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.
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
关键词
萤石
浮选
再磨
方解石
fluorite
flotation
regrinding
calcite
