表面粗糙度对浮选气泡-颗粒相互作用的影响机理研究进展  

Fundamental role of surface roughness in bubble-particle interaction in flotation:A review

作　　者：赵亮 ZHOU Joe 张志军 刘清侠 ZHAO Liang;ZHOU Joe;ZHANG Zhi-jun;LIU Qing-xia(China Nonferrous MetalsGeology and Mining Co.,Ltd.,Guilin 541004,China;School of Chemical and Environmental Engineering,China University of Mining and Technology,Beijing 100083,China;Department of Chemical and Materials Engineering,University of Alberta,Edmonton,Alberta T6G 1H9,Canada;Disruptive Separation Technology Ltd.,Edmonton,Alberta T6J 6X6,Canada)

机构地区：[1]China Nonferrous Metals(Guilin)Geology and Mining Co.,Ltd.,Guilin 541004,China [2]School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China [3]Department of Chemical and Materials Engineering,University of Alberta,Edmonton,Alberta T6G 1H9,Canada [4]Disruptive Separation Technology Ltd.(DSTL),Edmonton,Alberta T6J 6X6,Canada

出　　处：《Journal of Central South University》2023年第9期3021-3043,共23页中南大学学报（英文版）

基　　金：Project(201906430032)supported by the China Scholarship Council。

摘　　要：表面粗糙度对高效浮选起着至关重要的作用。通过与理想固体表面的对比,本文着重综述了表面粗糙度对气泡在固体表面润湿行为和动态粘附/脱附行为的影响机理。目前关于理想条件下气泡-颗粒间相互作用的动力学研究与实际浮选矿物仍存在一定的差距。此外,结合浮选捕收剂、纳米气泡和润湿状态,详细讨论并总结了表面粗糙度对实际矿物浮选效果的影响。结果表明,在理想条件下建立的相关模型很难或者仅能部分应用于表征实际的矿物浮选过程。未来的研究方向应当注重如何实现通过表面粗糙度调控强化实际矿物颗粒的浮选回收率,例如开发实际矿物颗粒表面粗糙度的量化测定技术,或者将理想情况下气泡-颗粒作用动力学模型与实际矿物浮选过程有机结合起来。Understanding the role of surface roughness in flotation is crucial to obtain the highest technical and economical efficiencies of flotation operations.In this review,the fundamentals of the static wetting and the dynamic attachment/detachment of bubbles on rough surfaces are discussed with special focus on the comparisons with the mechanisms in the case of ideal surfaces.The gaps between current research in dynamics of bubble-particle interaction in ideal cases and the real mineral particles in flotation are identified.In addition,the impacts of surface roughness on real mineral flotation are clearly discussed by combining collector,nanobubbles and wetting state.The fundamental mechanisms in ideal case may not be applicable,or only partially applicable to the real mineral flotation operations.The future research directions on enhancing the role of surface roughness in flotation separation recovery of real mineral particles were proposed,such as developing suitable techniques to quantify surface roughness of real mineral solids,and correlating the dynamics of bubble-particle interactions in ideal case with the real mineral particles.

关 键 词：矿物加工 表面粗糙度 浮选 润湿状态 气泡-颗粒粘附 气泡-颗粒脱附 

分 类 号：TD923[矿业工程—选矿]