白钨矿与含钙脉石浮选分离的研究  

Flotation separation of scheelite from calcium gangue minerals

作　　者：周晓彤[1] 李英霞[1] 邓丽红[1] 胡红喜[1] 付广钦[1] 

机构地区：[1]广州有色金属研究院,广东广州510650

出　　处：《中国矿业》2014年第2期107-111,115,共6页China Mining Magazine

基　　金：国家"十一五"科技支撑计划课题"复杂低品位钨钼铋萤石多金属矿选矿工艺研究"资助(编号:2006BAB02805-02-01B)

摘　　要：对萤石、方解石和白钨矿进行了单矿物和实际矿石浮选试验，并通过红外光谱和Zeta电位研究了矿物与捕收剂TAB-3和调整剂水玻璃的作用机理。结果表明：用Na2CO3调介质pH为8～11时，有利于白钨矿与方解石的浮选分离；用NaOH调介质pH≥11时，有利于白钨矿与萤石的浮选分离。捕收剂TAB-3在白钨矿、萤石和方解石表面均发生化学吸附，但加入水玻璃后，捕收剂TAB-3在萤石和方解石表面的吸附减弱。因此，添加水玻璃有利于白钨矿与萤石的浮选分离，更有利于白钨矿与方解石的浮选分离。A flotation test on mono minerals and practical ore of fluorite, calcite and scheelite was conducted. The mechanism of the minerals and TAB-3 collector, sodium silicate regulator was studied by infrared spectrum and Zeta potential. The results showed that it was conducive to a flotation separation of scheelite and calcite when the medium pH was adjusted as 8-11 by use of Na2CO3. It was conducive to a flotation separation of scheelite and fluorite when the medium was phil1 with NaOH. The role between collector TAB-3 and scheelite, fluorite and calcite is chemical adsorption. The collector adsorbed on the surface of fluorite and calcite reduced after adding sodium silicate. Therefore, it is advantageous to the flotation separation of scheelite and fluorite if adding sodium silicate duing their flotation separation, and more advantageous to the flotation separation of scheelite and calcite.

关 键 词：白钨矿 萤石 方解石 红外光谱 ZETA电位 TAB-3 

分 类 号：TD91[矿业工程—选矿] TD952