcalorimeter.The effects of hydrophilic and hydropho-bic surfaces on the action of flotation agents were investigated.The results show that the surface of hydrophobic sulfide minerals is dominated by hydrogen bonds and Van der Waals forces, and the surface of hydrophilic sulfide minerals is dominated by weak chemical interactions.In the solid-liquid interface system, the adsorption of reagents on mineral surface has a hydration barrier and competitive adsorption effect.Based on the solid-liquid interface model, a new flotation technolo-gy of copper, lead and zinc have been developed to achieve clean and highly efficient recycling of non-ferrous metal sulfur resources.关键词
硫化矿/固液界面/水化层/浮选分离Key words
sulphide minerals/solid-liquid interface/hydration layer/flotation separation分类
矿业与冶金引用本文复制引用
陈建华,朱阳戈..硫化矿物表面水化层结构及其对药剂作用的影响[J].矿产保护与利用,2018,(3):1-8,8.基金项目
国家自然科学基金资助项目(51574092,51164001) （51574092,51164001）
