The Application of New Reagents System in a Quartz Vein Type Fluorite Ore Flotation
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摘要:
河南某石英脉型萤石矿SiO2含量为46.47%,CaCO3含量为2.09%,采用常规浮选药剂较难获得高品质精矿。采用新型耐低温捕收剂FX6A和组合抑制剂ZY401-1组成的药剂体系对该矿进行了浮选试验。试验结果表明:原矿经"磨矿—一次粗选—一次扫选—六次精选—中矿集中处理"的选矿工艺流程可获得产率为41.99%、CaF2含量98.91%、回收率94.82%、有害组分SiO2和CaCO3含量分别为0.23%和0.80%的精矿产品,选别指标优良。浮选试验表明:该药剂体系的捕收剂FX6A具有耐低温、高选择性等优点;组合抑制剂ZY401-1具有选择性抑制能力强等优点。
Abstract:The content of SiO2 and CaCO3 were 46.47% and 2.09%, respectively, of the quartz vein type fluorite ore in Henan province, so it was difficult to obtain high quality concentrate by using conventional flotation reagents. The flotation experiment was carried out by using the new low temperature resistant collector FX6A and the combined inhibitor ZY401-1 in this research. The experiment results showed that: the fluorite concentrate could be obtained through the beneficiation process of "grinding- one roughing- one scavenging- six selecting - middling centralized treatment", and the concentrate with yield 41.99%, CaF2 content 98.91%, recovery rate 94.82%, the harmful components SiO2 and CaCO3 content with 0.23% and 0.80%, respectively, was obtained, and the processing indicators were excellent. The flotation experiment showed that the collector FX6A had the advantages of low temperature resistance and high selectivity; the combination inhibitor ZY401-1 had the advantages of strong selective inhibition.
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Key words:
- fluorite /
- new reagents system /
- combined inhibitor /
- flotation
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表 1 原矿多元素分析结果 /%
Table 1. Multi-element analysis result of the raw ore
成分 CaF2 SiO2 CaCO3 K2O Na2O Al2O3 MgO TFe P S 含量 43.20 46.47 2.09 0.73 0.45 4.03 0.59 1.13 0.04 0.21 表 2 矿石中主要矿物的相对含量 /%
Table 2. The relative content of the main minerals in the ore
矿物 萤石 石英 方解石 (绢)白云母 长石 褐铁矿 含量 43.00 40.50 2.00 9.40 2.00 1.60 表 3 磨矿产品粒度筛析试验结果
Table 3. The sieving experiment result of grinding product
粒级/mm 产率/% CaF2含量/% CaCO3含量/% CaF2分布率/% CaCO3分布率/% +0.15 21.62 33.12 1.98 16.61 20.14 -0.15+0.074 33.72 47.17 2.20 36.90 34.90 -0.074+0.045 12.24 50.87 1.53 14.44 8.81 -0.045+0.030 10.47 49.44 2.77 12.01 13.64 -0.030 21.95 39.35 2.18 20.04 22.51 原矿 100.00 43.11 2.13 100.00 100.00 表 4 闭路试验结果 /%
Table 4. The result of closed circuit experiment
产品名称 产率 CaF2含量 CaF2回收率 精矿 41.99 98.91 94.82 尾矿 58.01 3.91 5.18 原矿 100.00 43.80 100.00 表 5 精矿化学多元素分析结果 /%
Table 5. Multi-element analysis result of closed circuit experiment concentrate
成分 CaF2 SiO2 CaCO3 P S 含量 98.91 0.23 0.80 0.011 0.040 -
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