某含钛矿石中钛的赋存状态研究

王越, 王婧. 某含钛矿石中钛的赋存状态研究[J]. 矿产综合利用, 2022, 43(5): 200-205. doi: 10.3969/j.issn.1000-6532.2022.05.034
引用本文: 王越, 王婧. 某含钛矿石中钛的赋存状态研究[J]. 矿产综合利用, 2022, 43(5): 200-205. doi: 10.3969/j.issn.1000-6532.2022.05.034
Wang Yue, Wang Jing. Study on the Occurrence State of Titanium in a Titanium-containing Ore[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(5): 200-205. doi: 10.3969/j.issn.1000-6532.2022.05.034
Citation: Wang Yue, Wang Jing. Study on the Occurrence State of Titanium in a Titanium-containing Ore[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(5): 200-205. doi: 10.3969/j.issn.1000-6532.2022.05.034

某含钛矿石中钛的赋存状态研究

  • 基金项目: 中国地质调查局项目“稀土锂铍等战略性矿产综合利用技术研究与应用(DD20221697)”
详细信息
    作者简介: 王越(1984-),男,硕士,工程师。主要研究方向为矿产综合利用及工艺矿物学
  • 中图分类号: TD951

Study on the Occurrence State of Titanium in a Titanium-containing Ore

  • 为研究某含钛矿石是否具有综合利用价值,通过光学显微镜、X射线衍射仪、扫描电镜及矿物自动分析仪、电子探针等分析技术,对其物质组成、目的矿物嵌布特征、有价元素赋存状态等开展了系统的研究。结果表明,该矿石为含铁、钛的闪长岩类,矿石中TiO2品位为2.27%、TFe品位为11.36%,矿石中的铁品位低,没有达到铁矿石的最低工业品位。矿石中的TiO2主要赋存于钛铁矿及钛铁闪石中,分布率分别为40.02%和44.75%,占总分布率的84.79%;少量分布在榍石、金红石和磁铁矿(赤铁矿)中,分布率分别为7.93%、5.67%和1.59%,其中钛铁矿及金红石的矿物含量仅为1.86%和0.13%。矿石中金红石含量低,多与榍石、钛铁矿等连生,粒度微细,金红石中含有钙、铁、硅等杂质元素,这会直接影响金红石精矿的品位及回收率,采用阶磨阶选流程及重选、磁选及浮选的联合工艺,可有效回收矿石中的有用矿物。

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  • 图 1  钛铁矿的嵌布特征

    Figure 1. 

    图 2  含钛矿物的X射线面扫描

    Figure 2. 

    图 3  磁铁矿的嵌布特征

    Figure 3. 

    图 4  金红石的嵌布特征

    Figure 4. 

    图 5  钛铁闪石的嵌布特征

    Figure 5. 

    表 1  原矿化学多元素分析/%

    Table 1.  Chemical analysis results of the ore

    CaOMgOK2OTiO2SiO2Al2O3TFeCuOZnONa2OSO3P2O5NbTa
    11.1547.2630.4122.27040.25218.96111.3600.0090.0162.2310.4310.13900
    下载: 导出CSV

    表 2  矿石中矿物组成及含量/%

    Table 2.  Mineral composition and content of the ore

    钛铁矿金红石磁铁矿/赤铁矿钛磁铁矿黄铁矿榍石磷灰石
    1.860.139.150.470.020.480.23
    角闪石辉石钛铁闪石绿帘石钾长石斜长石绿泥石
    1.260.0838.688.930.0330.915.10
    黑云母白云母碳酸盐矿物石英黏土矿物其他总计
    0.351.570.100.240.180.23100.00
    下载: 导出CSV

    表 3  钛铁矿电子探针微区分析元素含量/%

    Table 3.  Element composition and content of the ilmenite by EPMA

    点号MgOCaOFeOMnOAl2O3SiO2TiO2总量
    10.140.6645.113.530.030.0349.5599.05
    20.141.1343.754.620.010.0448.5498.22
    30.142.0242.936.230.000.0047.5798.89
    40.121.4344.335.180.000.0147.0098.07
    50.301.1544.584.220.010.0348.1298.41
    平均0.171.2844.144.760.010.0248.1698.53
    下载: 导出CSV

    表 4  磁铁矿电子探针微区分析元素含量/%

    Table 4.  Element composition and content of the magnetite by EPMA

    点号MgOCaOFeOMnOAl2O3SiO2TiO2总量
    10.000.0492.530.000.060.020.1392.77
    20.040.1590.120.020.050.050.0590.47
    30.020.1690.710.000.070.100.0091.05
    40.000.0692.370.000.040.020.3892.87
    50.010.0291.950.000.130.000.0092.10
    60.000.0492.580.000.040.051.8194.52
    平均0.010.0891.710.000.060.040.3992.30
    下载: 导出CSV

    表 5  钛铁闪石的电子探针微区分析元素含量/%

    Table 5.  Element composition and content of the kaersutite by EPMA

    点号MgOCaOFeOMnOAl2O3SiO2TiO2Na2OK2O总量
    114.6210.5612.550.2012.8342.712.152.940.4599.01
    28.957.3225.440.4310.6841.352.781.630.2198.78
    313.6710.6710.940.2011.8944.963.172.860.4898.84
    414.8710.7511.160.2012.5843.482.902.740.5099.17
    513.5810.609.570.1812.4846.741.982.980.4498.53
    平均13.149.9813.930.2412.0943.852.592.630.4198.86
    下载: 导出CSV

    表 6  原矿中主要矿物的单体解离度/%

    Table 6.  Monomer dissociation of main minerals in the ore

    粒级/mm钛铁矿金红石榍石磁铁矿钛铁闪石斜长石绿泥石绿帘石
    -0.25+0.1536.2911.6634.6856.9174.3664.0145.5239.64
    -0.15+0.07551.3020.6534.1373.9383.6879.2862.8557.57
    -0.075+0.04563.4034.2951.5581.2578.2077.7773.9266.43
    -0.04586.1870.2583.2693.2389.7992.7292.6388.91
    下载: 导出CSV

    表 7  矿石中钛的金属量平衡

    Table 7.  Metal mass balance of titanium content in the ore

    矿物分类矿物名称矿物含量/%矿物中的TiO2品位/%Ti金属量
    /%
    Ti在各矿物中的分布率/%
    金属矿物钛铁矿1.86048.1600.89640.02
    金红石0.13097.7200.1275.67
    榍石0.47037.7900.1787.93
    磁铁矿(赤铁矿)9.1500.3900.0361.59
    脉石矿物钛铁闪石38.6802.5901.00244.75
    绿泥石5.1000.0120.0010.03
    总计总计2.239100.00
    原矿原矿2.270
    Fe的平衡系数2.239/2.270=0.986
    下载: 导出CSV
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出版历程
收稿日期:  2022-07-26
刊出日期:  2022-10-25

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