Advertisement

Preparation of hydro-sodalite from fly ash using a hydrothermal method with a submolten salt system and study of the phase transition process

  • Yan-bing Zong
  • Cheng-yu ZhaoEmail author
  • Wen-hui Chen
  • Zhao-bo Liu
  • Da-qiang Cang
Article
  • 4 Downloads

Abstract

Hydro-sodalites are zeolitic materials with a wide variety of applications. Fly ash is an abundant industrial solid waste, rich in silicon and aluminum, from which hydro-sodalite can be synthesized. However, traditional hydrothermal synthesis methods are complex and cannot produce high-purity products. Therefore, there is a demand for processing routes to obtain high-purity hydro-sodalites. In the present study, high-purity hydro-sodalite (90.2wt%) was prepared from fly ash by applying a hydrothermal method to a submolten salt system. Samples were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetry and differential thermal analysis (TG-DTA), and Fourier transform infrared spectroscopy (FUR) to confirm and quantify conversion of the raw material into the product phase. Purity of the samples prepared with an H2O/NaOH mass ratio of 1.5 and an H2O/fly ash mass ratio of 10 was calculated and the conversion process of the product phase was studied. Crystallinity of the product was influenced more by the NaOH concentration, less by the H2O/fly ash mass ratio. The main reaction process of the system is that the \({\rm{SiO}}_3^{2-}\) ions produced by dissolution of the vitreous body in the fly ash and Na+ ions in the solution reacted on the destroyed mullite skeleton to produce hydro-sodalite. This processing route could help mitigate processing difficulties, while producing high-purity hydro-sodalite from fly ash.

Keywords

fly ash submolten salt system hydrothermal method hydro-sodalite 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Notes

Acknowledgements

This research was financially supported by the National Natural Science Foundation of China (No. 51474028), the National Key Research and Development Program of China (No. 2017YFC0210301), and China Postdoctoral Science Foundation (No. 2017M621034), and the Science and Technology Benefiting Citizens Program of Ningbo, China (No. 2015C50058).

References

  1. [1]
    Y.T. Xu, B. Yang, X.M. Liu, S.G.D.S. Li, E. Mukiza, and H.J. Li, Investigation of the medium calcium based non-burnt brick made by red mud, Int. J. Miner. Metall. Mater., 26(2019), No. 8, p. 983.CrossRefGoogle Scholar
  2. [2]
    J. Ding, S.H. Ma, S. Shen, Z.L. Xie, S.L. Zheng, and Y. Zhang, Research and industrialization progress of recovering alumina from fly ash: A concise review, Waste Manage., 60(2017), p. 375.CrossRefGoogle Scholar
  3. [3]
    X.L. Guo, X. G, S.J. Xin, and Y. Liu, Zeolite from coal fly ash by hydrothermal synthesis and characterization, Bull. Chin. Ceram. Soc, 35(2016), No. 2, p. 525.Google Scholar
  4. [4]
    X.Y. Liu, Y.G. Liu, and L. Zhang, Progress in synthesis and application of zeolites from coal fly ash, Inorg. Chem. Ind, 42(2010), No. 1, p. 13.Google Scholar
  5. [5]
    D.Z. Shi, J.L. Zhang, C. Zhang, P.F. Li, and R.H. Yuan, Research progress of hydrothermal synthesis of zeolite from fly ash, J. Saf. Environ., 16(2016), No. 3, p. 273.Google Scholar
  6. [6]
    H.L. Wang, Z.H. Xu, D.D. Wu, Q.W. Tan, Y.J. Xie, and C.L. Li, Preparation of artificial zeolite from ash by two-step hydrothermal method, Environ. Prot. Chem. Ind., 33(2013), No. 3, p. 272.Google Scholar
  7. [7]
    L. Wang, G.D. Wang, X.L. Li, and Y. Liu, Synthesis and characterization of Y-type zeolite from coal fly ash by hydrothermal method, Chin. J. Environ. Eng, 12(2018), No. 2, p. 618.Google Scholar
  8. [8]
    J. Benin, S.S. Bukhair, V. Dehnavi, H. Kazemian, and S. Rohani, Using coal fly ash and wastewater for microwave synthesis of LTA zeolite, Chem. Eng. Technol, 37(2014), No. 9, p. 1532.CrossRefGoogle Scholar
  9. [9]
    X.S. Zhao, G.Q. Lu, and H.Y. Zhu, Effects of ageing and seeding on the formation of zeolite Y from coal fly ash, J. Porous Mater, 4(1997), No. 4, p. 245.CrossRefGoogle Scholar
  10. [10]
    H.Y. Dai, Research of influential factor of utilizing flying ash to make molecular sieve, J. Taiyuan Uni., 12(2011), No. 1, p. 120.Google Scholar
  11. [11]
    N. Murayama, H. Yamamoto, and J. Shibata, Mechanism of zeolite synthesis from coal fly ash by alkali hydrothermal reaction, Int. J. Miner. Process., 64(2002), No. 1, p. 1.CrossRefGoogle Scholar
  12. [12]
    L. Wang, G.D. Wang, X.L. Li, and Y. Liu, Synthesis and characterization of Y-type zeolite from coal fly ash by hydrothermal method, Chin. J. Environ. Eng., 37(2018), No. 2, p. 618.Google Scholar
  13. [13]
    C.L. Choi, M. Park, D.H. Lee, I.E. Kim, B.Y. Park, and J. Choi, Salt-thermal zeolitization of fly ash, Environ. Sci. Technol., 35(2001), No. 13, p. 2812.CrossRefGoogle Scholar
  14. [14]
    Y.B. Zhao, Research on mineralogical properties of fly ash, Clean Coal Technol, 21(2015), No. 4, p. 112.Google Scholar
  15. [15]
    P. Chindaprasit and U. Rattanasak, Characterization of the high-calcium fly ash geopolymer mortar with hot-weather curing systems for sustainable application, Adv. Powder Technol., 28(2017), No. 9, p. 2317.CrossRefGoogle Scholar
  16. [16]
    S. Peng, Z.H. Wang, Y. Zheng, L.J. Shi, and M.J. Peng, Quantitative determination of melamine of milk powder by infrared spectroscopy, Food Res. Dev., 36(2015), No. 18, p. 145.Google Scholar
  17. [17]
    L.J. Yu, J.M. Zheng, and W.L. Zhu, Determination of eth-anol in alcohol by fourier transform infrared spectroscopy, Guangzhou Chem. bid., 39(2011), No. 4, p. 112.Google Scholar
  18. [18]
    F.L. Zhang, Fast determination of dimethyl eEther content in liquefied petroleum gas by fourier transform infrared spectrometry method, Low Temp. Specialty Gases, 29(2011), No. 3, p. 26.Google Scholar
  19. [19]
    A. Reheman, J.Y. He, M. Kaiheriman, A. Maimaitinasir, and A. Sidike, Structure characterization and luminescent properties of natural sodalite incorporated with albite, Mater. Prot, 47(2014), No. 1, p. 98.Google Scholar
  20. [20]
    R. Chancey, P. Stutzman, M.G.G. Juenger, and D.W. Fowler, Comprehensive phase characterization of crystalline and amorphous phases of a Class F fly ash, Cem. Concr. Res., 40(2010),No. 1, p. 146.CrossRefGoogle Scholar
  21. [21]
    P.Q. Zhao, X.P. Liu, T.L. de la Torre, L.C. Lu, and K. Sobolev, Assessment of the quantitative accuracy of Rietveld/XRD analysis of crystalline and amorphous phases in fly ash, Anal. Methods, 9(2017), No. 16, p. 2415.CrossRefGoogle Scholar
  22. [22]
    Z.H. Sun, W.J. Bao, H.Q. Li, J.B. Hui, C.H. Wang, and Q. Tang, Mineral phase change of high-alumina fly ash during desilication and extraction of A1203 by alkali dissolution process, Chin. J. ProcessEng., 13(2013), No. 3, p. 403.Google Scholar
  23. [23]
    J.D. Monzon, A.M. Pereyra, M.S. Conconi, and E.I. Bas-aldella, Phase transformations during the zeolitization of fly ashes, J. Environ. Chem. Eng., 5(2017), No. 2, p. 1548.CrossRefGoogle Scholar
  24. [24]
    C.L. Bo, S.L. Zheng, S.H. Ma, and H. Xie, Leaching behaviors of aluminum and silicon compounds in aluminum-rich fly ash in dilute alkaline solution, Chin. J. Process Eng., 12(2012), No. 4, p. 613.Google Scholar
  25. [25]
    Y.C. Ma, S.J. Wang, Y. Song, Y.P. Xu, Z.J. Tian, J.Y. Yu, and L.W. Lin, Ionothermal synthesis of sodalite microspheres, Chin. J. Inorg. Chem., 26(2010), No. 11, p. 1923.Google Scholar
  26. [26]
    H.Q. Li, D.H. Xu, C.H. Wang, J.B. Hui, W.J. Bao, and Z.H. Sun, Technical study of leaching alumina from high-alumina coal fly ash by pre-desilication two-step alkali hydro-thermal process, Light Met, (2016), No. 12, p. 5.Google Scholar
  27. [27]
    S.Y. He, H.Q. Li, S.P. Li, Y.H. Li, and Q. Xie, Kinetics of desilication process of fly ash with high aluminum from pulverized coal fired boiler in alkali solution, Chin. J. Non-ferrous Met, 24(2014), No. 7, p. 1888.Google Scholar

Copyright information

© University of Science and Technology Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2020

Authors and Affiliations

  • Yan-bing Zong
    • 1
  • Cheng-yu Zhao
    • 1
    Email author
  • Wen-hui Chen
    • 1
  • Zhao-bo Liu
    • 1
    • 2
  • Da-qiang Cang
    • 1
  1. 1.School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.China Nonferrous Engineering and Research Institute (China ENFI Engineering Corporation)BeijingChina

Personalised recommendations