Process for producing .alpha.-form gypsum hemihydrate

Details Process for producing .alpha.-form gypsum hemihydrate Process for producing .alpha.-form gypsum hemihydrate

C - Chemistry, Metallurgy

04

B

23/103

C04B 11/024 (2006.01) B01D 53/50 (2006.01) C01F 11/46 (2006.01) C04B 11/26 (2006.01)

Patent

CA 1258961

TITLE OF THE INVENTION: PROCESS FOR PRODUCING .alpha.-FORM GYPSUM HEMIHYDRATE ABSTRACT OF THE DISCLOSURE: Disclosed herein is a method for producing .alpha.-form gypsum hemihydrate, comprising heating an aqueous slurry containing gypsum dihydrate and a salt of sulfosuccinic acid as the catalyst for crystallization, thereby converting gypsum dihydrate into .alpha.-form gypsum hemihydrate.

490153

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