Zeolite Synthesised from Fused Coal Fly Ash at Low Temperature Using Seawater for Crystallization

Authors

Claudia Belviso, Laboratory of Environmental and Medical Geology, IMAA–CNR, Tito Scalo (PZ), 85050, Italy
Francesco Cavalcante, Laboratory of Environmental and Medical Geology, IMAA–CNR, Tito Scalo (PZ), 85050, Italy
Antonio Lettino, Laboratory of Environmental and Medical Geology, IMAA–CNR, Tito Scalo (PZ), 85050, Italy
Saverio Fiore, Laboratory of Environmental and Medical Geology, IMAA–CNR, Tito Scalo (PZ), 85050, Italy

Document Type

Article

Abstract

A sample of coal fly ash from an Italian thermoelectric power plant was used in order to synthesize zeolite by hydrothermal activation after a pre-treatment fusion with NaOH. The experiments involved were performed at different temperatures of crystallization, ranging from 35 up to 60uC, with seawater and distilled water, separately, during hydrothermal process. A comparison between the results obtained from the use of the different kinds of water showed that at low temperature (35–40 uC) the synthesis yield of zeolite X is higher using seawater as crystallizing agent than using distilled water. This implies a possible application for seawater in the solution to the problem of high water volume involved in the zeolite synthesis on a pilot plant scale.

First Page

7

Last Page

13

DOI

https://doi.org/10.4177/CCGP-D-09-00004.1

Volume

1

Publication Date

1-1-2010

Recommended Citation

Belviso, C., Cavalcante, F., Lettino, A., Fiore, S., 2009, Zeolite Synthesised from Fused Coal Fly Ash at Low Temperature Using Seawater for Crystallization. Coal Combustion and Gasification Products 1, 8-13, doi: 10.4177/CCGP-D-09-00004.1