Study on the α-hemihydrate Gypsum Made by Desulphogypsum through Autoclave Process

In order to expand the utilization methods of desulphogypsum and meet the increasing need of α-hemihydrate gypsum, this paper studies the reasonable autoclave process of α-hemihydrate gypsum made from desulphogypsum. Some factors affecting the physical properties of α-hemihydrate gypsum are also discussed.