某铜铁矿选矿实验

任琳珠, 王李鹏, 刘宝山. 某铜铁矿选矿实验[J]. 矿产综合利用, 2025, 46(2): 141-147. doi: 10.3969/j.issn.1000-6532.2025.02.019
引用本文: 任琳珠, 王李鹏, 刘宝山. 某铜铁矿选矿实验[J]. 矿产综合利用, 2025, 46(2): 141-147. doi: 10.3969/j.issn.1000-6532.2025.02.019
REN Linzhu, WANG Lipeng, LIU Baoshan. Test on Mineral Processing Technology for the Copper-iron Ore[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(2): 141-147. doi: 10.3969/j.issn.1000-6532.2025.02.019
Citation: REN Linzhu, WANG Lipeng, LIU Baoshan. Test on Mineral Processing Technology for the Copper-iron Ore[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(2): 141-147. doi: 10.3969/j.issn.1000-6532.2025.02.019

某铜铁矿选矿实验

详细信息
    作者简介: 任琳珠(1988-),女,高级工程师,硕士研究生,主要从事矿物加工工程研究
  • 中图分类号: TD952

Test on Mineral Processing Technology for the Copper-iron Ore

  • 针对某铜铁矿矿石性质特点,采用先浮-后磁工艺流程,配合使用选择性好的捕收剂酯-112,实现了矿石的综合回收。采用“先浮-后磁”工艺,即将原矿磨至-74 μm 70% ,铜回路采用一次粗选、三次精选产出铜精矿;铜扫选尾矿经过一次磁选产出铁精矿。闭路实验获得铜精矿中铜的品位为20.72%,铜回收率为80.76%;铜精矿中金品位43.91 g/t,回收率86.29%,铁精矿品位为66.38%,铁回收率为94.20%,铁精矿中有害元素硫含量仅为0.16%。

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  • 图 1  药剂种类筛选实验流程

    Figure 1. 

    图 2  磨矿细度实验流程

    Figure 2. 

    图 3  酯-112用量实验流程

    Figure 3. 

    图 4  酯-112用量实验结果

    Figure 4. 

    图 5  开路实验流程

    Figure 5. 

    图 6  闭路实验流程

    Figure 6. 

    表 1  矿石化学多元素分析结果/%

    Table 1.  Chemical analysis results of the ore

    Cu Pb Zn S Fe SiO2 Au* Al2O3 CaO MgO As Co* P*
    0.30 微量 微量 0.72 59.30 8.89 0.60 1.85 0.86 5.54 0.06 85.00 58.00
    *单位是为g/t。
    下载: 导出CSV

    表 2  矿石铜物相分析结果

    Table 2.  Phase analysis results of copper

    名 称 原生硫化铜 次生硫化铜 自由氧化铜 结合氧化铜 总 铜
    含 量/% 0.186 0.080 0.009 0.025 0.300
    占有率/% 62.00 26.67 3.00 8.33 100.00
    下载: 导出CSV

    表 3  矿石铁物相分析结果

    Table 3.  Phase analysis results of iron

    名 称磁铁矿赤铁矿及褐铁矿菱铁矿黄铁矿其他总铁
    含 量/%56.060.620.350.461.8159.30
    占有率/%94.531.050.590.783.05100.00
    下载: 导出CSV

    表 4  药剂种类筛选实验结果

    Table 4.  Screening test results of flotation reagent types

    药剂及用量/(g/t) 产品
    名称
    产率
    /%
    品 位/% 回收率/%
    Cu S Fe Au* Cu S Fe Au
    石灰:1000
    丁基黄药:60
    松醇油:30
    铜粗精矿 2.44 9.25 22.13 27.65 18.80 74.31 75.46 1.13 78.34
    尾矿 97.56 0.08 0.18 60.53 0.13 25.69 24.54 98.87 21.66
    原矿 100.00 0.30 0.72 59.73 0.59 100.00 100.00 100.00 100.00
    丁铵黑药:40
    丁基黄药:50
    铜粗精矿 2.69 8.95 19.94 28.50 18.90 77.95 74.37 1.29 82.61
    尾矿 97.31 0.07 0.19 60.47 0.11 22.05 25.63 98.71 17.39
    原矿 100.00 0.31 0.72 59.61 0.62 100.00 100.00 100.00 100.00
    碳酸钠:1000
    酯-112:40
    丁基黄药:50
    铜粗精矿 2.52 9.87 20.17 27.58 20.20 80.96 72.28 1.16 85.30
    尾矿 97.48 0.06 0.20 60.65 0.09 19.04 27.72 98.84 14.70
    原矿 100.00 0.31 0.70 59.82 0.60 100.00 100.00 100.00 100.00
    石灰:1000
    酯-112:40
    丁基黄药:50
    铜粗精矿 2.53 9.75 22.56 27.82 21.30 83.50 78.54 1.18 88.76
    尾矿 97.47 0.05 0.16 60.60 0.07 16.50 21.46 98.82 11.24
    原矿 100.00 0.30 0.73 59.77 0.61 100.00 100.00 100.00 100.00
    石灰:1000
    A-2:40
    丁基黄药:50
    铜粗精矿 2.52 9.56 21.42 27.00 20.80 80.46 75.47 1.14 87.05
    尾矿 97.48 0.06 0.18 60.45 0.08 19.54 24.53 98.86 12.95
    原矿 100.00 0.30 0.72 59.61 0.60 100.00 100.00 100.00 100.00
    *单位为g/t。
    下载: 导出CSV

    表 5  磨矿细度对浮选指标影响

    Table 5.  Effect of grinding fineness on barite flotation

    磨矿细度-0.074 mm/% 产品
    名称
    产率
    /%
    品 位/% 回收率/%
    Cu S Fe Au* Cu S Fe Au
    60 铜粗精矿 2.55 9.51 22.18 27.05 19.60 80.11 75.61 1.16 83.91
    铁精矿 84.68 0.05 0.14 65.90 0.08 13.99 15.85 93.87 11.37
    尾矿 12.77 0.14 0.50 23.12 0.22 5.90 8.54 4.97 4.72
    原矿 100.00 0.30 0.75 59.45 0.60 100.00 100.00 100.00 100.00
    65 铜粗精矿 2.55 9.55 21.59 26.90 20.60 82.25 75.76 1.15 86.18
    铁精矿 85.11 0.04 0.12 66.21 0.07 11.50 14.05 94.18 9.77
    尾矿 12.34 0.15 0.60 22.65 0.20 6.25 10.19 4.67 4.05
    原矿 100.00 0.30 0.73 59.83 0.61 100.00 100.00 100.00 100.00
    70 铜粗精矿 2.58 9.71 21.36 27.15 21.20 82.93 76.75 1.17 88.14
    铁精矿 84.81 0.04 0.13 66.45 0.06 11.23 15.35 94.10 8.20
    尾矿 12.61 0.14 0.45 22.48 0.18 5.84 7.90 4.73 3.66
    原矿 100.00 0.30 0.72 59.89 0.62 100.00 100.00 100.00 100.00
    75 铜粗精矿 2.51 9.85 22.05 26.38 21.50 82.59 75.79 1.10 86.24
    铁精矿 85.57 0.04 0.13 66.48 0.07 11.44 15.23 94.30 9.57
    尾矿 11.92 0.15 0.55 23.28 0.22 5.97 8.98 4.60 4.19
    原矿 100.00 0.30 0.73 60.32 0.63 100.00 100.00 100.00 100.00
    80 铜粗精矿 2.49 10.01 22.37 26.74 21.60 82.42 77.04 1.11 86.35
    铁精矿 84.62 0.04 0.12 66.57 0.07 11.19 14.04 93.99 9.51
    尾矿 12.89 0.15 0.50 22.78 0.20 6.39 8.92 4.90 4.14
    原矿 100.00 0.30 0.72 59.93 0.62 100.00 100.00 100.00 100.00
    *单位为g/t。
    下载: 导出CSV

    表 6  石灰用量对浮选指标影响

    Table 6.  Effect of lime dosage on barite flotation

    石灰用量/(g/t)产品
    名称
    产率
    /%
    品 位/%回收率/%
    CuSAu*CuSAu
    0
    (pH=6.5)
    铜粗精矿2.618.8019.9920.9077.1169.0687.50
    尾矿97.390.070.240.0822.8930.9412.50
    原矿100.000.300.760.62100.00100.00100.00
    500
    (pH=7)
    铜粗精矿2.669.1119.7720.7080.5872.0187.61
    尾矿97.340.060.210.0819.4227.9912.39
    原矿100.000.300.730.63100.00100.00100.00
    1 000
    (CaO:67.20 g/m3
    铜粗精矿2.589.7121.3621.2083.7276.8987.53
    尾矿97.420.050.170.0816.2823.1112.47
    原矿100.000.300.720.62100.00100.00100.00
    1 500
    (CaO:112.00 g/m3
    铜粗精矿2.539.8021.5422.1083.5777.7590.53
    尾矿97.470.050.160.0616.4322.259.47
    原矿100.000.300.700.62100.00100.00100.00
    2 000
    (CaO:173.60 g/m3
    铜粗精矿2.459.8522.4322.3083.1977.8888.89
    尾矿97.550.050.160.0716.8122.1211.11
    原矿100.000.290.710.61100.00100.00100.00
    *单位为g/t。
    下载: 导出CSV

    表 7  磁场强度实验结果

    Table 7.  Results of magnetic field intensity

    磁场强度
    /T
    产品名称作业产率
    /%
    品 位/%作业回收率/%
    FeSFeS
    0.06铁精矿84.4966.810.1092.7654.22
    尾 矿15.5128.410.467.2445.78
    给 矿100.0060.850.16100.00100.00
    0.08铁精矿87.0766.190.1094.7153.73
    尾 矿12.9324.900.585.2946.27
    给 矿100.0060.850.16100.00100.00
    0.10铁精矿87.5766.130.1095.2455.28
    尾 矿12.4323.280.574.7644.72
    给 矿100.0060.800.16100.00100.00
    0.12铁精矿88.0765.690.1295.6164.86
    尾 矿11.9322.280.484.3935.14
    给 矿100.0060.510.16100.00100.00
    下载: 导出CSV

    表 8  开路实验结果

    Table 8.  Results of the open-circuit tests

    产品
    名称
    产 率
    /%
    品 位/% 回 收 率/%
    Cu S Fe Cu S Fe
    铜精矿 0.92 22.80 21.41 26.26 66.86 31.37 0.41
    中矿1 0.21 13.05 22.48 27.56 8.73 7.52 0.10
    中矿2 0.42 3.59 18.34 28.71 4.81 12.27 0.20
    中矿3 1.00 0.85 11.23 28.87 2.71 17.88 0.48
    中矿4 0.25 0.82 10.25 27.36 0.65 4.08 0.11
    铁精矿 83.81 0.04 0.12 66.93 10.69 16.01 93.98
    尾 矿 13.39 0.13 0.51 21.05 5.55 10.87 4.72
    原 矿 100.00 0.31 0.63 59.69 100.00 100.00 100.00
    下载: 导出CSV

    表 9  闭路实验结果

    Table 9.  Results of the closed-circuit tests

    产品
    名称
    产率
    /%
    品 位/%回收率/%
    CuSFeAu*CuSFeAu
    铜精矿1.1820.7234.8126.1943.9180.7659.800.5286.29
    铁精矿84.390.040.1666.380.0611.1419.6494.208.43
    尾矿14.430.170.9821.770.228.1020.565.285.28
    原矿100.000.300.7059.470.60100.00100.00100.00100.00
    *单位为g/t。
    下载: 导出CSV
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出版历程
收稿日期:  2022-04-12
刊出日期:  2025-04-25

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