多糖在硫化矿物浮选中的应用及其作用机理  

The Application of Polysaccharides in Sulphide Flotation and Their Interaction Mechanisms

作　　者：李晔[1] 彭勇军[1] 刘奇[1] 许时[1] 

机构地区：[1]武汉工业大学资源与环境工程系

出　　处：《武汉化工学院学报》1998年第2期39-43,共5页Journal of Wuhan Institute of Chemical Technology

摘　　要：系统地论述了多糖（即淀粉、糊精、纤维素及其衍生物）在硫化矿浮选中的应用及其作用机理．多糖在硫化矿表面的作用有氢键作用和化学作用．通过糊精在冰铜、黄铜矿和方铅矿表面吸附和浮选试验发现，糊精主要与硫化矿表面金属羟基化合物发生化学作用．在此基础上，通过加入ＫＥＸ和糊精，成功地实现了黄铜矿从方铅矿中浮选分离．In this paper,the application and interaction mechanisms of polysaccharides including starch,dextrin,cellulose and cellulosic derivatives on various sulphides are summarized and it is found that there are hydrogen bounding and chemical interaction between polysaccharides and sulphides.By the adsorption test of dextrin on matte,chalcopyrite and galena,and flotation test,the results show that dextrin adsorbs on the sulphide surface through chemical interaction with the surface metal hydroxide.In the presence of KEX and dextrin the chalcopyrite was successfully separated from galena.

关 键 词：多糖 硫化矿 浮选 作用机理 浮选剂 分离 

分 类 号：TD923.1[矿业工程—选矿]