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  1. 1100 学部・機構・専門職大学院
  2. 理工系学部
  3. 関西大学工学研究報告 = Technology reports of the Kansai University
  4. 第47号

Hydrothermal synthesis of potassium-type zeolite from coal fly ash and evaluation of its physical properties

http://hdl.handle.net/10112/6406
http://hdl.handle.net/10112/6406
9ee72333-e28a-4ece-b6aa-09d535c23a2c
名前 / ファイル ライセンス アクション
KU-1100-20050000-06.pdf KU-1100-20050000-06.pdf (631.2 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2012-04-13
タイトル
タイトル Hydrothermal synthesis of potassium-type zeolite from coal fly ash and evaluation of its physical properties
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ departmental bulletin paper
著者 Takahashi, Tomoya

× Takahashi, Tomoya

WEKO 28103

Takahashi, Tomoya

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Murayama, Norihiro

× Murayama, Norihiro

WEKO 28104
e-Rad 90340653

Murayama, Norihiro

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Yamamoto, Hideki

× Yamamoto, Hideki

WEKO 28105
e-Rad 30174808

Yamamoto, Hideki

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Shibata, Junji

× Shibata, Junji

WEKO 28106

Shibata, Junji

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著者別名
識別子Scheme WEKO
識別子 28107
姓名 高橋, 智哉
著者別名
識別子Scheme WEKO
識別子 28108
姓名 村山, 憲弘
著者別名
識別子Scheme WEKO
識別子 28109
姓名 山本, 秀樹
著者別名
識別子Scheme WEKO
識別子 28110
姓名 芝田, 隼次
概要
内容記述タイプ Other
内容記述 Hydrothermal syntheses of potassium-type zeolite from coal fly ash were carried
out under various KOH concentrations and reaction temperatures, and crystal
structure and cation exchange capacity (CEC) of the reaction products were investigated. Both acid resistance and heat resistance of the reaction products were considered, as these are important for use as a cation exchanger,a catalyst or an absorbent.
When hydrothermal synthesis from coal fly ash is conducted at a reaction temperature of 393K, potassium chabazite (K-CHA) begins to form for 5h of reaction time. K-CHA and K-H zeolite are formed as zeolite species at 393K and 453K,respectively. Both K-CHA and K-H zeolite are synthesized simultaneously at 433K. CEC values of the obtained K-CHA and K-H zeolite are 208meq/100g and 104meq/
100g. respectively. The CEC of reaction products decreases with increasing reaction
temperature, and this phenomenon dictates the kind of formed zeolite. X-ray diffraction intensities of K-CHA gradually decrease with decreasing pH in the range above pH4. Whereas, in the range below pH 4, this intensity decreases rapidly and the elution amount of Al3+ from K-CHA with proton increases remarkably. In the case of heat treatment below 873K, the X-ray diffraction intensity of K-CHA decreases with increasing calcined temperature, but thermal decomposition of K-CHA and production of new crystalline materials do not take place in these treatments. With a heat treatment of 1273K,the K-CHA peaks disappear in the XRD pattern, and those of leucite generate anew.
書誌情報 関西大学工学研究報告 = Technology reports of the Kansai University

巻 47, p. 11-20, 発行日 2005-03-21
ISSN
収録物識別子タイプ ISSN
収録物識別子 04532198
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AN00046916
著者版フラグ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
出版者
出版者 関西大学工学部
キーワード
主題Scheme Other
主題 hydrothermal synthesis
キーワード
主題Scheme Other
主題 zeolite
キーワード
主題Scheme Other
主題 coal fly ash
キーワード
主題Scheme Other
主題 cation exchange capacity
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Cite as

Takahashi, Tomoya, Murayama, Norihiro, Yamamoto, Hideki, Shibata, Junji, 2005, Hydrothermal synthesis of potassium-type zeolite from coal fly ash and evaluation of its physical properties: 関西大学工学部, 11–20 p.

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