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Journal of Central South University

, Volume 25, Issue 12, pp 2971–2978 | Cite as

Improving collecting performance of sodium oleate using a polyoxyethylene ether in scheelite flotation

  • Chen Chen (陈臣)
  • Hai-ling Zhu (朱海玲)
  • Wen-qing Qin (覃文庆)Email author
  • Li-yuan Chai (柴立元)
  • Wen-hao Jia (贾文浩)
Article
  • 3 Downloads

Abstract

In order to improve the scheelite flotation with sodium oleate (NaOL), the effect of a non-ionic polyoxyethylene ether (JFC-5) on the floatability of scheelite was investigated through flotation experiments at 10 °C, compared with 60 mg/L NaOL alone, the recovery of scheelite is improved from 22% to 85% in the presence of JFC-5 with a mass ratio of 20% at pH 10. Moreover, the resistance to Ca2+ of NaOL is increased. The adsorption mechanism was analyzed by zeta potential measurement, contact angle measurement and X-ray photoelectron spectroscopy (XPS) analysis. The results show that the adsorption of NaOL on scheelite surface is enhanced after adding JFC-5 due to the more negative zeta potentials and larger contact angles of scheelite. And the co-adsorption of NaOL and JFC-5 is confirmed by XPS analysis, so it is indicated that the adsorption of JFC-5 decreases the electrostatic repulsion between the oleate ions, resulting in the stronger adsorption of NaOL on scheelite surface. In short, the mixed NaOL/JFC-5 collector can effectively improve scheelite flotation.

Key words

scheelite polyoxyethylene ether synergistic effect low temperature flotation adsorption 

聚氧乙烯醚改善油酸钠在白钨矿浮选中的捕收性能

摘要

为了增强油酸钠体系下白钨矿的浮选行为,通过浮选试验考察了一种非离子型聚氧乙烯醚JFC-5 对白钨矿在10 °C 时可浮性的影响。与单独使用60 mg/L 油酸钠时相比较,当pH=10,添加质量比为 20%的JFC-5 时,白钨矿的浮选回收率由22%提高到85%。此外,油酸钠的抗钙离子能力得以增强。 通过动电位测试、接触角测量和X 射线光电子能谱(XPS)考察了捕收剂在矿物表面的吸附机理,结 果显示添加JFC-5 后,白钨矿表面的动电位更负且接触角更大,表明油酸钠在白钨矿表面的吸附增强。 XPS 分析结果证实了JFC-5 和油酸钠在白钨矿表面的共吸附,从而推测JFC-5 在白钨矿表面的吸附减 弱低了油酸根离子之间的静电斥力,使得油酸钠在白钨矿表面的吸附更强。总之,油酸钠/JFC-5 组合 捕收剂可以有效改善白钨矿浮选。

关键词

白钨矿 聚氧乙烯醚 增效作用 低温浮选 吸附 

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References

  1. [1]
    HU Yue, YANG Fan, SUN Wei. The flotation separation of scheelite from calcite using a quaternary ammonium salt as collector [J]. Minerals Engineering, 2011, 24(1): 82–84.CrossRefGoogle Scholar
  2. [2]
    MARTINS J I, AMARANTE M M. Scheelite flotation from tarouca mine ores [J]. Mineral Processing & Extractive Metallurgy Review, 2013, 34(6): 367–386.CrossRefGoogle Scholar
  3. [3]
    YANG Fan, SUN Wei, HU Yue, LONG Si. Cationic flotation of scheelite from calcite using quaternary ammonium salts as collector: Adsorption behavior and mechanism [J]. Minerals Engineering, 2015, 81(10): 18–28.CrossRefGoogle Scholar
  4. [4]
    MENG Qing, FENG Qi, OU Le. Flotation behavior and adsorption mechanism of fine wolframite with octyl hydroxamic acid [J]. Journal of Central South University, 2016, 23(6): 1339–1344.CrossRefGoogle Scholar
  5. [5]
    LI Yong, LI Chang. Selective flotation of scheelite from calcium minerals with sodium oleate as a collector and phosphates as modifiers. II. Mechanism of the interaction between phosphate modifiers and minerals [J]. International Journal of Mineral Processing, 1983, 10(3): 219–235.Google Scholar
  6. [6]
    LIU Cheng, FENG Qi, ZHANG Guo, CHEN Wei, CHEN Yan. Effect of depressants in the selective flotation of scheelite and calcite using oxidized paraffin soap as collector [J]. International Journal of Mineral Processing, 2016, 157(10): 210–215.CrossRefGoogle Scholar
  7. [7]
    YOUNG C A, MILLER J D. Effect of temperature on oleate adsorption at a calcite surface: An FT-NIR/IRS study and review [J]. International Journal of Mineral Processing, 2000, 58(1–4): 331–350.CrossRefGoogle Scholar
  8. [8]
    SIS H, CHANDER S. Adsorption and contact angle of single and binary mixtures of surfactants on apatite [J]. Minerals Engineering, 2003, 16(9): 839–848.CrossRefGoogle Scholar
  9. [9]
    SOMASUNDARAN P, XIAO L, VASUDEVAN T V. Separation of salt-type minerals by flotation using structurally modified collectors [C]//Proceedings of the XVIIth International Mineral Processing Congress. Bergakademie, Freiberg, 1991: 379–391.Google Scholar
  10. [10]
    YANG Chang, XIA Gang, PAN Yu, ZHANG Ting, DING Yi, WU Yuan. Phosphate flotation with modified fatty acid [J]. Journal of Wuhan Institute of Technology, 2014, 36(4): 22–26. (in Chinese)Google Scholar
  11. [11]
    VIDYADHAR A, KUMARI N, BHAGAT R P. Adsorption mechanism of mixed collector systems on hematite flotation [J]. Minerals Engineering, 2012, 26(1): 102–104.CrossRefGoogle Scholar
  12. [12]
    BU Yong, LIU Run, SUN Wei, HU Yue. Synergistic mechanism between SDBS and oleic acid in anionic flotation of rhodochrosite [J]. International Journal of Minerals, Metallurgy and Materials, 2015, 22(5): 447–452.CrossRefGoogle Scholar
  13. [13]
    JIANG Xiao, WANG Yun, XU Hong, WANG Jian. Effects of non-ionic surfactant on the deep temperature flotation agents of hematite [J]. Advanced Materials Research, 2012, 538–541: 2354–2357.CrossRefGoogle Scholar
  14. [14]
    ZHU Hai, QIN Wen, CHEN Chen, LIU Rui. Interactions between sodium oleate and polyoxyethylene ether and the application in the low-temperature flotation of scheelite at 283 K [J]. Journal of Surfactants and Detergents, 2016, 19(6): 1–7.CrossRefGoogle Scholar
  15. [15]
    WANG Wei, LIANG Bing, ZHANG Jin. Experimental study on low temperature flotation recovery of apatite from a magnetic tailings [J]. Applied Mechanics and Materials, 2014, 522–524: 1501–1504.Google Scholar
  16. [16]
    LI Dong, ZHANG Yang. Mechanism research of mixed collector adsorption on middle-low grade phosphorite ore surface at low temperature [J]. Journal of Wuhan Institue of Technology, 2011, 33(3): 16–19. (in Chinese)Google Scholar
  17. [17]
    ZHANG Rui, SOMASUNDARAN P. Advances in adsorption of surfactants and their mixtures at solid/solution interfaces [J]. Advances in Colloid and Interface Science, 2016, 123(21): 213–229.CrossRefGoogle Scholar
  18. [18]
    FILIPPOVA I V, FILIPPOV L O, DUVERGER A, SEVEROV V V. Synergetic effect of a mixture of anionic and nonionic reagents: Ca mineral contrast separation by flotation at neutral pH [J]. Minerals Engineering, 2014, 66–68: 135–144.CrossRefGoogle Scholar
  19. [19]
    CAO Qin, CHENG Jin, WEN Shu, LI Cheng, LIU Jian. Synergistic effect of dodecyl sulfonate on apatite flotation with fatty acid collector [J]. Separation Science and Technology, 2016, 51(8): 1389–1396.CrossRefGoogle Scholar
  20. [20]
    GAO Yue, GAO Zhi, SUN Wei, HU Yue. Selective flotation of scheelite from calcite: A novel reagent scheme [J]. International Journal of Mineral Processing, 2016, 154(2): 10–15.CrossRefGoogle Scholar
  21. [21]
    XU Long, HU Yue, TIAN Jia, WANG Zhen. Synergistic effect of mixed cationic/anionic collectors on flotation and adsorption of muscovite [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2016, 492: 181–189.CrossRefGoogle Scholar
  22. [22]
    HELBIG C, BALDAUF H, MAHNKE J, STOCKELHUBER K W, SCHULZE H J. Investigation of Langmuir monofilms and flotation experiments with anionic/cationic collector mixtures [J]. International Journal of Mineral Processing, 1998, 53(3): 135–144.CrossRefGoogle Scholar
  23. [23]
    BERTHOD A, TOMER S, DORSEY J G. Polyoxyethylene alkyl ether nonionic surfactants: Physicochemical properties and use for cholesterol determination in food [J]. Talanta, 2001, 55(1): 69–83.CrossRefGoogle Scholar
  24. [24]
    THEANDER K, PUGH R J. Synergism and foaming properties in mixed nonionic/fatty acid soap surfactant systems [J]. Journal of Colloid and Interface Science, 2003, 267(1): 9–17.CrossRefGoogle Scholar
  25. [25]
    JOSHI T, MATA J, BAHADUR P. Micellization and interaction of anionic and nonionic mixed surfactant systems in water [J]. Colloids Surface A: Physicochemical Engineering Aspects, 2005, 260(1–3): 209–215.CrossRefGoogle Scholar
  26. [26]
    ZHU Hai, QIN Wen, CHEN Chen, LIU Rui. Low-temperature collecting performance of mixed anionicnonionic surfactants for scheelite flotation and its application [J]. The Chinese Journal of Nonferrous Metals, 2016, 26(10): 2188–2196. (in Chinese)Google Scholar
  27. [27]
    CHEN Yi. The Ca2+-tolerant mechanism of anionic-nonionic surfactant [D]. Jinan:Shandong University, 2014. (in Chinese)Google Scholar
  28. [28]
    GAO Zhi, BAI Ding, SUN Wei, CAO Xue, HU Yue. Selective flotation of scheelite from calcite and fluorite using a collector mixture [J]. Minerals Engineering, 2015, 72: 23–26.CrossRefGoogle Scholar
  29. [29]
    HU Yue, XU Zheng. Interaction of amphoteric amino phosphpric acids with calcium-containing minerals and selective flotation [J]. International Journal of Mineral Processing, 2003, 72(1): 87–94.CrossRefGoogle Scholar
  30. [30]
    RAO K H, FORSSBERG E. Mechanism of fatty acid adsorption in salt-type mineral flotation [J]. Minerals Engineering, 1991, 4(7–11): 879–890.Google Scholar
  31. [31]
    YIN Wan, WANG Ji, SUN Zhong. Structure–ctivity relationship and mechanisms of reagents used in scheelite flotation [J]. Rare Metals, 2015, 34(12): 882–887.CrossRefGoogle Scholar
  32. [32]
    FENG Bo, LUO Xian, WANG Jin, WANG Peng. The flotation separation of scheelite from calcite using acidified sodium silicate as depressant [J]. Minerals Engineering, 2015, 80: 45–49.CrossRefGoogle Scholar
  33. [33]
    HU Yue, GAO Zhi, SUN Wei. Anisotropic surface energies and adsorption behaviors of scheelite crystal [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012, 415(48): 439–448.CrossRefGoogle Scholar
  34. [34]
    BUSSCHER H J, VAN PELT A W J, DE BOER P, DE JONG H P, ARENDS J. The effect of surface roughening of polymers on measured contact angles of liquids [J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1984, 9(4): 319–331.CrossRefGoogle Scholar
  35. [35]
    LU Y Q, LIU N, WANG X, MILLER J D. Improved phosphate flotation with nonionic polymers [C]//Beneficiation of Phosphates: Advances in Research and Practice. SME, 1999: 3–19.Google Scholar
  36. [36]
    BAUSER H, HELLWIG G. Electron spectroscopy for chemical analysis [M]. Netherlands: Springer, 1993.Google Scholar

Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Mineral Processing and BioengineeringCentral South UniversityChangshaChina
  2. 2.School of Metallurgy and EnvironmentCentral South UniversityChangshaChina

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