六偏磷酸钠对蛇纹石的分散机理研究  

Investigation of Action Mechanism between Sodium Hexametaphosphate and Serpentine

作　　者：夏启斌[1] 李忠[1] 邱显扬[2] 戴子林[2] 

机构地区：[1]华南理工大学化工学院,广东广州510641 [2]广州有色金属研究院,广东广州510651

出　　处：《矿冶工程》2002年第2期51-54,共4页Mining and Metallurgical Engineering

基　　金："九五"国家重点科技攻关项目

摘　　要：通过红外光谱、分散度、ζ电位及吸附量测定 ,研究了六偏磷酸钠对蛇纹石表面性质的影响 ,并利用DLVO理论就六偏磷酸钠对蛇纹石的分散行为进行解释。研究结果表明 :六偏磷酸钠在蛇纹石表面的吸附量较小 ,但六偏磷酸钠作为高分子化合物 ,仍足以增大蛇纹石表面电位的绝对值 ,提高了粒间静电排斥作用能 。The influence of sodium-hexametaphosphate on the surface property of serpentine is investigated by determination of infrared spectrum, dispersion degree,ζ potential and adsorptive capacity. The dispersive action of sodium hexametaphosphate on serpentive is explained using the DLVO theory. The results indicate that the adsorptive capacity of sodium hexametaphosphate on the surface of serpentine is small,but it is enough to raise the absolute value of serpentine's surface potential and the electrostatic repulsive energy, because sodium hexametaphosphate is micromolecular compound. This is the main action form in which sodium hexametaphosphate disperses serpentine.

关 键 词：蛇纹石 六偏磷酸钠 分散机理 抑制剂 

分 类 号：TD972.6[矿业工程—选矿] TD923.14