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川北铝土岩型钒矿钒的赋存状态与可选性实验研究

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段威, 黄健, 唐文春, 张飞, 黎隆昌, 冉强, 惠博, 杨进忠. 川北铝土岩型钒矿钒的赋存状态与可选性实验研究[J]. 矿产综合利用, 2022, (1): 146-151. doi: 10.3969/j.issn.1000-6532.2022.01.019
引用本文: 段威, 黄健, 唐文春, 张飞, 黎隆昌, 冉强, 惠博, 杨进忠. 川北铝土岩型钒矿钒的赋存状态与可选性实验研究[J]. 矿产综合利用, 2022, (1): 146-151. doi: 10.3969/j.issn.1000-6532.2022.01.019
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Duan Wei, Huang Jian, Tang Wenchun, Zhang Fei, Li Longchang, Ran Qiang, Hui Bo, Yang Jinzhong. Study on Occurrence and Optionality of Vanadium in Bauxite-type Vanadium Deposits, Northern Sichuan.[J]. Multipurpose Utilization of Mineral Resources, 2022, (1): 146-151. doi: 10.3969/j.issn.1000-6532.2022.01.019
Citation: Duan Wei, Huang Jian, Tang Wenchun, Zhang Fei, Li Longchang, Ran Qiang, Hui Bo, Yang Jinzhong. Study on Occurrence and Optionality of Vanadium in Bauxite-type Vanadium Deposits, Northern Sichuan.[J]. Multipurpose Utilization of Mineral Resources, 2022, (1): 146-151. doi: 10.3969/j.issn.1000-6532.2022.01.019
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川北铝土岩型钒矿钒的赋存状态与可选性实验研究

  • 1.

    四川省地质矿产勘查开发局化探队, 四川　德阳　618000

  • 2.

    四川省深地地质勘查有限公司，四川　德阳　618000

  • 3.

    中国地质科学院矿产综合利用研究所，四川　成都　610041

  • 基金项目: 四川省地质勘查基金项目《四川省旺苍县黄洋-五权地区钒矿普查》（川国土资函[2018]132号）；四川省地矿局科技计划项目《四川扬子地台西缘北段稀散元素矿产找矿预测》
详细信息
    作者简介: 段威（1988-）,男,学士,工程师, 研究方向为地质矿产勘查

  • 中图分类号: TD951

Study on Occurrence and Optionality of Vanadium in Bauxite-type Vanadium Deposits, Northern Sichuan.

  • 1.

    Geochemistry Exploration Brigade of Sichuan Bureau of Exploration and Development of Geology and Minerals Resources, Deyang, Sichuan, China

  • 2.

    Sichuan Deep Resource Geological Exploration Co., Ltd., Deyang, Sichuan, China

  • 3.

    Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Chengdu,Sichuan,China

    摘要

  • 川北铝土岩型钒矿是一种新发现的钒矿床类型，通过开展钒的工艺矿物学及可选性研究，发现钒有两种赋存状态：主要呈钒云母的独立矿物形式存在，另一种则呈类质同象的形式存在于绢云母和伊利石中。钒的可选性实验研究表明该铝土岩型钒矿经济可选，采用“重选选硫-尾矿氧化焙烧碱浸钒钼-浸渣选粘土”的选冶联合工艺，可以有效回收矿石中有价元素钒、钼，并综合利用矿石中伴生的黄铁矿和粘土矿物。其中，钒的渣计浸出率74.42%、液计浸出率75.97%，钼的渣计浸出率88.77%、液计浸出率91.00%。

    Bauxite-type vanadium deposit in north sichuan is a newly discovered type of vanadium deposit. Through the study of process mineralogy and selectivity of vanadium, it is found that vanadium has two kinds of occurrence states: The main is an independent mineral in the form of vanadite, and the other is in the form of isomorphism in sericite and illite. The experimental study on the washability of vanadium ore shows that the bauxite type vanadium ore is economic. The valuable element vanadium and molybdenum in ore can be recovered effectively by the combined flowsheet of “ Recovery of sulfide by heavy separation- recovery of vanadium and molybdenum from tailings by roasting in air and alkaline leaching-Recovery of clay ore by leaching residue”. The associated pyrite and clay minerals in ore are utilized synthetically. After the test, the slag leaching rate of vanadium is 74.42%, the liquid leaching rate of vanadium is 75.97%, the slag leaching rate of molybdenum is 88.77%, the liquid leaching rate of molybdenum is 91.00%.

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  • 图 1  X射线衍射分析图谱

    Figure 1. 

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    图 2  样品的的扫描电镜图像(a)及能谱图(b)

    Figure 2. 

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    图 3  钒矿石综合回收全流程及条件

    Figure 3. 

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    图 4  钒矿石综合回收全流程及条件

    Figure 4. 

    下载: 全尺寸图片 幻灯片

    表 1  矿石的XRF测试结果/%

    Table 1.  XRF results of the ore

    V2O5MoO3SiO2Al2O3Fe2O3K2OTiO2SNa2OMgOCaOCr2O3
    0.910.06750.821.49.422.373.641.330.410.490.140.20
    下载: 导出CSV

    表 2  矿石化学多元素分析结果/%

    Table 2.  Chemical multi-element analysis results of the ore

    V2O5MoSiO2Al2O3SK2ONa2OCaOMgOTFeTiO2总C
    0.960.05039.422.27.821.881.410.530.729.642.180.38
    下载: 导出CSV

    表 3  矿石的矿物组成

    Table 3.  Mineral composition of the ore

    矿物石墨有机碳粘土矿物（包括钒云母、
    绢云母、伊利石、高岭石）
    含量/%00.362.7
    矿物石英黄铁矿锐钛矿褐铁矿斜长石方解石石膏
    含量/%13.416.12.22.90.30.21.4
    下载: 导出CSV

    表 4  粘土矿物电子探针分析结果/%

    Table 4.  Electron microprobe analyses of clay minerals in the ore samples

    样点Na2OK2OV2O5MgOCaOFeOAl2O3SiO2TiO2合计
    fm-9 0.64 2.22 1.40 1.03 0.00 0.51 31.50 53.21 1.48 91.99
    fm-8 0.50 1.52 0.77 0.77 0.02 2.22 27.61 50.58 1.56 85.53
    fm-7 0.47 2.88 0.33 1.34 0.00 2.09 29.12 50.89 1.07 88.20
    fm-6 0.25 2.73 0.14 1.05 0.00 0.55 24.26 56.91 0.38 86.26
    fm-5 0.74 2.66 2.14 1.22 0.00 0.59 31.05 51.87 1.77 92.06
    fm-4 0.59 1.41 0.45 0.83 0.11 0.83 29.56 45.07 4.05 82.89
    平均值 0.53 2.24 0.87 1.04 0.02 1.13 28.85 51.42 1.72 87.28
    最大值 0.74 2.88 2.14 1.34 0.11 2.22 31.50 56.91 4.05 92.06
    最小值 0.25 1.41 0.14 0.77 0.00 0.51 24.26 45.07 0.38 82.89
    下载: 导出CSV

    表 5  硫酸浸出工艺综合条件实验结果

    Table 5.  Synthetical condition test results of sulfuric acid leaching

    H2SO4
    /mL    		浸液
    /mL    		渣率
    /%    		浸渣品位/%渣计浸出率/%浸液品位/%液计浸出率/%
    V2O5MoV2O5MoV2O5MoV2O5Mo
    50 497.3 92.25 0.35 0.022 70.65 60.21 1.97 0.073 74.42 59.32
    60 494.0 87.42 0.22 0.021 82.52 64.00 2.24 0.078 83.83 62.96
    下载: 导出CSV

    表 6  焙烧-碱浸出工艺综合条件实验结果

    Table 6.  Synthetical condition test results of roasting-alkali leaching

    浸液
    /mL    		渣率
    /%    		浸渣品位/%渣计浸出率/%浸液品位/%液计浸出率/%
    V2O5MoV2O5MoV2O5MoV2O5Mo
    494112.350.280.005774.4288.772.270.12675.9791.00
    下载: 导出CSV

    表 7  碱浸渣、细泥粘土及沉砂产品化学分析结果/%

    Table 7.  Chemical analysis results of basic leached residue andfine clayand tailings settling

    名称Al2O3SiO2K2ONa2OCaOMgOTiO2TFe2O3S
    碱浸渣24.5748.751.975.200.620.992.515.910.069
    细泥粘土24.7749.991.974.920.731.042.464.540.052
    沉砂22.3947.191.871.850.691.232.8912.800.054
    下载: 导出CSV
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出版历程
收稿日期:  2020-03-30
修回日期:  2021-05-06
刊出日期:  2022-02-25

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