氧化铅锌矿浮选法研究进展

随着易选硫化铅锌矿石资源的日渐减少，市场对铅锌金属的强烈需求推动了难选氧化铅锌矿石浮选技术的进步。为了系统展示难选氧化铅锌矿石浮选技术的进展，从硫化钠硫化浮选法和硫磺硫化浮选法等2方面总结了硫化浮选技术的进展情况，从重选-浮选联合工艺和选冶联合工艺等2方面总结了联合工艺技术的进展情况，从絮凝浮选法、螯合剂浮选法、组合捕收剂浮选法和组合抑制剂浮选法等4方面总结了基于新药剂的浮选技术进展情况，最后对氧化铅锌矿石浮选技术发展的方向展望。

Characters and Application Prospect of Bauxite Tailings

Aluminum is the most abundant metal element in the earth and is an important resource for the development of national economy. It occurs mainly in the form of bauxite, which is characterized by low aluminum-silicon ratio in China and therefore will produce a large quantity of tailings after beneficiation, leading to a series of problems such as environment pollution and resource waste. In addition, bauxite tailings are difficult to utilize due to their complex mineral composition as they contain diaspore, kaolinite, anatase and silicon dioxide. The mineral composition, crystal structure and thermodynamic behavior of bauxite tailing were characterized by XRD, SEM and TGA-DTA methods. Based on this, the comprehensive utilization and the application prospect of bauxite tailings are discussed, aiming at solving bauxite tailingsrelated environment pollution and resource waste problem so as to realize a cycle economy and resource cherishment.