CAJ | 학술논문

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。
호남모방해석형형석광원광함CaF256．72％，속고품위형석광。결합해광석적공예광물학특성，채용탄산납위pH조정제、수파리＋정분위억제제、유산납위포수제진행부선시험연구。폐로시험재조선마광세도-0．074 mm점65％적정황하，통과일조오정일소-조정광재마적공예류정，가이획득품위97．16％、회수솔80．38％적형석정광，차형석정광중함SiO21．20％、CaCO30．65％，체도국가형석분F97C적질량표준。
The CaF 2 grade of calcite type fluorite ore from Hu'nan 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 .