摘要
矿物表面粗糙度的特征影响着液-固和气-固相互作用,从而影响矿物颗粒的疏水性以及气泡矿化过程。尽管已经有很多研究对矿物表面粗糙度与浮选过程的关系进行了探索,但仍然存在一些待解决的问题,如矿物表面粗糙度的准确表征方法以及粗糙度对不同疏水性矿物浮选过程的影响。针对上述问题,从矿物表面粗糙度的定义、测量方法和制备方法出发,深入分析了粗糙度对表面润湿性、浮选药剂吸附、气泡-矿物表面接触面积和粘附力、诱导时间以及浮选效果的影响,旨在探讨矿物表面粗糙度对浮选过程的影响,揭示不同粗糙度对液滴-矿物相互作用和气泡-矿物相互作用的影响机制,为提高矿物浮选效率提供理论支持。
Mineral surface roughness plays a critical role in flotation processes,significantly influencing interactions between minerals,collectors,and bubbles.Despite considerable research on this topic,key challenges remain unresolved,including the accurate characterization of surface roughness and its impact on flotation processes for minerals with varying hydrophobicity.Surface roughness affects liquid-solid and gas-solid interactions,thereby modulating particle hydrophobicity and bubble mineralization dynamics.We comprehensively examine the definition,measurement methods,and preparation techniques for mineral surface roughness,alongside its effects on surface wetting properties,reagent adsorption,bubble-mineral contact area,adhesion forces,induction time,and overall flotation performance.By analyzing these factors,we aim to elucidate the mechanisms through which surface roughness influences liquid-solid and bubble-mineral interactions,providing a theoretical foundation for optimizing flotation efficiency.Our findings highlight the importance of surface roughness as a critical parameter in flotation processes and offer insights into strategies for enhancing mineral recovery and separation efficiency.
作者
孙玉金
陈恒飞
侯思恒
熊鹏
董宪姝
叶贵川
王梦彬
李书桓
SUN Yujin;CHEN Hengfei;HOU Siheng;XIONG Peng;DONG Xianshu;YE Guichuan;WANG Mengbin;LI Shuhuan(State Key Laboratory of Mineral Processing Science and Technology,Beijing 102628,China;School of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Jinchuan Aoyinuo Mining Co.,Ltd.,Aba 624199,China)
出处
《煤炭工程》
北大核心
2025年第3期180-188,共9页
Coal Engineering
基金
国家自然科学基金项目(52204275)
矿物加工科学与技术国家重点实验室开放基金项目(BGRIMM-KJSKL-2023-07,BGRIMM-KJSKL-2023-08)
山西省回国留学人员科研资助项目(2022-059)。
关键词
表面粗糙度
浮选过程
润湿性
气泡-矿物
相互作用
surface roughness
flotation process
wetting properties
bubble-mineral
interaction
