留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 25 Issue 12
Dec.  2018
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  610
  • HTML全文浏览量:  124
  • PDF下载量:  35
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2018  >  25(12): 1380-1388
Bo-na Deng, Guang-hui Li, Jun Luo, Jing-hua Zeng, Ming-jun Rao, Zhi-wei Peng, and Tao Jiang, Alkaline digestion behavior and alumina extraction from sodium aluminosilicate generated in pyrometallurgical process, Int. J. Miner. Metall. Mater., 25(2018), No. 12, pp. 1380-1388. https://doi.org/10.1007/s12613-018-1692-6
Cite this article as:
Bo-na Deng, Guang-hui Li, Jun Luo, Jing-hua Zeng, Ming-jun Rao, Zhi-wei Peng, and Tao Jiang, Alkaline digestion behavior and alumina extraction from sodium aluminosilicate generated in pyrometallurgical process, Int. J. Miner. Metall. Mater., 25(2018), No. 12, pp. 1380-1388. https://doi.org/10.1007/s12613-018-1692-6
shu
引用本文 PDF XML SpringerLink
研究论文

Alkaline digestion behavior and alumina extraction from sodium aluminosilicate generated in pyrometallurgical process

  • School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China

  • 通讯作者:

    Guang-hui Li    E-mail: liguangh@csu.edu.cn

    Jun Luo    E-mail: luojun2013@csu.edu.cn

  • In pyrometallurgical process, Al-and Si-bearing minerals in iron and aluminum ores are easily transformed into sodium aluminosilicates in the presence of Na2O constituents, which alters the leaching behaviors of Al2O3 and SiO2. It was confirmed that sodium aluminosilicates with different phase compositions synthesized at various roasting conditions were effectively digested in the alkaline digestion process. Under the optimum conditions at temperature of 100-120℃, liquid-to-solid ratio (L/S) of 10:2 mL/g, caustic ratio of 4, and Na2O concentration of 240 g/L, the actual and relative digestion ratio of Al2O3 from the synthesized sodium aluminosilicates reached maximums of about 65% and 95%, respectively, while SiO2 was barely leached out. To validate the superior digestion property of sodium aluminosilicate generated via an actual process, the Bayer digestion of an Al2O3-rich material derived from reductive roasting of bauxite and comprising Na1.75Al1.75Si0.25O4 was conducted; the relative digestion ratio of Al2O3 attained 90% at 200℃.
    • Research Article

    Alkaline digestion behavior and alumina extraction from sodium aluminosilicate generated in pyrometallurgical process

    + Author Affiliations
      Abstract
    • In pyrometallurgical process, Al-and Si-bearing minerals in iron and aluminum ores are easily transformed into sodium aluminosilicates in the presence of Na2O constituents, which alters the leaching behaviors of Al2O3 and SiO2. It was confirmed that sodium aluminosilicates with different phase compositions synthesized at various roasting conditions were effectively digested in the alkaline digestion process. Under the optimum conditions at temperature of 100-120℃, liquid-to-solid ratio (L/S) of 10:2 mL/g, caustic ratio of 4, and Na2O concentration of 240 g/L, the actual and relative digestion ratio of Al2O3 from the synthesized sodium aluminosilicates reached maximums of about 65% and 95%, respectively, while SiO2 was barely leached out. To validate the superior digestion property of sodium aluminosilicate generated via an actual process, the Bayer digestion of an Al2O3-rich material derived from reductive roasting of bauxite and comprising Na1.75Al1.75Si0.25O4 was conducted; the relative digestion ratio of Al2O3 attained 90% at 200℃.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(25)
    • [1]
      C.A. Pickles, T. Lu, B. Chambers, and J. Forster, A study of reduction and magnetic separation of iron from high iron bauxite ore, Can. Metall. Q., 51(2012), No. 4, p. 424.
      [2]
      Y.Y. Zhang, W. Lü, Y.H. Qi, and Z.S. Zou, Recovery of iron and calcium aluminate slag from high-ferrous bauxite by high-temperature reduction and smelting process, Int. J. Miner. Metall. Mater., 23(2016), No. 8, p. 881.
      [3]
      G.H. Li, M.D. Liu, T. Jiang, T.H. Zhou, and X.H. Fan, Mineralogy characteristics and separation of aluminum and iron of high-aluminum iron ores, J. Cent. South. Univ. (Sci. Technol.), 40(2009), No. 5, p. 1165.
      [4]
      X.F. Zhu, T.A Zhang, Y.X. Wang, G.Z Lü, and W.G. Zhang, Recovery of alkali and alumina from Bayer red mud by the calcification-carbonation method, Int. J. Miner. Metall. Mater., 23(2016), No. 3, p. 257.
      [5]
      T. Kinnarinen, L. Holliday, and A. Häkkinen, Dissolution of sodium, aluminum and caustic compounds from bauxite residues, Miner. Eng., 79(2015), p. 143.
      [6]
      B.N. Deng, G.H. Li, J. Luo, Q. Ye, M.X. Liu, Z.W. Peng, and T. Jiang, Enrichment of Sc2O3 and TiO2 from bauxite ore residues, J. Hazard. Mater., 331(2017), p. 71.
      [7]
      B. Sarkar, A. Das, S. Roy, and S.K. Rai, In depth analysis of alumina removal from iron ore fines using teetered bed gravity separator, Miner. Process. Extr. Metall., 117(2008), No. 1, p. 48.
      [8]
      R.C. Chaurasia and S. Nikkam, Beneficiation of low-grade iron ore fines by multi-gravity separator (MGS) using optimization studies, Part. Sci. Technol., 35(2015), No. 1, p. 45.
      [9]
      E. Jamieson, A. Jones, D. Cooling, and N. Stockton, Magnetic separation of Red Sand to produce value, Miner. Eng., 19(2006), No. 15, p. 1603.
      [10]
      Y.H. Guo, J.J. Gao, H.J. Xu, K. Zhao, and X.F. Shi, Nuggets production by direct reduction of high iron red mud, J. Iron. Steel Res. Int., 20(2013), No. 5, p. 24.
      [11]
      X.B. Li, W. Xiao, W. Liu, G.H. Liu, Z.H. Peng, Q.S. Zhou, and T.G. Qi, Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering, Trans. Nonferrous Met. Soc. China, 19(2009), No. 5, p. 1342.
      [12]
      K. Jayasankar, P.K. Ray, A.K. Chaubey, A. Padhi, B.K. Satapathy, and P.S. Mukherjee, Production of pig iron from red mud waste fines using thermal plasma technology, Int. J. Miner. Metall. Mater., 19(2012), No. 8, p. 679.
      [13]
      W.C. Liu, S.Y. Sun, L. Zhang, S. Jahanshahi, and J.K. Yang, Experimental and simulative study on phase transformation in Bayer red mud soda-lime roasting system and recovery of Al, Na and Fe, Miner. Eng., 39(2012), p. 213.
      [14]
      W.J. Bruckard, C.M. Calle, R.H. Davidson, A.M. Glenn, S. Jahanshahi, M.A. Somerville, G.J. Sparrow, and L. Zhang, Smelting of bauxite residue to form a soluble sodium aluminium silicate phase to recover alumina and soda, Miner. Process. Extr. Metall., 119(2010), No. 1, p. 18.
      [15]
      G.H. Li, M.X. Liu, M.J. Rao, T. Jiang, J.Q. Zhuang, and Y.B. Zhang, Stepwise extraction of valuable components from red mud based on reductive roasting with sodium salts, J. Hazard. Mater., 280(2014), p. 774.
      [16]
      T. Jiang, L. Yang, G.H. Li, J. Luo, J.H. Zeng, Z.W. Peng, and M.X. Liu, Separation of aluminum and preparation of powdered DRI from lateritic iron ore based on direct reduction process, Can. Metall. Q., 55(2016), No. 3, p. 345.
      [17]
      G.H. Li, T. Jiang, M.D. Liu, T.H. Zhou, X.H. Fan, and G.Z. Qiu, Beneficiation of high-aluminium-content hematite ore by soda ash roasting, Miner. Process. Extr. Metall. Rev., 31(2010), No. 3, p. 150.
      [18]
      X.B. Li, Y.L. Wang, Q.S. Zhou, T.G. Qi, G.H. Liu, Z.H. Peng, and H.Y. Wang. Transformation of hematite in diasporic bauxite during reductive Bayer digestion and recovery of iron, Trans. Nonferrous Met. Soc. China, 27(2017), No. 12, p. 2715.
      [19]
      F.F. Chen, Y.F. Zhang, X.D. Jiang, S.T. Cao, S.W. You, and Y. Zhang, Structure transformation of sodium aluminosilicates as desilication agents in the desilication of highly alkalinene sodium aluminate solution containing silica, Microporous Mesoporous Mater., 235(2016), p. 224.
      [20]
      B.G. Xu, P. Smith, and L. D. Silva, The Bayer digestion behaviour of transition aluminas formed from roasted gibbsite, Int. J. Miner. Process., 122(2013), p. 22.
      [21]
      B.G. Xu, P. Smith, C. Wingate, and L. D. Silva, The effect of calcium and temperature on the transformation of sodalite to cancrinite in Bayer digestion, Hydrometallurgy, 105(2010), No. 1-2, p. 75.
      [22]
      X.B. Li, S.W. Yu, W.B. Dong, Y.K. Chen, Q.S. Zhou, T.G. Qi, G.H. Liu, Z.H. Peng, and Y.Y. Jiang, Investigating the effect of ferrous ion on the digestion of diasporic bauxite in the Bayer process, Hydrometallurgy, 152(2015), p. 183.
      [23]
      R. Zhang, S.L. Zheng, S.H. Ma, and Y. Zhang, Recovery of alumina and alkali in Bayer red mud by the formation of andradite-grossular hydrogarnet in hydrothermal process, J. Hazard. Mater., 189(2011), No. 3, p. 827.
      [24]
      L. Zhong, Y.F. Zhang, and Y. Zhang, Extraction of alumina and sodium oxide from red mud by a mild hydro-chemical process, J. Hazard. Mater., 172(2009), No. 2-3, p. 1629.
      [25]
      G.H. Li, J. Luo, T. Jiang, Z.X. Li, Z.W. Peng, and Y.B. Zhang, Digestion of alumina from non-magnetic material obtained from magnetic separation of reduced iron-rich diasporic bauxite with sodium salts, Metals, 6(2016), No. 11, p. 294.
      • Relative Articles
      Cited By

    Catalog


    • /

      返回文章
      返回

      版权所有 ©《矿物冶金与材料学报（英文）》编辑部

      地址：北京市海淀区学院路30号邮政编码：100083

      电子邮箱：journal@ustb.edu.cn电话：+86-10-62332875

      本系统由 北京仁和汇智信息技术有限公司 开发    百度统计