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微细粒矿物絮凝浮选研究进展OACSTPCD

Advancements in Studying the Flocculation Flotation of Fine Minerals

中文摘要英文摘要

我国矿产资源的特点为贫、细、杂,所以微细粒矿物的高效回收利用尤为重要.浮选作为主要分离技术,从流体动力学和表面化学两个变量分析了微细粒矿物浮选过程中的难点.微细粒矿物具有质量小、比表面积大、表面能高等特性,导致疏水性矿粒在浮选中沿着流体流线运动,与气泡的碰撞概率和附着概率低.絮凝浮选通过增加矿物颗粒的表观粒径,降低微细粒矿物因自身基本特性带来的负面影响,是微细粒矿物经济回收的重要方向.详细阐述了絮凝浮选理论进展和影响絮凝过程的主要因素,以及剪切絮凝和选择性絮凝浮选的技术进展;全面描述了无机絮凝剂、有机絮凝剂和微生物絮凝剂等的絮凝性能及在絮凝浮选中的应用,为深入了解絮凝浮选这一复杂的过程提供了借鉴.

The characteristics of mineral resources in our country are scarcity,fineness,and complexity,making the efficient recovery of fine particles particularly crucial.Flotation,as the main separation technology,analyzes the challenges in the flotation process of fine particles from the perspectives of fluid dynamics and surface chemistry.Fine particles,characterized by small mass,large specific surface area,and high surface energy,result in hydrophobic mineral grains moving along fluid streamlines during flotation,with low collision and attachment probabilities with air bubbles.Flocculation flotation,by increasing the apparent particle size of mineral particles,reduces the negative effects brought by the inherent characteristics of fine particles,serving as a significant direction for economically recovering fine particles.The paragraph comprehensively describes the advances in flocculation flotation theory,key factors influencing the process,and developments in shear flocculation and selective flocculation flotation.Furthermore,a comprehensive investigation into the flocculation performance of inorganic,organic,and microbial flocculants,along with their applications in flocculation flotation.It serves as a reference for gaining a detailed understanding of the intricate process of flocculation flotation.

吴宇;张英;李小康;管侦皓;何青瑞

昆明理工大学 国土资源工程学院,云南 昆明 650093昆明理工大学 国土资源工程学院,云南 昆明 650093||昆明理工大学 省部共建复杂有色金属资源清洁利用国家重点实验室,云南 昆明 650093

矿山工程

微细粒矿物絮凝浮选絮凝剂吸附机理

fine particleflocculation flotationflocculantadsorption mechanism

《矿产保护与利用》 2024 (003)

16-26 / 11

国家自然科学基金地区项目(52164022)

10.13779/j.cnki.issn1001-0076.2024.03.002

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