细鳞片中碳石墨的浮选提纯研究

Experimental Study on Purification of a Fine-scaled Graphite Ore by Flotation

对品位为 81 %左右、含有半石墨的难选细鳞片石墨提纯进行了浮选法试验研究 ,目的在于提高石墨的品位及回收率。在经过正交试验及磨矿细度和矿浆浓度等调优试验后 ,得到品位为 95 .1 5 %的高碳石墨及品位为 90 %的中碳石墨 ,选矿回收率达到 92 .84%。

Based on the quality analysis of the medium carbon product whose grade is 81%, the emphasis of the study was placed on the orthogonal experiments of roughing flotation reagent and single factors, such as grinding granularity, pulp concentration. The result with improvement in the grade of concentrate to 95.15% and 90% through the routine floatation method was achieved. The flotation recovery rate reaches to 92.84%.