Synthesis of zeolites from coal fly ash using mine waters
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Date
2013
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
In this study mine waters obtained from coal mining operations in South Africa were used as a substitute for pure water during the synthesis of zeolites from South African coal fly ash. Procedures that had been optimized to produce single phase zeolite Na-P1 and X using pure water were employed independently. The use of circumneutral mine water resulted in similar quality zeolite Na-P1 and X whereas the use of acidic mine drainage led to the formation of a single phase hydroxysodalite zeolite. Since these two wastes (fly ash and mine waters) are found in close proximity to each other, this study demonstrates that they can be used to ameliorate each other and at the same time produce saleable zeolitic products that can be used to offset their costs of disposal and treatment.
Description
Keywords
Fly ash, Mine water, Zeolite X, Zeolite Na-P1
Citation
Musyoka, N.M. et al. (2013). Synthesis of zeolites from coal ash using mine waters. Minerals Engineering, 53: 9 – 15