钛铁矿浮选药剂作用机理及进展

针对我国钛铁矿日益难选的现状，从捕收剂和调整剂两方面对钛铁矿浮选药剂进行了梳理和总结。针对捕收剂，研究其化学组成及矿物表面的作用机理，并且阐述了脂肪酸类、膦酸类和羟肟酸类等单一的捕收剂与新型组合捕收剂各自的优缺点，单一捕收剂存在一定的局限性，新型组合类捕收剂是未来发展的方向；针对调整剂，分析了活化剂和抑制剂对浮选分离的作用，活化剂一是增强矿石表面金属质点的活性，二是增加矿物表面的活化位点达到活化钛铁矿的目的；抑制剂主要是在脉石矿物表面生成某种选择性的胶体从而阻隔捕收剂与脉石矿物发生反应。通过对钛铁矿浮选药剂种类及作用机理分析，为选矿生产实践提供技术参考。 

Action Mechanism and Progress of Ilmenite Flotation Reagents

In view of the increasing difficulty of ilmenite flotation in China, the flotation reagents of ilmenite are summarized from two aspects of collectors and regulators. Aiming at collectors, the chemical composition and the mechanism of mineral surface action are studied. The advantages and disadvantages of single collector such as fatty acid, phosphonic acid and hydroxamic acid and new combination collector are expounded. There are some limitations in single collector. New combination collector is the direction of future development. The flotation separation of activator and inhibitor is analyzed for adjusting agent. Activators enhance the activity of metal atoms on ore surface and increase the activation sites on mineral surface to activate ilmenite. Inhibitors mainly produce selective colloids on the surface of gangue minerals to prevent the reactions between collectors and gangue minerals. Through the analysis of ilmenite flotation reagent types and theiraction mechanisms, the present papercan provide technical reference for beneficiation practice.