金属离子配位调控分子组装浮选理论及其研究进展

Flotation theory and research progress of metal ion coordination regulation molecule assembly

在矿物浮选过程中,金属离子发挥着重要的作用,特别是活化浮选作用。在氧化矿的金属离子活化浮选过程中,金属离子与浮选药剂形成的金属-有机/无机配合物在矿物浮选过程中发挥了极大的作用,并在捕收能力和选择性等方面体现出一定的优势。本文总结了苯甲羟肟酸铅配合物、油酸钙、盐化水玻璃、金属离子改性淀粉等在浮选领域的研究进展,并从金属离子配位调控分子组装的角度,提出金属离子在矿物浮选过程中的新作用机制。金属离子具有良好的模板效应,可以定向调控金属配合物结构实现功能组装,这一功能为新型浮选药剂的设计与开发提供了新的思路。

Metal ions play an important role in mineral flotation,especially in activation flotation.Recently,some studies show that metal-organic/inorganic complexes form by metal ions and flotation agents play important role in mineral flotation.The metal-organic/inorganic complexes show certain advantages over the traditional flotation reagents in terms of collecting capacity and selectivity.This paper summarizes the application of lead benzohydroxamic acid complex,calcium oleate,water glass modified by metal ions,and modified starch-in mineral flotation separation.Metal ions are good templates for molecular assembly and can be used to control the structure of metal complexes and get some special properties.This function provides a new idea for the design and development of new flotation agents.