Effect of Organic Diacid Carbon Chain Length on Crystal Morphology of α-Calcium Sulfate Hemihydrate in Preparation from Flue Gas Desulphurization Gypsum

Xian Feng Liu; Jia Hui Peng; Jian Xin Zhang; Jin Dong Qu; Mei Li

doi:10.4028/www.scientific.net/AMM.253-255.542

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 253-255Effect of Organic Diacid Carbon Chain Length on...

Effect of Organic Diacid Carbon Chain Length on Crystal Morphology of α-Calcium Sulfate Hemihydrate in Preparation from Flue Gas Desulphurization Gypsum

Abstract:

Modifying crystal morphology was the key technology of the preparation of α-calcium sulfate hemihydrate from flue gas desulphurization gypsum using the hydrothermal method under atmospheric pressure. For exploring crystal modifier, the crystal morphology of α-calcium sulfate hemihydrate in preparation from flue gas desulphurization gypsum with various organic diacid was studied, by polarizing microscope profile observation. The results showed, When the space between two carboxyls was triplicate length of C-C, the organic diacid had the best effect of modifying crystal morphology.

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Periodical:

Applied Mechanics and Materials (Volumes 253-255)

Pages:

542-545

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.253-255.542

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Online since:

December 2012

Authors:

Xian Feng Liu, Jia Hui Peng, Jian Xin Zhang, Jin Dong Qu, Mei Li

Keywords:

Crystal Modifier, Flue Gas Desulphurization Gypsum, High Strength Gypsum, Salt Solution Method at Atmospheric Pressure, α-Calcium Sulfate Hemihydrate

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