平江某长石矿重磁浮流程试验研究

Experimental research on gravity-magnetic-flotation process of feldspar ore from Pingjiang

摘要: 本文研究了不同重选、磁选、浮选组合流程对某长石矿提纯精矿白度和含铁量的影响。结果表明：通过磁选-脱泥-浮选流程能得到产率69.52%，Fe₂O₃含量0.008%，白度70.32%的长石精矿；通过脱泥-螺溜重选-中矿再溜-磁选流程得到总产率74.51%，Fe₂O₃含量0.025%，白度高于65%的长石精矿。与磁选-浮选联合工艺相比，重选-磁选联合工艺可获得产率更高，且各项符合日用陶瓷用长石要求的长石精矿。

Abstract: Gravity，magnetic and flotation experiment have been carried out to research the effect of different union process on the whiteness and iron content of feldspar concentrate.The results showed that：through the magnetic-gravity separation technology，the feldspar concentrate with productivity of 69.52%，content of 0.008%，whiteness of 70.32% was obtained；through the gravity-magnetic separation technology，the feldspar concentrate with productivity of 74.51%，Fe₂O₃ content of 0.025%，whiteness more than 65% was obtained.Comparing with magnetic-gravity separation technology，the later could get the concentrate with higher yield and meet the standard of feldspar for ceramic.