中南大学学报（自然科学版）2017，Vol.48Issue(12)：3147-3151,5.DOI:10.11817/j.issn.1672-7207.2017.12.002
氧化钼/CPC界面吸附层结构对浮选行为的影响
Influence of adsorbed layer structure of CPC/molybdite interface on flotation
摘要
Abstract
The adsorbed layer structure of CPC/molybdite interface and its effect on flotation were studied through Zeta potential measurements, adsorbed amount tests, fluorescence probe and micro-flotation. The results show that the IEP of molybdite is 1.9 and it is negative charged in pH range of 2-12. The adsorption of CPC depends on molybdite by electrostatic force and hydrophobic force. A CMC value of 9.6×10-4 mol/L is obtained by adsorption isotherm, and the four region model is suitable for the adsorption of CPC on molybdite. When the CPC concentration is below CHC, the electrostatic force is the reason for adsorption between CPC and molybdite, while hydrophobic force is responsible for the adsorption at the CPC concentration over CHC. The greatest hydrophobicity is achieved around CHC. Mineral recovery declines when the collector concentration surpasses its CHC.关键词
氧化钼/吡啶捕收剂/吸附/表面微极性/浮选Key words
molybdite/pyridine/adsorption/micropolarity/flotation分类
矿业与冶金引用本文复制引用
王振,徐龙华,肖军辉,王进明,傅开彬,张海阳..氧化钼/CPC界面吸附层结构对浮选行为的影响[J].中南大学学报（自然科学版）,2017,48(12):3147-3151,5.基金项目
国家自然科学基金资助项目(51504199,51304162)(Projects(51504199, 51304162) supported by the National Natural Science Foundation of China) （51504199,51304162）
