Experimental Study on the Recovery of Rare Earth from a Low Grade Rare Earth Tailings in Sichuan
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摘要:
这是一篇矿物加工工程领域的论文。本研究以四川某稀土尾矿为研究对象，通过工艺矿物学研究表明尾矿中稀土金属成分的分布矿物较一致，主要存在矿物为氟碳铈矿及氟碳钙铈矿。由于样品中稀土品位较低，仅为1.06%，采用重选工艺对尾矿中的稀土矿物进行预富集，以达到降低选矿成本的目的。对预富集的产品开展浮-磁工艺研究，捕收剂采用自主研发的植物基部分取代氨基苯环的绿色高效药剂RF802，抑制剂采用水玻璃，经一粗三精一扫的浮选工艺和强磁选工艺，可获得REO品位为53.63%、回收率为70.54%的稀土精矿，实现了该低品位稀土尾矿中稀土矿物的有效回收利用。
Abstract:This is an essay in the field of mineral processing engineering. This study focuses on a rare earth tailing in Sichuan province. Mineralogy research shows that the distribution minerals of rare earth metal composition in the tailing are relatively consistent and the main minerals are bastnasite and synchisite. For the reason that the low grade of rare earth in the sample, only contains 1.06%, the gravity separation process is adopted to preconcentrate the rare earth minerals in the tailing to reduce the cost of processing. The floating-magnetic process is carried out on the preconcentration product with a self-developed mixed collector and water glass as inhibitor. The combined flotation process of "one roughing-one sweeping-three cleanings" and high intensity magnetic separation could obtain a rare earth concentrate with REO grade of 53.63% and recovery of 70.54% which successfully achieves the recycling rare earth from the low-grade rare earth tailings.
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Key words:
- Mineral processing engineering /
- Rare earth tailing /
- Preconcentration /
- Flotation /
- Magnetic separation
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表 1 样品化学多项分析结果/%
Table 1. Results of chemical multielement analysis of sample
TREO SrO CaF2 BaO SiO2 Al2O3 MgO Fe2O3 S K2O MnO TiO2 ThO2 Zn Pb CaO 1.06 10.77 17.39 3.59 20.24 7.30 1.08 2.88 1.65 2.66 0.14 0.23 0.0032 0.023 0.014 18.12 
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表 2 闭路实验结果
Table 2. Test results of closed circuit
产品名称 产率/% REO品位/% REO回收率/% 硫精矿 4.90 3.08 5.48 稀土精矿 3.63 53.63 70.54 稀土尾矿 2.02 1.22 0.89 尾矿 89.45 0.71 23.09 给矿 100.00 2.76 100.00
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[1] 任旭东. 我国稀土矿产资源开采利用现状及发展策略浅析[J]. 轻金属, 2012(9):8-11. REN X D. Analysis of the current situation and development strategy of rare earth mineral resources exploitation and utilization in China[J]. Light metals, 2012(9):8-11. doi: 10.3969/j.issn.1002-1752.2012.09.002
REN X D. Analysis of the current situation and development strategy of rare earth mineral resources exploitation and utilization in China[J]. Light metals, 2012(9): 8-11. doi: 10.3969/j.issn.1002-1752.2012.09.002
[2] 干勇, 彭苏萍, 毛景文, 等. 我国关键矿产及其材料产业供应链高质量发展战略研究[J]. 中国工程科学, 2022, 24(3):1-9. GAN Y, PENG S P, MAO J W, et al. Research on high-quality development strategy of supply chain of key mineral and its materials industry in China[J]. China Engineering Science, 2022, 24(3):1-9.
GAN Y, PENG S P, MAO J W, et al. Research on high-quality development strategy of supply chain of key mineral and its materials industry in China[J]. China Engineering Science, 2022, 24(3): 1-9.
[3] 翟明国. 战略性关键金属矿产资源: 现状与问题[J]. 中国科学基金, 2019, 33(2):106-111. HUO M G. Strategic key metal mineral resources: current situation and problems[J]. China Science Foundation, 2019, 33(2):106-111.
HUO M G. Strategic key metal mineral resources: current situation and problems [J]. China Science Foundation, 2019, 33(2): 106-111.
[4] 王盼盼, 陈林, 杨晓军, 等. 四川典型轻稀土赋存状态[J]. 矿产综合利用, 2019(6):60-64. WANG P P, CHEN L, YANG X J, et al. Study on occurrence of rare earth in Dalucao, Dechang, Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2019(6):60-64. doi: 10.3969/j.issn.1000-6532.2019.06.0013
WANG P P, CHEN L, YANG X J, et al. Study on occurrence of rare earth in Dalucao, Dechang, Sichuan[J]. Multipurpose Utilization of Mineral Resources, 2019(6): 60-64. doi: 10.3969/j.issn.1000-6532.2019.06.0013
[5] 文登学. 白云鄂博稀选尾矿中铌的回收实验[J]. 矿产综合利用, 2019(3):121-126. WEN D X. Experiment of recovery of niobium in the tailings of Baiyun Ebo[J]. Multipurpose Utilization of Mineral Resources, 2019(3):121-126. doi: 10.3969/j.issn.1000-6532.2019.03.027
WEN D X. Experiment of recovery of niobium in the tailings of Baiyun Ebo[J]. Multipurpose Utilization of Mineral Resources, 2019(3): 121-126. doi: 10.3969/j.issn.1000-6532.2019.03.027
[6] 黄雯孝, 卢可可. 攀西钒钛磁铁矿尾矿中钪的提取工艺研究[J]. 矿产综合利用, 2020(2):135-139. HUANG W X, LU K K. Study on scandium extraction technology for Panxi vanadium titanium magnetite tailings[J]. Multipurpose Utilization of Mineral Resources, 2020(2):135-139. doi: 10.3969/j.issn.1000-6532.2020.02.024
HUANG W X, LU K K. Study on scandium extraction technology for Panxi vanadium titanium magnetite tailings[J]. Multipurpose Utilization of Mineral Resources, 2020(2): 135-139. doi: 10.3969/j.issn.1000-6532.2020.02.024
[7] 邓善芝, 邓杰, 熊文良, 等. 某稀土尾矿综合利用技术研究[J]. 稀土, 2018(4):77-85. DENG S Z, DENG J, XIONG W L, et al. Research on comprehensive utilization technology of rare earth tailings[J]. Rare earth, 2018(4):77-85. doi: 10.16533/J.CNKI.15-1099/TF.201804011
DENG S Z, DENG J, XIONG W L, et al. Research on comprehensive utilization technology of rare earth tailings[J]. Rare earth, 2018(4): 77-85. doi: 10.16533/J.CNKI.15-1099/TF.201804011
[8] 秦玉芳, 马莹, 李娜. 白云鄂博尾矿库及其资源利用研究概况[J]. 矿产综合利用, 2020(6):100-109. QING Y F, MA Y, LI N. Research situation of Baiyun Obo tailings pond and its resource utilization[J]. Multipurpose Utilization of Mineral Resources, 2020(6):100-109. doi: 10.3969/j.issn.1000-6532.2020.06.018
QING Y F, MA Y, LI N. Research situation of Baiyun Obo tailings pond and its resource utilization [J]. Multipurpose Utilization of Mineral Resources, 2020(6): 100-109. doi: 10.3969/j.issn.1000-6532.2020.06.018
[9] 熊文良, 邓善芝, 曾小波, 等. 稀土矿的"浮团聚-磁选"新技术研究[J]. 稀土, 2015, 36(6):61-67. XIONG W L, DENG S Z, ZENG X B, et al. Research on new technology of floating agglomeration-magnetic separation of rare earth ore[J]. Rare earth, 2015, 36(6):61-67.
XIONG W L, DENG S Z, ZENG X B, et al. . Research on new technology of ' floating agglomeration-magnetic separation ' of rare earth ore[J]. Rare earth, 2015, 36(6): 61-67.
[10] 袁帅. 东鞍山贫赤铁矿石阶段磨选新技术研究[D]. 沈阳: 东北大学, 2015.
YAN S. Research on new technology of stage grinding and separation of poor hematite ore in Donganshan[D]. Shenyang: Northeast University, 2015.
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