マイクロ波水熱処理にによるフライアッシュからのフィリップサイト合成における海水の利用

財団法人ソルト・サイエンス研究財団助成研究報告集 Volume 2006年度 Page 151-159 published_at 2008-03
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Title ( jpn )
マイクロ波水熱処理にによるフライアッシュからのフィリップサイト合成における海水の利用
Title ( eng )
Phillipsite Synthesis from Fly Ash by Hydrothermal Treatment with Microwave Heating and Seawater
Creator
Source Title
財団法人ソルト・サイエンス研究財団助成研究報告集
Volume 2006年度
Start Page 151
End Page 159
Abstract
The coal fly ash was treated hydrothermally at 373K with mixture of NaOH and NaC1 aqueous solution by the microwave heating and the conventional heating. Through this experiment, we investigated effects of additive NaC1 on the crystalline phase and the generation rate of zeolites.
As a result, it was found that phillipsite can be selectively acquired from fly ash by hydrothermal treatment with the mixed solution of 0.4 N NaOH and 1.6 N NaC1 aqueous solution. It was also clarified that both hydroxysodalite and phillipsite are synthesized when fly ash is treated hydrothermally with high concentration NaOH solution and NaC1 solution by the microwave heating.
On the other hand, concerning the generation rate, the synthesis of phillipsite with mixture of NaOH and NaC1 aqueous solution need the longer treatment time than that with NaOH solution. Because the dissolution rate of Al source from fly ash induces the generation rate of the precursor, the aluminosilicate gel. Furthermore, we revealed that the microwave heating reduces the necessary treatment time in the case of the hydrothermal treatment with mixture of NaOH and NaC1 aqueous solution since the microwave heating promotes the crystallization of phhilipste.
Descriptions
ソルト・サイエンス研究財団一般公募助成研究
研究期間: 2006年度
助成番号: 0613
NDC
Chemistry [ 430 ]
Language
jpn
Resource Type research report
Publisher
ソルト・サイエンス研究財団
Date of Issued 2008-03
Rights
Copyright (c) by Author
Publish Type Version of Record
Access Rights open access
Source Identifier
[NCID] AA11508498