Melting and Dissolving Fly Ash by NaOH for the Removal of Iron, Calcium, and Other Impurities

A mixture of fly ash and sodium hydroxide was calcined, which converted mullite (3Al2O3·2SiO2), the high-temperature stability phase containing silicon and aluminum oxides, and quartz into activated silica alumina phase, and they were dissolved by concentrated NaOH solution into soluble SiO32− and A...

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Bibliographic Details

Main Authors:	Wang, Minghua, Zhao, Hui, Tursun, Gulambar, Yang, Jianwang, Liu, Long
Format:	Book Chapter
Language:	English
Published:	IntechOpen 2020
Subjects:	Physical Sciences, Engineering and Technology
Online Access:	https://www.intechopen.com/chapters/71558
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