Advertisement

Journal of Central South University

, Volume 21, Issue 12, pp 4450–4455 | Cite as

Direct spray pyrolysis of aluminum chloride solution for alumina preparation

  • Guo-zhi Lü (吕国志)
  • Ting-an Zhang (张廷安)Email author
  • Long Wang (王龙)
  • Si-da Ma (马思达)
  • Zhi-he Dou (豆志河)
  • Yan Liu (刘燕)
Article

Abstract

The effects of pyrolysis mode and pyrolysis parameters on Cl content in alumina were investigated, and the alumina products were characterized by XRD, SEM and ASAP. The experimental results indicate that the spray pyrolysis efficiency is higher than that of static pyrolysis process, and the reaction and evaporation process lead to a multi-plot state of the alumina products by spray pyrolysis. Aluminum phase starts to transform into γ-Al2O3 at spray pyrolysis temperature of 600 °C, which is about 200 °C lower than that of static pyrolysis process. The primary particle size of γ-Al2O3 product is 27.62 nm, and Cl content in alumina products is 0.38% at 800 °C for 20 min.

Key words

spray pyrolysis aluminum chloride solution γ-Al2O3 phase transformation 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    WU Cheng-you, YU Hong-fa, ZHANG Hui-fang. Extraction of aluminum by pressure acid-leaching method from coal fly ash [J]. Transaction of Nonferrous Metals Society of China, 2012, 22(9): 2281–2288.MathSciNetGoogle Scholar
  2. [2]
    AHMARUZZAMAN M. A review on the utilization of fly ash [J]. Progress in Energy and Combustion Science, 2010, 36(3): 327–363.CrossRefGoogle Scholar
  3. [3]
    WANG Fu-yuan, WU Yuan-zheng. Fly ash utilization handbook [M]. Beijing: Electric Power Press, 2004: 4–23. (in Chinese)Google Scholar
  4. [4]
    CHEN Wan-kun, PENG Guan-cai. Intensified digestion technology of bauxite [M]. Beijing: Metallurgical Industry Press, 1998: 23-95. (in Chinese)Google Scholar
  5. [5]
    YANG Zhong-yu. Alumina production technology [M]. Beijing: Metallurgical Industry Press, 1998: 112–156. (in Chinese)Google Scholar
  6. [6]
    LI Xin-hua, GU Song-qing, YIN Zhong-lin, WU Guo-bao, ZHAI Yu-chun. Regulating the digestion of high silica bauxite with calcium ferrite addition [J]. Hydrometallurgy, 2010, 104(2): 313–316.CrossRefGoogle Scholar
  7. [7]
    WANG Yi-yong, ZHANG Ting-an, CHEN Xia, BAO Li. Effects of microwave roasting on leaching behavior of diaspore ore [J]. The Chinese Journal of Process Engineering, 2007, 7(2): 317–321. (in Chinese)Google Scholar
  8. [8]
    KAKROUDI M G, FOGAING E Y, GAULT C, HUGER M, CHOTARD T. Effect of thermal treatment on damage mechanical behaviour of refractory castables: Comparison between bauxite and andalusite aggregates [J]. Journal of the European Ceramic Society, 2008, 28(13): 2471–2478.CrossRefGoogle Scholar
  9. [9]
    ALEX T C, KUMAR R, ROY S K, MEHROTRA S P. Stirred bead mill grinding of gibbsite: surface and morphological changes [J]. Advanced Powder Technology, 2008, 19(5): 483–491.CrossRefGoogle Scholar
  10. [10]
    GRZYMEK J, DERDAKA W A. Method for obtaining aluminum oxide, US 4149898 [P]. 1979-02-21.Google Scholar
  11. [11]
    QIN Jian-guo. A technique of preparing silicon oxide and alumina with fly ash, CN 200710061662.X [P]. 2007-04-03. (in Chinese)Google Scholar
  12. [12]
    SEIDEL A, ZEMMLES Y. Mechanism and kinetics of aluminum and iron leaching from coal fly ash by sulfuric acid [J]. Chemical Engineering Science, 1998, 53(22): 3835–3852.CrossRefGoogle Scholar
  13. [13]
    SEIDEL A, SLUSZNY A, SHELEF G, ZIMMELS Y. Self inhibition of aluminum leaching from coal fly ash by sulfuric acid [J]. Chemical Engineering Science, 1999, 72(3): 195–207.CrossRefGoogle Scholar
  14. [14]
    KELMERS A D, CANON R M, EGAN B Z, FLEKER L K. Chemistry of the direct acid leach, calsinter, and pressure digestion-acid leach methods for recovery of aluminum from fly-ash [J]. Resources and Conservation, 1982, 9(1/2/3/4): 271–279.CrossRefGoogle Scholar
  15. [15]
    SHAMALA K S, MURTHY L C S, RAO K N. Studies on optical and electrical properties of Al2O3 thin films prepared by spray pyrolysis and electron beam evaporation [J]. Materials Science and Engineering B, 2004, 106(3): 269–274.CrossRefGoogle Scholar
  16. [16]
    AUGILAR-FRUIT M, GARCIA M, FALCONY C. Optical and electrical properties of aluminum oxide thin films prepared by spray pyrolysis [J]. Applied Physics Letters, 1998, 72(2/3): 1700–1706.CrossRefGoogle Scholar
  17. [17]
    NASUTION I, VELASCO A, KIM H J. Atmospheric pressure chemical vapor deposition mechanism of Al2O3 film from AlCl3 and O2 [J]. Journal of Crystal Growth, 2009, 311(2): 429–434.CrossRefGoogle Scholar
  18. [18]
    OKADA K, NAGASHIMA T, KAMESHIMA Y, YASUMORI A. Effect of crystallize size of boehmite on sinterability of alumina ceramics [J]. Ceramics International, 2003, 29(5): 533–537.CrossRefGoogle Scholar
  19. [19]
    PARK T, LIM J S, LEE Y, KIM S. Catalytic supercritical water oxidation of waste water from terephthalic acid manufacturing process [J]. The Journal of Supercritical Fluids, 2003, 26(3): 201–213.CrossRefGoogle Scholar
  20. [20]
    HELLGARDT K, CHADWICK D. Effect of pH of precipitation on the preparation of high surface area alumina from nitrate solutions [J]. Industrial and Engineering Chemistry Research, 1998, 37(2): 405–411.CrossRefGoogle Scholar
  21. [21]
    NOGUCHI T, MATSUI K, ISLAM N M, HAKUTA Y, HAYASHI H. Rapid synthesis of γ-Al2O3 nanoparticles in supercritical water by continuous hydrothermal flow reaction system [J]. The Journal of Supercritical Fluids, 2008, 46(2): 129–136.CrossRefGoogle Scholar
  22. [22]
    ZHANG Qing-hong, GAO Lian, GUO Jing-kun. Effects of sulfate ions and hydrolytic temperature on the properties of TiC14-derived nanostructured TiO2 [J]. Journal of Inorganic Materials, 2000, 15(6): 992–997. (in Chinese)Google Scholar
  23. [23]
    QI Hong. Preparation of composite microporous silica membranes using TEOS and 1, 2-bis(triethoxysilyl) ethane as precursors for gas separation [J]. Chinese Journal of Chemical Engineering, 2011, 19(3): 404–409.CrossRefGoogle Scholar

Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Guo-zhi Lü (吕国志)
    • 1
  • Ting-an Zhang (张廷安)
    • 1
    Email author
  • Long Wang (王龙)
    • 1
  • Si-da Ma (马思达)
    • 1
  • Zhi-he Dou (豆志河)
    • 1
  • Yan Liu (刘燕)
    • 1
  1. 1.Key Laboratory of Ecological Utilization of Multi-metal Intergrown Ore of Ministry of Education, School of Materials and MetallurgyNortheastern UniversityShenyangChina

Personalised recommendations