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Volume 31 Issue 1
Jan.  2024
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文章导航 >  矿物冶金与材料学报（英文）  > 2024  >  31(1): 71-80
Xu Wang, Zhengquan Zhang, Yanfang Cui, Wei Li, Congren Yang, Hao Song, Wenqing Qin, and Fen Jiao, Alkyl dimethyl betaine activates the low-temperature collection capacity of sodium oleate for scheelite, Int. J. Miner. Metall. Mater., 31(2024), No. 1, pp. 71-80. https://doi.org/10.1007/s12613-023-2718-2
Cite this article as:
Xu Wang, Zhengquan Zhang, Yanfang Cui, Wei Li, Congren Yang, Hao Song, Wenqing Qin, and Fen Jiao, Alkyl dimethyl betaine activates the low-temperature collection capacity of sodium oleate for scheelite, Int. J. Miner. Metall. Mater., 31(2024), No. 1, pp. 71-80. https://doi.org/10.1007/s12613-023-2718-2
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研究论文

烷基二甲基甜菜碱提高油酸钠对白钨矿的低温捕收能力

  • 1)

    中南大学资源加工与生物工程学院，长沙 410083，中国

  • 2)

    中南大学战略含钙矿物清洁高效利用湖南省重点实验室，长沙 410083，中国

  • 3)

    德雷塞尔大学工程学院, 费城 19102，美国

  • 4)

    洛阳振北工贸有限公司, 河南洛阳 47100，中国



  • 通讯作者:

    覃文庆    E-mail: qinwenqing369@126.com

    焦芬    E-mail: jfen0601@126.com

文章亮点

  • (1) 甜菜碱提高了油酸钠的低温捕收能力。
  • (2) 十八烷基二甲基甜菜碱优化了油酸钠在低温下的分散性和起泡性。
  • (3) 十八烷基二甲基甜菜碱和油酸钠的组合使用提高了低温下栾川白钨矿的回收率。
  • 提高低温环境下白钨矿的回收率一直都是矿物加工领域研究的热点。本研究通过不同规模的浮选试验评估了不同碳链长度的烷基二甲基甜菜碱提高油酸钠对白钨矿低温捕收能力的效果。并结合红外光谱、X射线光电子能谱、表面张力测量、泡沫性能测试和浮选药剂分散性测试，探究了低温下烷基二甲基甜菜碱和油酸钠的协同作用机制。浮选试验结果表明，当十八烷基二甲基甜菜碱和油酸钠按质量比4:96混合使用时，对白钨矿表现出最优的捕收能力。在8-12°C的低温环境下，可以将栾川低品位白钨矿的粗选回收率提高3.48%，大幅度提升了白钨矿回收的经济效益。机理研究结果表明，十八烷基二甲基甜菜碱不能直接对白钨矿产生捕收作用，而是通过改善油酸钠在低温环境下的分散性和起泡能力，间接提高了低温环境下油酸钠对白钨矿的捕收能力。甜菜碱可以作为一种添加剂的选择引入到油酸钠中，以改善油酸钠的低温捕收性能。
    • Research Article

    Alkyl dimethyl betaine activates the low-temperature collection capacity of sodium oleate for scheelite

    + Author Affiliations
      Abstract
    • The impact of alkyl dimethyl betaine (ADB) on the collection capacity of sodium oleate (NaOl) at low temperatures was evaluated using flotation tests at various scales. The low-temperature synergistic mechanism of ADB and NaOl was explored by infrared spectroscopy, X-ray photoelectron spectroscopy, surface tension measurement, foam performance test, and flotation reagent size measurement. The flotation tests revealed that the collector mixed with octadecyl dimethyl betaine (ODB) and NaOl in a mass ratio of 4:96 exhibited the highest collection capacity. The combined collector could increase the scheelite recovery by 3.48% at low temperatures of 8–12°C. This is particularly relevant in the Luanchuan area, which has the largest scheelite concentrate output in China. The results confirmed that ODB enhanced the collection capability of NaOl by improving the dispersion and foaming performance. Betaine can be introduced as an additive to NaOl to improve the recovery of scheelite at low temperatures.
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    • Supplementary Information-10.1007s12613-023-2718-2.docx
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