论文部分内容阅读
本文提供了关于菱锰矿在高梯度磁选中表面力影响的试验研究结果。菱锰矿细磨到-10μ占90％以上,在PH=6～9之间,磁场强度从2000奥斯特到6000奥斯特变化的高梯度磁选装置加以分离,实验数据表明:菱锰矿精矿的最大回收率和最高品位都在PH值相应于其零电点时获得。回收率和品位的这些明显变化的原因,被认为是在零电点附近时,静电斥力消失,在外磁场作用下颗粒发生选择性磁絮凝继而在介质载体上有较高的捕获速率所致。
This article provides experimental results on the effect of rhodochrosite on the surface forces in high gradient magnetic separations. Rhodochrosite fine grinding to -10μ accounting for more than 90%, in the PH = 6 ~ 9, the magnetic field intensity from 2000 Oersted to 6000 Oersted changes in high gradient magnetic separation device to be separated, the experimental data show: rhodochrosite The maximum recovery and the highest grade of the ore are obtained at a pH corresponding to its zero point. The reason for these significant changes in recovery and grade is believed to be that the electrostatic repulsion disappears near the zero point and the particles undergo selective magnetic flocculation under the action of an external magnetic field which in turn results in a higher capture rate on the media support.