Phosphate sorption on the clay fraction of Kanuma pumice.

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The phosphate sorption product on the clay fraction of Kanuma pumice (KP clay) after air-drying was revealed to be a material close to noncrystalline aluminum phosphate by infrared absorption (IR) spectroscopy. The IR spectrum of phosphate sorbed, obtained by subtracting the diffuse reflectance IR spectrum of KP clay from that of the phosphated KP clay, was close to that of noncrystalline aluminum phosphate. During the phosphate sorption reaction on KP clay, the amount of Cl-sorption and the concentration of dissolved Al at the initial pH of 4.0 decreased with phosphate sorption. The amount of silicon released, that of Na+ sorption and pH value increased with phosphate sorption. It was concluded that a part of KP clay, a short range order aluminosilicate, was converted to a material close to noncrystalline aluminum phosphate through phosphate sorption and release of silicon.

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詳細情報

  • CRID
    1390282679087802112
  • NII論文ID
    110003709503
  • NII書誌ID
    AA00607148
  • DOI
    10.11362/jcssjclayscience1960.7.89
  • ISSN
    21863555
    00098574
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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