熟石膏陈化过程的研究进展

doi:10.11962/1006-4990.2019-0521

摘要/Abstract

摘要：

探讨了熟石膏陈化过程中无水石膏（AⅢ-CaSO₄）与水蒸气的反应机理以及二水石膏（CaSO₄·2H₂O）的脱水机理。首先介绍了熟石膏陈化过程的基本原理,然后讲解了熟石膏陈化过程中水蒸气在AⅢ-CaSO₄上的物理吸附与化学吸附,其后描述了熟石膏陈化过程中CaSO₄·2H₂O晶体的脱水行为与脱水动力学,最后提到了CaSO₄·2H₂O、CaSO₄·0.5H₂O、AⅢ-CaSO₄的晶体结构。

关键词: 熟石膏, 陈化过程, 物理吸附与化学吸附, 脱水行为, 脱水动力学, 晶体结构

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

中图分类号:

O611

刘元会,唐晓娜,谢蕾,姜小鹏,张云波. 熟石膏陈化过程的研究进展[J]. 无机盐工业, 2020, 52(9): 15-20.

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.

图/表 2

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