湖南某方解石型萤石选矿试验研究  

Test Research on Beneficiation of Calcite Type Fluorite Ore in Hu'nan

作　　者：胡瑞彪[1] 吉红[1] 陈典助[1] 荆正强[1] 

机构地区：[1]长沙有色冶金设计研究院有限公司,湖南长沙410011

出　　处：《矿产保护与利用》2013年第2期15-18,共4页Conservation and Utilization of Mineral Resources

摘　　要：湖南某方解石型萤石矿原矿含CaF256.72%,属高品位萤石矿。结合该矿石的工艺矿物学特性,采用碳酸钠为pH调整剂、水玻璃+淀粉为抑制剂、油酸钠为捕收剂进行浮选试验研究。闭路试验在粗选磨矿细度-0.074 mm占65%的情况下,通过一粗五精一扫—粗精矿再磨的工艺流程,可以获得品位97.16%、回收率80.38%的萤石精矿,且萤石精矿中含SiO21.20%、CaCO30.65%,达到国家萤石粉F97C的质量标准。The CaF/grade of calcite type fluorite ore from Huhan is reaching up to 56.72%, regard as high - grades fluorite ore. According to the mineralogical characteristic of the ore, the fluorite was studied, Using sodium carbonate as pH adjusting agent, sodium silicate and starch as depressant, so- dium oleate as collector, closed - circuit test were carried out in the condition that the roughing grinding fineness was - 0. 074 mm 65%. The grade and recovery of the fluorite concentrate were 97.16% and 80.38% respectively, and the content of SiO2 and CaCO3 meet the national standards. The results showed that concentrate were obtained by swept one rougher- five cleaners -one scav- enging and coarse concentrate regrinding closed -circuit process.

关 键 词：萤石 浮选 再磨 方解石 

分 类 号：TD971.5[矿业工程—选矿]