アスベストによる二酸化炭素の固定とその反応生成物 Fixation of Carbon Dioxide with Asbestos and Its Reaction Products

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Reactions between asbestos dispersed in water and carbon dioxide were carried out at 30 to 80°C at atmospheric pressure. The reactions proceeded rapidly within 20 min and thereafter remained almost constant irrespective of reaction time. One of the reaction products was MgCO<SUB>3</SUB>·5H<SUB>2</SUB>O. The others were silica, which were divided into three types. They were films, spherical particles, and agglomerated thin plates depending on the preparation conditions. The asbestos annealed at 100 to 600°C showed increased reactivity with carbon dioxide as an increasing temperature, but on the contrary the asbestos annealed at higher temperature than 650°C decreased the reactivity with temperature. The reaction mechanism of asbestos with carbon dioxide and the formation mechanism of spherical silica from Si (OH) <SUB>4</SUB> solution were briefly discussed.

収録刊行物

  • 無機マテリアル : セッコウ・石灰・セメント・地球環境の科学 = Inorganic materials  

    無機マテリアル : セッコウ・石灰・セメント・地球環境の科学 = Inorganic materials 5(275), 328-332, 1998-07 

    The Society of Inorganic Materials, Japan

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各種コード

  • NII論文ID(NAID)
    10002124444
  • NII書誌ID(NCID)
    AN10455831
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13407899
  • NDL 記事登録ID
    4497824
  • NDL 雑誌分類
    ZP9(科学技術--化学・化学工業--無機化学・無機化学工業--セラミックス・窯業)
  • NDL 請求記号
    Z17-B79
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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