Experimental Research on Reprocessing Fluorite from High Mud Tailings
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摘要:
为提高某铜锡萤石矿资源利用率，对其浮铜—除硫—磁铁—选锡尾砂中的萤石资源进行再选。实验采用碳酸钠为pH值调整剂、水玻璃与酸化水玻璃为抑制剂、BK410A为捕收剂，经1粗5精2扫浮选闭路实验流程，最终得到萤石精矿中 CaF2品位90.51%、回收率66.13%。
Abstract:In order to improve the utilization rate of a copper-tin mine, The fluorite resources in floating copper-sulfur-removal-magnet-tin tailings were reselected.Sodium carbonate was used as pH agent, water glass and acidic water glass as inhibitors, BK410A as collector.a roughing test, two scavenging, five cleaning of flotation test process. Finally, the fluorite concentrate was obtained and the CaF2 grade and recovery was 90.51% and 66.13%.
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表 1 矿样多元素分析结果 /%
Table 1. Multi-element analysis results of ore samples
CaF2 CaCO3 SiO2 Fe S Cu Sn WO3 Pb Zn 20.68 7.65 41.02 1.56 1.1 0.05 0.21 0.11 0.1 0.26 
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表 2 矿样筛析实验结果
Table 2. Screen analysis test results of ore samples
粒级/μm 产率/% CaF2品位/% CaF2分布率/% +74 6.61 14.71 4.70 -74+38 19.04 19.11 17.59 -38+10 44.34 21.27 45.61 -10 30.01 22.12 32.10 合计 100 20.68 100
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表 3 闭路实验结果
Table 3. Closed-circuit test results
产品名称 CaF2产率/% CaF2品位/% CaF2回收率/% 铜锡浮选尾矿 100.00 20.68 100.00 萤石精矿 15.11 90.51 66.13 萤石尾矿 84.89 8.26 33.87
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