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Utilization of NaCl for phillipsite synthesis from fly ash by hydrothermal treatment with microwave heating

https://hiroshima.repo.nii.ac.jp/records/2006167
https://hiroshima.repo.nii.ac.jp/records/2006167
8a1fa169-36d2-42ca-ab16-5408bca53cd5
名前 / ファイル ライセンス アクション
APT_20_35.pdf APT_20_35.pdf (165.6 KB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Utilization of NaCl for phillipsite synthesis from fly ash by hydrothermal treatment with microwave heating
言語 en
作成者 Fukui, Kunihiro

× Fukui, Kunihiro

en Fukui, Kunihiro

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Katoh, Manabu

× Katoh, Manabu

en Katoh, Manabu

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Yamamoto, Tetsuya

× Yamamoto, Tetsuya

en Yamamoto, Tetsuya

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Yoshida, Hideto

× Yoshida, Hideto

en Yoshida, Hideto

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 Copyright (c) 2008 The Society of Powder Technology Japan. Published by Elsevier BV and The Society of Powder Technology Japan. Published by Elsevier B.V.
主題
主題Scheme Other
主題 Fly ash
主題
主題Scheme Other
主題 Microwave
主題
主題Scheme Other
主題 Phillipsite
主題
主題Scheme Other
主題 Sodium chloride
主題
主題Scheme Other
主題 Hydrothermal treatment
主題
主題Scheme NDC
主題 570
内容記述
内容記述 The coal fly ash was treated hydrothermally with the mixture of NaOH aqueous solution and NaCl aqueous solution at 373 K, using the microwave heating and the conventional heating in order to clarify influences of the NaCl concentration in the hydrothermal solution on the growth rate and the crystalline phase of synthesized zeolites. As a result, it was found that phillipsite crystallinity of product powder increases with the additive NaCl concentration in the hydrothermal solution when the concentration of NaOH is so low as not to generate the zeolite from fly ash. On the other hand, in case that NaOH concentration is relatively high, the addition of NaCl to the hydrothermal solution using the conventional heating hardly affects phillipsite crystallinity of product powder; however, the generation of hydroxysodalite is enhanced by the microwave heating. Moreover, it was revealed that the necessary treatment time to complete the crystallization of phillipsite increases with increasing concentration of NaCl in the hydrothermal solution. This is because the substitution of NaCl for NaOH reduces the dissolution rate of aluminate and silicate ions from fly ash and the generation rate of the precursor aluminosilicate gel. However, this delay of the completion of the crystallization can be shortened by the microwave heating method. These experimental results concluded that the utilization of NaCl for the hydrothermal solution is effective in phillipsite synthesis from fly ash only when the NaOH concentration is relatively low in the hydrothermal solution and especially, when the microwave heating is used.
言語 en
出版者
出版者 Brill Academic Publishers
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 journal article
出版タイプ
出版タイプ AO
出版タイプResource http://purl.org/coar/version/c_b1a7d7d4d402bcce
関連情報
識別子タイプ DOI
関連識別子 10.1016/j.apt.2008.10.007
関連情報
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1016/j.apt.2008.10.007
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0921-8831
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AA1074214X
開始ページ
開始ページ 35
書誌情報 Advanced Powder Technology
Advanced Powder Technology

巻 20, 号 1, p. 35-40, 発行日 2009
旧ID 27707
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