异凝聚理论及应用研究─—异类颗粒间相互作用及异类矿粒的凝聚  

HETER─GGREGATION THEORY AND ITS APPLICATIONS

作　　者：胡岳华[1] 徐竞[1] 邱冠周[1] 王淀佐[1] 

机构地区：[1]中南工业大学

出　　处：《矿冶工程》1994年第3期23-27,31,共6页Mining and Metallurgical Engineering

基　　金：国家教委博士基金;优秀青年教师基金

摘　　要：本文系统研究了异类颗粒间范德华、静电及界面极性相互作用。这３种相互作用均有可能是吸引或是排斥，取决于体系性质。亲水颗粒表面间水化排斥，疏水颗粒表面间疏水吸引及疏水表面与亲水表面间的水化或疏水作用，对矿粒的凝聚与分散起主导作用，可由界面极性相互作用确定。根据异类颗粒间范德华、静电及界面极性相互作用总势能曲线，确定了赤铁矿／石英及方解石／锐钛矿的凝聚、分散行为。In this paper van der Waal's force,electrostatic force and interfacial polar in-teractions between different mineral particles have been studied. The interactions,repulsiveor attractive, would depend on the system properties. The hydrophobic attraction betweenhydrophobilized particles , the hydration repulsion between hydrophilic particles and the hy-dration or hydrophobic effect between hydrophobic and hydrophilic faces play a leading rolein coagulation and dispersion of different mineral particles,which is determined by the inter-facial polar interactions. The coagulation and dispersion of hematite/quartz and anatase/cal-cite systems are discussed in the light of extented DLVO theory taking into account of inter-facial polar interactions.

关 键 词：颗粒 相互作用 异凝聚 细粒矿物 凝聚 

分 类 号：P574[天文地球—矿物学]