2019-8-28 · 2019-8-28 · Sanmenxia Yongtai Gypsum Technology Co., Ltd. was founded in 1995, located in Xiaodongmen, Huixing Town, Hubin District, Sanmenxia City, Henan Province, 8 km from Sanmenxia Yellow River Dam and 3 km from the railway station. It is the first branch of the group and has a history of 22 years. Jingmen Songguan Gypsum Co., Ltd. was established in ...
2007-3-1 · 2007-3-1 · The hydration of calcium sulphate hemihydrate (CaSO 4 ·0.5H 2 O) leading to the crystallization of gypsum (calcium sulphate dihydrate – CaSO 4 ·2H 2 O) has been the subject of several investigations over a long period and a vast amount of data is widely distributed throughout in the literature. In this review article an overall picture of the subject is presented.
Hemihydrate can be used instead of gypsum. 。Gypsum can be used as a soil conditioner. 。Up to 5% of gypsum can be added to cement products. 5%25 ...
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2011-11-1 · 2011-11-1 · Gypsum is a calcium sulfate dihydrate (CaSO 4 ·2H 2 O) which occurs in different countries and its use is widespread all over the world. It can be used in both natural and burnt forms. Natural gypsum is used in agriculture and in Portland cement plants. Burnt gypsum is used to produce hemihydrate, extensively used in buildings, ceramics and ...
2019-4-22 · 2019-4-22 · Preparing α-hemihydrate gypsum (α-HH) from phosphogypsum (PG) in electrolyte solution and atmospheric pressure has been developed as an energy-efficient and profitable method to dispose PG, which can alleviate its environmental contamination ...
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Calcium sulfate hemihydrate. Plaster of paris. Gypsum hemihydrate. 26499-65-0. Plaster of Paris (Ca(SO4).1/2H2O)
2018-5-28 · 2018-5-28 · Synthesis of α-hemihydrate gypsum from cleaner Journal of Cleaner Production ( IF 9.297) Pub Date : 2018-05-28, DOI: 10.1016/j.jclepro.2018.05.228 Baoguo Ma,Wenda Lu,Ying Su,Yubo Li,Chao Gao,Xingyang He