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西秦岭格尔托金矿工艺矿物学与选冶实验

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王滔, 李林积, 梁硕鹏. 西秦岭格尔托金矿工艺矿物学与选冶实验[J]. 矿产综合利用, 2022, 43(4): 94-99. doi: 10.3969/j.issn.1000-6532.2022.04.017
引用本文: 王滔, 李林积, 梁硕鹏. 西秦岭格尔托金矿工艺矿物学与选冶实验[J]. 矿产综合利用, 2022, 43(4): 94-99. doi: 10.3969/j.issn.1000-6532.2022.04.017
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Wang Tao, Li Linji, Liang Shuopeng. Process Mineralogy and Beneficiation-Metallurgy Test of Geertuo Gold Deposit, West Qinling[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(4): 94-99. doi: 10.3969/j.issn.1000-6532.2022.04.017
Citation: Wang Tao, Li Linji, Liang Shuopeng. Process Mineralogy and Beneficiation-Metallurgy Test of Geertuo Gold Deposit, West Qinling[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(4): 94-99. doi: 10.3969/j.issn.1000-6532.2022.04.017
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西秦岭格尔托金矿工艺矿物学与选冶实验

  • 甘肃省地质矿产勘查开发局第三地质矿产勘查院，甘肃　兰州　730050

详细信息
    作者简介: 王滔（1984-），男，硕士，工程师，从事固体矿产勘查工作。

  • 中图分类号: TD982;P618.1

Process Mineralogy and Beneficiation-Metallurgy Test of Geertuo Gold Deposit, West Qinling

  • Geological and Mineral Exploration Team No.3, Gansu Bureau of Geology and Mineral Exploration and Development, Lanzhou, Gansu, China

    摘要

  • 通过详细的野外地质调查，利用高精度矿相显微镜、图像分析仪、X射线衍射分析仪、扫描电镜等检测方法，对格尔托金矿工艺矿物学特征进行研究，结果显示：金属矿物主要为赤-褐铁矿，非金属矿物主要为方解石和石英。金主要以自然金的形式存在，含量99%以上，粒度3～20 μm，属显微金。金与载体矿物之间的嵌布关系主要有裂隙金、粒间金和包裹金。根据矿石矿物特征，选冶对比实验表明全泥氰化浸出方案是该类矿山较佳的选冶工艺。

    Through detailed field geological survey, using high-precision mineral phase microscope, image analyzer, X-ray diffraction analyzer, scanning electron microscope and other testing methods, the research on the mineralogical characteristics of the Geertuo gold deposit, the results show that the metallic minerals are mainly hematite and limonite, and the non-metallic minerals are mainly calcite and quartz. Gold mainly exists in the form of natural gold, the content is more than 99%, and the particle size is between 3 μm and 20 μm, which belongs to microscopic gold. The intercalation relationship between gold and carrier minerals mainly includes fractured gold, intergranular gold and encapsulated gold. According to the characteristics of ore and minerals, the comparison test of beneficiation and smelting shows that the all-slime cyanide leaching scheme is a better beneficiation and smelting process for this type of mine.

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  • 图 1  原矿X射线衍射分析

    Figure 1. 

    下载: 全尺寸图片 幻灯片

    图 2  金矿物能谱分析结果

    Figure 2. 

    下载: 全尺寸图片 幻灯片

    图 3  金颗粒的电子显微镜BSE照片

    Figure 3. 

    下载: 全尺寸图片 幻灯片

    图 4  铁矿物的显微镜下照片

    Figure 4. 

    下载: 全尺寸图片 幻灯片

    图 5  方解石与石英的显微镜下照片

    Figure 5. 

    下载: 全尺寸图片 幻灯片

    表 1  原矿化学多项分析结果/%

    Table 1.  Multiple chemistry analysis results of raw ore

    Au*Ag*Cu*Pb*Zn*As*SPTFeTiO2
    3.651.4810.18.752.591560.030.0381.460.13
    SiO2Al2O3CaOMgOK2ONa2OMnO总碳LOI
    43.253.8626.490.170.170.0640.0315.8824.2
    *单位为g/t
    下载: 导出CSV

    表 2  原矿金物相分析结果

    Table 2.  Results of the phase analysis of the original ore gold

    名称连生体金自然金硫化物中金碳酸盐中金氧化铁中金硅酸盐中金合计
    含量/（g·t-1)0.0723.00.270.320.0740.0353.649
    占有率/%1.9780.847.488.692.030.96100.00
    下载: 导出CSV

    表 3  选冶方式对比结果

    Table 3.  Comparison results of beneficiation methods

    选冶方式产品名称产率/%品位/(g·t-1)浸出率/%备注
    全泥氰化浸出含金贵液--88.22
    浸渣0.4311.78
    原矿3.65100
    中性油浮选
    除碳-氰化浸出    		含金贵液84.56柴油
    碳质0.7717.63.72
    浸渣99.230.43111.72
    含金贵液79.04煤油
    碳质1.4522.79
    浸渣98.550.44311.96
    焙烧除碳-氰化浸出含金贵液83.2原矿细磨-焙烧
    烧损5.5//
    浸渣94.50.65216.8
    含金贵液88.03原矿焙烧-细磨
    烧损1.59//
    浸渣98.410.44411.97
    中性油浮选除碳-
    碳质焙烧-氰化浸出    		含金贵液67.5煤油
    碳质含金贵液19.72
    烧损0.18//
    碳质浸渣8.580.821.93
    浸渣91.240.43410.85
    下载: 导出CSV
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收稿日期:  2022-03-09
刊出日期:  2022-08-25

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