Conversion of Waste Sandstone Cake into Crystalline Zeolite X Using Alkali Fusion

DOI Web Site Web Site 被引用文献4件 参考文献27件
  • Wajima Takaaki
    Department of Materials-Process Engineering & Applied Chemistry for Environments, Akita University
  • Munakata Kenzo
    Department of Materials-Process Engineering & Applied Chemistry for Environments, Akita University
  • Ikegami Yasuyuki
    Institute of Ocean Energy, Saga University

この論文をさがす

抄録

Waste sandstone cake, which is discharged as industrial waste, was converted into crystalline zeolite-X using alkali fusion. The cake was transformed into a soluble phase via alkali fusion, and then agitated in distilled water at room temperature to give an intermediate solid, followed by synthesis at 80°C to give the final product. The effects of the agitation and synthesis times on the product phase were investigated with a view to obtaining a single crystalline zeolite-X. Hydroxysodalite was synthesized from the intermediate solid obtained without agitation, and with increasing agitation times for the intermediate solid, the amount of zeolite-X in the product increased, because of the increased Si content in the intermediate solid and the decrease of interference from impurities in the synthesis of zeolite crystals. The observed concentrations of Si and Al in the solution during the reaction explain the crystallization of the zeolite phase. The equilibrium adsorption capacity of the product for Sr2+ was almost the same as that of commercial zeolite-X in a low concentration Sr2+ solution, and the maximum adsorption capacity of the product, calculated using the Langmuir isotherm model, was 0.46 mmol/g.

収録刊行物

被引用文献 (4)*注記

もっと見る

参考文献 (27)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ