CAJ | 학술논문

某低品位萤石矿含CaF2为25．20％，在磨矿细度－0．075 mm含量70％的条件下，采用碳酸钠为pH调整剂、常规水玻璃和酸化水玻璃为抑制剂、油酸为捕收剂，经过一次粗选—粗精矿一次精选脱泥—五次精选，可获得产率为15．93％、CaF2品位98．27％、回收率为62．37％的高品质酸级萤石精矿产品1；中矿集中处理，经过三次精选，可以获得产率为6．20％、CaF2品位82．73％、回收率为20．44％的冶金级萤石精矿产品2，萤石总回收率达到82．81％。精选添加酸化水玻璃，有助于提升萤石精矿的品级。
모저품위형석광함CaF2위25．20％，재마광세도－0．075 mm함량70％적조건하，채용탄산납위pH조정제、상규수파리화산화수파리위억제제、유산위포수제，경과일차조선—조정광일차정선탈니—오차정선，가획득산솔위15．93％、CaF2품위98．27％、회수솔위62．37％적고품질산급형석정광산품1；중광집중처리，경과삼차정선，가이획득산솔위6．20％、CaF2품위82．73％、회수솔위20．44％적야금급형석정광산품2，형석총회수솔체도82．81％。정선첨가산화수파리，유조우제승형석정광적품급。
A low grade fluorite ore of which the CaF 2 grade was 25.20%, flotation tests were con-ducted under the condition of grinding fineness -0 .075 mm 70%, using sodium carbonate as pH adjusting agent , sodium silicate and acidified sodium silicate as depressant and oleic acid as collec-tor .After a roughing and a cleaning flotation , the rough concentrate was deslimed and moved to an-other five cleaning flotation .A high quality concentrate assaying 98.27%CaF2 was obtained with a yield of 15.93%and recovery of 62.37%.The middling products of flowsheet were handled together by three cleaning flotation and another concentrate product was obtained with assaying 82 .81%CaF2 ,the quality of which reached to metallurgical level .The yield was 6.20% and recovery rate was 20 .44%.This fluorite concentrate was upgraded by using acidified sodium silicate .