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Dihydrate gypsum and preparation method thereof
The invention relates to dihydrate gypsum and a preparation method thereof. The dihydrate gypsum comprises the following raw materials: anhydrite, alum, sodium salt and an aqueous solution. Accordingto the method disclosed by the invention, the dihydrate gypsum with relatively large particles can be simply and conveniently prepared under the condition of adding a small amount of aqueous solution,and the addition of the aqueous solution hardly influences the later application of the product; the maximum hydration rate of the obtained dihydrate gypsum can reach 93.4%, and the maximum median diameter of the obtained dihydrate gypsum can reach 21.88 mum.
本发明涉及一种二水石膏及其制备方法，所述二水石膏的原料包括：硬石膏、明矾、钠盐及水溶液。本发明中，在添加少量水溶液的条件下，即可简便的制备得到颗粒较大的二水石膏，并且水溶液的添加对产品的后期应用几乎不存在影响；其中，所得二水石膏的水化率最高可达93.4％，中位径最高可达21.88μm。
Dihydrate gypsum and preparation method thereof
The invention relates to dihydrate gypsum and a preparation method thereof. The dihydrate gypsum comprises the following raw materials: anhydrite, alum, sodium salt and an aqueous solution. Accordingto the method disclosed by the invention, the dihydrate gypsum with relatively large particles can be simply and conveniently prepared under the condition of adding a small amount of aqueous solution,and the addition of the aqueous solution hardly influences the later application of the product; the maximum hydration rate of the obtained dihydrate gypsum can reach 93.4%, and the maximum median diameter of the obtained dihydrate gypsum can reach 21.88 mum.
本发明涉及一种二水石膏及其制备方法，所述二水石膏的原料包括：硬石膏、明矾、钠盐及水溶液。本发明中，在添加少量水溶液的条件下，即可简便的制备得到颗粒较大的二水石膏，并且水溶液的添加对产品的后期应用几乎不存在影响；其中，所得二水石膏的水化率最高可达93.4％，中位径最高可达21.88μm。
Dihydrate gypsum and preparation method thereof
一种二水石膏及其制备方法
CHEN TIANTIAN (author) / CHEN LIANG (author) / TANG YONGBO (author)
2020-05-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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