GF组合药剂浮选柿竹园多金属矿萤石的研究

Study on the flotation of fluorite in Shizhuyuan Polymetallic Mine with GF mixed reagent

针对柿竹园矿矿石性质复杂，萤石品位低，嵌布粒度细，共生关系复杂，研制出能有效分散泥化絮团和强烈抑制易浮微细粒脉石的组合药剂ＧＦ，采用粗精矿再磨、中矿集中再选及强磁脱硅工艺，从浮钨尾矿回收萤石，获萤石精矿品位９８．４７％，回收率７１．１９％．

In the light of the fact that in Shizhuyuan Mine, the complicated-in-property ore contains a low grade of fluorite which has fine dissemination sizes and complicated associa-tions with other minerals, a mixed reagent, GF, which can effectively disperse the sliming flocks and strongly depress flotable fine gangue, was developed. A process together with GF was adopted in which the rough concentrate was reground, then the middlings were collected before reflotation, and silicon was eliminated by powerful magnetic concentration. Fluorite was recovered from tungsten flotation tailings by this process, with the grade of fluorite con-centrate being 98. 47% and the recovery 71. 19%.