河南某含金银硫化铜矿选矿试验研究
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周立波,曹飞,曹进成,吕良
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Experimental Study on Beneficiation of a Gold-Silver Copper Sulfide Ore from Henan Province
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Libo ZHOU,Fei CAO,Jincheng CAO,Liang LV
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表5 矿浆pH值对混合浮选粗选作业分选指标的影响
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Table 5 Effect of pH value of pulp on separation index of mixed flotation roughing operation
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pH值调整剂种类及用量/(g·t-1) | 产品名称 | 产率/% | 品位/% | 回收率/% |
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铜 | 硫 | 铜 | 硫 |
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无调整剂 (pH=7) | 精矿 | 13.46 | 4.14 | 22.90 | 64.78 | 87.04 | 尾矿 | 86.54 | 0.35 | 0.53 | 35.22 | 12.96 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | Na2CO3:1 000 (pH=8) | 精矿 | 14.50 | 4.65 | 23.40 | 78.12 | 94.68 | 尾矿 | 85.50 | 0.22 | 0.22 | 21.88 | 5.32 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | Na2CO3:2 000 (pH=9) | 精矿 | 14.36 | 4.80 | 23.58 | 80.08 | 95.65 | 尾矿 | 85.64 | 0.20 | 0.18 | 19.92 | 4.35 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | Na2CO3:3 000 (pH=10) | 精矿 | 12.75 | 5.32 | 26.39 | 78.70 | 95.07 | 尾矿 | 87.25 | 0.21 | 0.20 | 21.30 | 4.93 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | CaO:1 000 (pH=8) | 精矿 | 18.61 | 3.88 | 18.65 | 83.91 | 98.05 | 尾矿 | 81.39 | 0.17 | 0.085 | 16.09 | 1.95 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | CaO:2 000 (pH=10) | 精矿 | 18.50 | 3.86 | 18.74 | 82.94 | 97.90 | 尾矿 | 81.50 | 0.18 | 0.09 | 17.06 | 2.10 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | CaO:3000 pH=11 | 精矿 | 19.29 | 3.66 | 17.72 | 82.17 | 96.58 | 尾矿 | 80.71 | 0.19 | 0.15 | 17.83 | 3.42 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 | CaO:4 000 (pH=13) | 精矿 | 18.59 | 3.99 | 17.20 | 82.96 | 90.34 | 尾矿 | 81.41 | 0.18 | 0.42 | 17.04 | 9.66 | 原矿 | 100.00 | 0.86 | 3.54 | 100.00 | 100.00 |
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