Influence of mole ratio of calcium to magnesium on carbonation properties of calcium hydroxide

被引：0
|
作者：
Cao, Mingli [1 ]
Li, Yong [1 ]
Chang, Jun [1 ]
Fang, Yanfeng [1 ]
机构：
[1] School of Civil Engineering, Dalian University of Technology, Dalian 116024, Liaoning
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2013年 / 41卷 / 06期
关键词：
Calcium hydroxide; Magnesium hydroxide; Mass gain rate; Mole ratio of calcium to magnesium; Solid carbonation;
D O I：
10.7521/j.issn.0454-5648.2013.06.19
中图分类号：
学科分类号：
摘要：
To facilitate carbonation efficiency, the effect of different mole ratio of Ca to Mg (Mr) on the carbonation of calcium hydroxide and magnesium hydroxide mixtures were investigated using a solid carbonation method. The conditions of carbonation are as follows: the mass fraction of CO2, gas pressure, liquid to solid ratio and the carbonation time were 99.9%, 0.3 MPa, 0.10 and 2.0 h, respectively. The results showed that mass gain rate reached the maximum value (23.75%) when Mr was 5. The carbonated products became smaller and looser and the degree of carbonation was improved when magnesium hydroxide was added. The degree of carbonation of magnesium hydroxide lower calcium hydroxide at the above mentioned conditions.
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页码：831 / 835
页数：4
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