| 非洲某铌钽砂矿综合利用研究 |
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| 引用本文： | 孔龙玺,孙旭鹏,张蓬生.非洲某铌钽砂矿综合利用研究[J].现代矿业,2020,36(5):94-97. |
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| 作者姓名： | 孔龙玺 孙旭鹏 张蓬生 |
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| 作者单位： | 1.河南省地矿局第五地质勘查院；2.河南省小秦岭国家级自然保护区管理局 |
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| 摘 要： | 为了提高铌钽精矿的质量和品级，针对粗精矿中电气石的比磁化系数和钽铌矿接近，介电常数与锡石相近，后续提纯难以分离的问题，对钽铌粗精矿进行了分级重选—磁选—电选的联合工艺流程试验，研究获得了含Nb2O5 48.595%、Ta2O5 4.468%，回收率Nb2O5为59.03%、Ta2O5为54.37%的铌钽精矿。试验矿物回收率达到国内领先水平，同时其他有用矿物也得到了综合回收利用。
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| 关 键 词： | 粗精矿 铌铁矿 磁—电联合工艺 综合利用 |
Comprehensive Utilization Study on a Nb Ta Placer Deposit in Africa |
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| Kong Longxi Sun Xupeng Zhang Pengsheng.Comprehensive Utilization Study on a Nb Ta Placer Deposit in Africa[J].Modern Mining,2020,36(5):94-97. |
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| Authors: | Kong Longxi Sun Xupeng Zhang Pengsheng |
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| Affiliation: | 1.No.5 Institute of Geo Exploration of Henan Bureau of Geo Exploration & Mineral Development;
2.Henan Xiaoqinling National Nature Reserve Admimistration |
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| Abstract: | In order to improve the quality and grade of tantalum niobium concentrate,for the problem of similar specific magnetic susceptibility between tourmaline and tantalum niobium ore,similar dielectric constant with tin ore,which results in difficulty in subsequent separation process,combined process test of graded gravity separation magnetic separation electric separation was carried out.Niobium and tantalum concentrate containing Nb2O5 48.595%,Ta2O5 4.468% and recovery rates of Nb2O5 59.03% and Ta2O5 5734% were obtained.Through experiments,the mineral recovery rate has reached the domestic leading level,and other useful minerals have also been comprehensively recycled. |
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| Keywords: | Rough concentrate Niobite Combined process of magnetic electrostatic separation Comprehensive utilization |
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