荷电微泡界面性质调控及其在微细粒白钨矿浮选中的作用研究

Because of the small weight of fine particles, it is difficult for the fine useful mineral particles to overcome the energy barrier between mineral particles and bubbles and adhere to the bubbles in the collision process, which is the main case limits the efficient utilization of fine tungsten ores. This project focuses the fine scheelite, research the formation modes of charged microbubble and and its interfacial properties, the attachment process between fine scheelite with charged microbubble and its control programme of, the strengthen effect of charged microbubble to scheelite flotation. All of above is to determine the regulatory mechanism of interface properties of charged microbubble, build up the theoretical framework of strengthen fine scheelite flotation based on the regulation of the adhesion process between fine mineral particles with charged microbubbles. At the same time, novel flotation separation technologies are developed to provide the reference for the efficient use of fine particle mineral resources.

微细粒有用矿物质量小，在碰撞过程中难以克服矿粒与气泡间的能垒而无法粘附到气泡上，是制约微细粒级白钨矿等矿产资源高效利用的主要技术瓶颈。本项目以微细粒级白钨矿的高效浮选为目标，系统研究荷电微泡的产生方式及界面性质、荷电微泡与微细粒级白钨矿的碰撞粘附过程及其调控方案、荷电微泡对微细粒级白钨矿浮选的强化作用。在以上研究基础上，确定荷电微泡界面性质的调控机制，形成基于调控荷电微泡与微细粒级白钨矿选择性碰撞粘附过程强化微细粒级白钨矿浮选的新理论，开发微细粒白钨矿浮选新技术，为我国微细粒级矿产资源的高效利用提供借鉴。

微细粒有用矿物质量小，在碰撞过程中难以克服矿粒与气泡间的能垒而无法粘附到气泡上，是制约微细粒级白钨矿等矿产资源高效利用的主要技术瓶颈。本项目以微细粒级白钨矿与脉石矿物的高效分离为目标，系统研究了不同种类及结构的高分子抑制剂对白钨矿及方解石的抑制作用及机理，粒度对矿物浮选行为及高分子抑制剂抑制行为的影响，有无抑制剂作用下铅离子和超声处理对微细粒白钨矿及脉石矿物浮选分离的影响，荷电微泡的产生机制及微泡性质的影响因素，荷电微泡在白钨矿及方解石浮选分离中的作用。在以上研究基础上，确定了荷电微泡的产生机制及微泡界面性质的影响因素，形成了基于调控荷电微泡性质及高分子抑制剂共同作用强化微细粒级白钨矿浮选的新理论，开发了微细粒白钨矿浮选新技术，为我国微细粒级矿产资源的高效利用提供了借鉴。