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国外某海滨砂矿综合回收试验研究

梁焘茂 杨招君 钟森林 洪秋阳 吴城材 王丰雨 张超达

梁焘茂, 杨招君, 钟森林, 洪秋阳, 吴城材, 王丰雨, 张超达. 国外某海滨砂矿综合回收试验研究[J]. 钢铁钒钛, 2022, 43(3): 91-97. doi: 10.7513/j.issn.1004-7638.2022.03.015
引用本文: 梁焘茂, 杨招君, 钟森林, 洪秋阳, 吴城材, 王丰雨, 张超达. 国外某海滨砂矿综合回收试验研究[J]. 钢铁钒钛, 2022, 43(3): 91-97. doi: 10.7513/j.issn.1004-7638.2022.03.015
Liang Taomao, Yang Zhaojun, Zhong Senlin, Hong Qiuyang, Wu Chengcai, Wang Fengyu, Zhang Chaoda. Experimental study on comprehensive recovery of a beach placer ore abroad[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 91-97. doi: 10.7513/j.issn.1004-7638.2022.03.015
Citation: Liang Taomao, Yang Zhaojun, Zhong Senlin, Hong Qiuyang, Wu Chengcai, Wang Fengyu, Zhang Chaoda. Experimental study on comprehensive recovery of a beach placer ore abroad[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(3): 91-97. doi: 10.7513/j.issn.1004-7638.2022.03.015

国外某海滨砂矿综合回收试验研究

doi: 10.7513/j.issn.1004-7638.2022.03.015
基金项目: 广东省科学院发展专项资金项目(2022GDASZH-2022010104)。
详细信息
    作者简介:

    梁焘茂(1995—),男,江西吉安人,助理工程师,硕士,主要从事矿物加工工程及资源综合利用方面的研究,E-mail:liangtaomao@126.com

    通讯作者:

    钟森林(1984—),男,江西赣州人,工程师,主要从事选矿工艺、设备开发及资源综合利用方面的研究,E-mail:170446587@qq.com

  • 中图分类号: TD98

Experimental study on comprehensive recovery of a beach placer ore abroad

  • 摘要: 国外某海滨砂矿富含钛铁矿、锆石、独居石等多种有用矿物。钛铁矿矿物经历蚀变,部分锆石表面被铁污染,矿物磁、电性质发生变化,较为难选。采用筛选—螺旋溜槽一粗一扫工艺预富集重矿物,获得产率23.78%,Fe、TiO2、REO、Zr(Hf)O2品位分别为25.76%、43.73%、0.44%、2.83%,回收率分别为93.70%、93.11%、78.32%、93.64%的重砂。针对重砂,采用弱磁选铁—高梯度强磁选一粗一精一扫,分离出部分磁性较强钛精矿,强磁中矿采用摇床—干式磁选—电选流程分离出独居石精矿和另一部分磁性较弱钛精矿,强磁尾矿进行摇床选锆—锆粗精矿进行电选除杂,从而分离出铁精矿、钛精矿、独居石精矿和锆精矿产品。相对重砂,精矿与中矿中TiO2、REO、Zr(Hf)O2综合回收率分别为99.16%、67.71%、89.56%,实现了有用矿物的综合回收。研究结果可为类似海滨砂矿的开发和综合回收提供参考。
  • 图  1  富钛钛铁矿(深色)局部蚀变成白钛石(浅色)

    Figure  1.  Local alteration of pseudorutile (dark) to leucoxene (light)

    图  2  原矿重选预富集试验流程

    Figure  2.  The preconcentration process of heavy minerals from raw ore by gravity separation

    图  3  弱磁尾矿高梯度磁选回收钛、稀土试验流程

    Figure  3.  High gradient magnetic separation process of ilmenite and monazite from tailings of low intensity magnetic separation

    图  4  强磁中矿独居石精选分离试验流程

    Figure  4.  Separation process of monazite from high intensity magnetic middlings

    图  5  强磁尾矿摇床选锆试验流程

    Figure  5.  Table separation process of Zr from high intensity magnetic tailings

    图  6  锆粗精矿电选试验流程

    Figure  6.  High-tension separation process of rough zircon concentrate

    表  1  原矿多元素分析

    Table  1.   Multi-elemental analysis results of raw ore %

    FeTiO2Zr(Hf)O2REOMgOAl2O3SiO2
    6.3910.960.700.130.320.8577.81
    下载: 导出CSV

    表  2  原矿主要矿物组成

    Table  2.   Main mineral compositions and content in raw ore %

    钛铁矿金红石白钛石锆石独居石磁铁矿钛赤铁矿褐铁矿榍石
    18.520.030.271.060.230.130.660.120.04
    石英长石角闪石尖晶石三水铝石蓝晶石高岭石其他合计
    76.640.520.190.350.250.470.120.41100
    下载: 导出CSV

    表  3  原矿主要金属粒度分布

    Table  3.   Grain size of main valuable metal elements in raw ore

    粒级/mm产率/%品位/%占有率/%
    FeTiO2Zr(Hf)O2FeTiO2Zr(Hf)O2
    +1.251.581.462.040.150.370.310.33
    −1.25~+1.01.500.190.170.0350.050.020.07
    −1.0~+0.520.590.170.230.0570.570.451.61
    −0.5~+0.2552.583.055.570.2826.0025.5820.19
    −0.25~+0.122.5820.0333.252.3971.1372.0474.03
    −0.1~+0.0750.3616.2824.415.380.960.852.68
    −0.075~+0.0380.259.365.781.980.370.140.67
    −0.0380.556.1811.610.570.550.610.43
    合计100.006.3010.690.73100.00100.00100.00
    下载: 导出CSV

    表  4  原矿重选预富集试验结果

    Table  4.   Results of heavy minerals preconcentration from the raw ores by gravity separation

    产品
    名称
    产率/%品位/%回收率/%
    FeTiO2REOZr(Hf)O2FeTiO2REOZr(Hf)O2
    重砂23.7825.7643.730.442.8393.7093.1178.3293.64
    尾矿55.240.661.280.0440.0665.566.3318.225.08
    粗砂20.980.230.300.0220.0440.740.563.461.28
    原矿100.006.5411.170.130.72100.00100.00100.00100.00
    下载: 导出CSV

    表  5  弱磁选铁试验结果

    Table  5.   Results of magnetite separation from heavy concentrate by low-intensity magnetic separation

    产品名称对重砂产率/%品位/%对重砂回收率/%
    FeTiO2FeTiO2
    铁精矿0.1945.488.040.340.03
    尾矿99.8125.7243.8099.6699.97
    重砂100.0025.7643.73100.00100.00
    下载: 导出CSV

    表  6  高梯度磁场强度条件试验结果

    Table  6.   Experimental results of high gradient magnetic field intensity

    场强/
    T
    产品
    名称
    作业
    产率/%
    品位/%作业回收率/%
    TiO2REOZr(Hf)O2TiO2REOZr(Hf)O2
    0.2精矿51.2651.920.120.1560.7714.082.72
    尾矿48.7435.250.775.6439.2385.9297.28
    弱磁尾矿100.0043.800.442.83100.00100.00100.00
    0.3精矿68.5752.470.160.2582.1424.996.06
    尾矿31.4324.891.058.4517.8675.0193.94
    弱磁尾矿100.0043.800.442.83100.00100.00100.00
    0.4精矿75.9752.700.210.3191.4136.208.29
    尾矿24.0315.651.1710.848.5963.8091.71
    弱磁尾矿100.0043.800.442.84100.00100.00100.00
    0.5精矿77.6953.320.350.4794.5861.9112.91
    尾矿22.3110.650.7511.045.4238.0987.09
    弱磁尾矿100.0043.800.442.83100.00100.00100.00
    0.6精矿79.2653.310.390.5296.4669.9614.60
    尾矿20.747.480.6411.623.5430.0485.40
    弱磁尾矿100.0043.800.442.82100.00100.00100.00
    0.8精矿80.2153.160.420.5597.3576.5615.64
    尾矿19.795.860.5212.022.6523.4484.36
    弱磁尾矿100.0043.800.442.82100.00100.00100.00
    1.0精矿82.2652.710.430.6098.9980.3917.50
    尾矿17.742.480.4913.111.0119.6182.50
    弱磁尾矿100.0043.800.442.82100.00100.00100.00
    下载: 导出CSV

    表  7  高梯度磁选回收钛、稀土试验结果

    Table  7.   Results of high gradient magnetic separation of ilmenite and monazite from tailingS of low intensity magnetic separation

    产品
    名称
    产率/%品位/%回收率/%
    TiO2REOZr(Hf)O2TiO2REOZr(Hf)O2
    钛精矿152.3452.350.060.1162.667.192.03
    强磁中矿32.8749.131.101.4536.9382.7916.81
    强磁尾矿14.61.130.3015.740.3810.0281.16
    弱磁尾矿99.8143.800.442.8499.97100.00100.00
    下载: 导出CSV

    表  8  强磁中矿独居石精选分离试验结果

    Table  8.   Results of monazite separation from high intensity magnetic middlings

    产品
    名称
    产率/%品位/%回收率/%
    TiO2REOZr(Hf)O2TiO2REOZr(Hf)O2
    钛精矿228.9155.210.050.0436.503.970.84
    锆中矿11.026.483.3442.250.157.815.22
    独居石精矿0.530.1852.741.180.0063.960.22
    独居石中矿0.0721.4923.40.440.043.750.01
    干磁尾矿2.344.430.620.630.243.320.52
    强磁中矿32.8749.131.101.4536.9382.8016.81
    下载: 导出CSV

    表  9  强磁尾矿摇床选锆试验结果

    Table  9.   Table separation results of Zr from high intensity magnetic tailings

    产品名称产率/%品位/%回收率/%
    FeTiO2REOZr(Hf)O2TiO2REOZr(Hf)O2
    锆粗精矿3.110.462.290.1363.030.160.9369.23
    锆中矿10.120.482.450.2655.560.010.072.35
    锆中矿20.870.351.430.4224.650.030.847.58
    尾矿10.500.320.750.340.540.188.182.00
    强磁尾矿14.600.151.130.3015.740.3810.0281.16
    下载: 导出CSV

    表  10  锆粗精矿电选试验结果

    Table  10.   High-tension separation results of rough zircon concentrate

    产品名称产率/%品位/%回收率/%
    FeTiO2Zr(Hf)O2TiO2Zr(Hf)O2
    锆中矿0.322.4320.842.220.154.83
    锆精矿30.310.360.2665.040.007.16
    锆精矿20.770.400.2265.120.0017.74
    锆精矿11.700.130.0865.670.0039.51
    锆粗精矿3.110.462.2963.030.1669.23
    下载: 导出CSV

    表  11  重砂精选试验指标汇总

    Table  11.   Results of concentrate and middlings recovered from heavy minerals preconcentrate

    元素产品名称对重砂产率/%品位/%对重砂回收率/%
    Fe铁精矿0.1945.480.33
    TiO2钛精矿81.2553.3799.16
    REO独居石精矿0.5352.7463.96
    独居石中矿0.0723.403.75
    小计67.71
    Zr(Hf)O2锆精矿11.765.6739.51
    锆精矿2+31.0865.1024.90
    锆中矿合计2.2135.9825.15
    小计89.56
    下载: 导出CSV
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  • 收稿日期:  2022-04-18
  • 刊出日期:  2022-06-30

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