SEM-EDX and Equilibrium Study of Modified Bentonite in Silicate Adsorption

DOI PDF 参考文献8件
  • Tao Lin
    College of Light Industry and Energy, Shaanxi University of Science and Technology
  • Xue Li
    College of Light Industry and Energy, Shaanxi University of Science and Technology
  • Yongjian Xu
    College of Light Industry and Energy, Shaanxi University of Science and Technology
  • Xuefeng Yin
    College of Light Industry and Energy, Shaanxi University of Science and Technology
  • Dingjun Zhang
    Guizhou Chitianhua Papermaking Company Limited
  • Zhenfeng Zhu
    Post-doctoral Research Center of Materials Science and Engineering, Shaanxi University of Science and Technology

抄録

<jats:title>Abstract</jats:title> <jats:p>The adsorption of silicate on aluminum-salt-modified bentonite is described on the basis of SEM-EDX and equilibrium data. The SEM-EDX study showed that silicate was clearly absorbed by the modified bentonite; the EDX data could present the adsorption rate. It results from the adsorption kinetics, according to which the adsorption reaction is second order with respect to silicate concentration, with the second-order rate constant k = 0.005600 mg g−1 min−1. Finally, the maximum adsorption capacity of the modified bentonite is 454.545 mg g−1 in green liquor. It is an efficient and potential adsorbent for silicate adsorption, which can solve the energy-consumption problems of the equipment and recovery of green liquor.</jats:p>

収録刊行物

  • Chemistry Letters

    Chemistry Letters 43 (5), 589-591, 2014-01-10

    Oxford University Press (OUP)

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