熟石膏陈化过程的研究进展

doi:10.11962/1006-4990.2019-0521

Abstract

Abstract:

The reaction mechanism of AⅢ-CaSO₄ and water vapour and the dehydration mechanism of CaSO₄·2H₂O during ageing process of plaster of paris were investigated.The fundamental of ageing process of plaster of paris was first introduced,then the physical adsorption and chemical adsorption of water vapour on AⅢ-CaSO₄ in the ageing process of plaster of paris were interpreted,and afterwards the dehydration performance and dehydration kinetics of CaSO₄·2H₂O crystal in the ageing process of plaster of paris were described.Finally,the crystal structures of CaSO₄·2H₂O,CaSO₄·0.5H₂O and AⅢ-CaSO₄ were mentioned.

Key words: plaster of paris, ageing process, physical adsorption and chemical adsorption, dehydration performance, dehydration kinetics, crystal structures

CLC Number:

O611

Liu Yuanhui,Tang Xiaona,Xie Lei,Jiang Xiaopeng,Zhang Yunbo. Investigation progress of ageing process of plaster of paris[J]. Inorganic Chemicals Industry, 2020, 52(9): 15-20.

Figures/Tables 2

References 32

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Investigation progress of ageing process of plaster of paris

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