A Novel Technique of Flyash Utilization: Preparation of Silica from Flyash by Alkali Leaching

Abstract:

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A new technique of flyash utilization was presented and high-purity silica was prepared by alkali leaching. The flyash was added into sodium hydroxide solution, and then the suspension was heated to 115 °C for 30 min. After filtrated, the filtrate was collected and carbon dioxide was imported into the solution. Finally, the silica would precipitate from the solution. The silica was characterized by scanning electron microscopy, X-ray diffraction and X-ray fluorescence spectrometer. The high-purity silica prepared from flyash was qualified for the rubber reinforcing agent used in shoemaking.

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Edited by:

Wei Pan and Jianghong Gong

Pages:

814-815

DOI:

10.4028/www.scientific.net/KEM.434-435.814

Citation:

A. R. Guo et al., "A Novel Technique of Flyash Utilization: Preparation of Silica from Flyash by Alkali Leaching", Key Engineering Materials, Vols. 434-435, pp. 814-815, 2010

Online since:

March 2010

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Price:

$35.00

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