Effect of organic diacid carbon chain length on crystal morphology of α-calcium sulfate hemihydrate in preparation from flue gas desulphurization gypsum

被引：2

作者：

Liu, Xianfeng ^{[1
]}

Peng, Jiahui ^{[1
]}

Zhang, Jianxin ^{[1
]}

Qu, Jindong ^{[1
]}

Li, Mei ^{[1
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400045, Peoples R China

来源：

SUSTAINABLE DEVELOPMENT OF URBAN INFRASTRUCTURE, PTS 1-3 | 2013年 / 253-255卷

关键词：

flue gas desulphurization gypsum; alpha-calcium sulfate hemihydrate; high strength gypsum; salt solution method at atmospheric pressure; crystal modifier; FGD GYPSUM; TRANSFORMATION;

D O I：

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

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Modifying crystal morphology was the key technology of the preparation of a-calcium sulfate hemihydrate from flue gas desulphurization gypsum using the hydrothermal method under atmospheric pressure. For exploring crystal modifier, the crystal morphology of alpha-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.

引用

页码：542 / 545

页数：4

共 46 条

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