浮选环境中高分子调整剂的应激反应规律与调控机制研究

From entering the flotation process to become the final product, the flotation environment of ore is always changing. The changing flotation environment will influence the effects of polymer regulators adsorbing on mineral surface, thus affecting the flotation behavior of minerals. This project focuses on stimulus response rules and adjusting mechanism of polymer regulators. The effect of the flotation environment on the adsorption/ desorption behavior of polymer regulator, the rules and occurrence mechanism of polymer regulators stimulus response , the influence factors of stimulus response of polymer regulators that adsorb on mineral surface and their relation with mineral flotation, and the controllable regulation of mineral surface adsorption regulators’ performance will be studied. All of above is to determine the occurrence mechanism of stimulus response of regulators and to build up the flotation theory based on adjusting flotation environment to change the performance of regulators adsorbed on mineral surface. The research results have great theoretical and practical value for the efficient utilization of flotation regulator and improving the separation accuracy of polymetallic sulfide ore.

从进入浮选流程到成为最终产品，矿物所经历的浮选环境是一直变化的，这种变化的浮选环境将对吸附在矿物表面的具有应激性的高分子调整剂的作用效果产生影响，从而影响矿物的浮选行为。本项目以高分子调整剂的应激反应规律与调控机制为重点，主要研究浮选环境对高分子调整剂吸附/脱附行为的影响、溶液中高分子调整剂的应激反应规律及发生机制、矿物表面已吸附高分子调整剂应激反应的影响因素及其与矿物浮选行为的关系、浮选过程中矿物表面已吸附高分子调整剂作用效果的可控调节。在以上研究基础上，确定高分子调整剂应激反应的发生机制，形成基于调控浮选环境改变矿物表面已吸附调整剂作用效果的浮选理论。本项目的研究结果对于实现高分子调整剂的高效利用，提高复杂难处理硫化矿石的分离精度，有重要的理论价值和实际指导意义。

高分子调整剂在硫化铜镍矿与含镁硅酸盐脉石的浮选分离中发挥着重要作用。本项目主要研究了高分子抑制剂在黄铜矿及滑石表面的吸附行为及机理、高分子抑制剂在黄铜矿与滑石浮选分离中的作用、高分子调整剂的应激反应及对矿物浮选行为的影响、高分子调整剂的应激反应及对矿物沉降行为的影响、高分子调整剂在某硫化铜镍矿浮选中的作用。在以上研究基础上，确定了高分子调整剂应激反应的发生机制，实现了硫化铜镍矿物与镁硅酸盐脉石矿物的浮选分离。本项目的研究结果对于实现高分子调整剂的高效利用，提高复杂难处理硫化矿石的分离精度，有重要的理论价值和实际指导意义。