矿产保护与利用2024，Vol.44Issue(3)：1-15,15.DOI:10.13779/j.cnki.issn1001-0076.2024.03.001
磷矿中磷灰石及脉石矿物浮选表面化学研究进展
Research Progress in Surface Chemistry of Flotation for Apatite and Gangue Minerals in Phosphate Ore
摘要
Abstract
Phosphate ore is a strategic key mineral resource.China's phosphate ore reserves rank second in the world,mainly consisting of sedimentary phosphate rocks.Due to the fact that phosphate rock is an accumulation formed by exogenesis,composed of cryptocrystalline or microcrystalline apatite and other gangue minerals,and the surface wettability,surface electrical properties,and surface adsorption of apatite and gangue minerals are similar,making flotation separation difficult.Surface chemistry of flotation is an important theoretical basis for the flotation of phosphate ores and the key to achieving selective separation between different minerals.This article provides an overview of the crystal chemical characteristics and the surface characteristics such as the surface wettability,the electrical properties,and adsorption characteristics of the main useful minerals in phosphate rock,including apatite and main gangue minerals such as dolomite and quartz.It also discussed the changing characteristics of surface wettability under different flotation agents,the double layer structure of minerals in aqueous solutions,the active sites on mineral surfaces,and the adsorption configuration of collectors.On this basis,the influence of unavoidable ions on the flotation behavior of apatite and gangue minerals was summarized.It is expected to provide the theoretical support for the flotation separation of Medium-low grade phosphate ore.关键词
磷灰石/白云石/石英/浮选表面化学/晶体化学特征/表面性质/难免离子Key words
apatite/dolomite/quartz/flotation surface chemistry/crystal chemical characteristics/surface properties/unavoidable ions分类
矿业与冶金引用本文复制引用
张覃,卯松,黄小芬,陈傲傲,张文彬..磷矿中磷灰石及脉石矿物浮选表面化学研究进展[J].矿产保护与利用,2024,44(3):1-15,15.基金项目
国家自然科学基金项目(52164018) （52164018）
