Method of preparing plaster

Details Method of preparing plaster Method of preparing plaster

C - Chemistry, Metallurgy

04

B

23/103, 261/71

C04B 11/02 (2006.01) C01F 11/46 (2006.01) C04B 11/036 (2006.01)

Patent

CA 1055678

A METHOD OF PREPARING PLASTER ABSTRACT OF THE DISCLOSURE A method of preparing plaster by brief contact between gypsum and a hot gas. The method comprises introducing the gypsum through the axial tube of a nozzle, around which a hol- ical stream of hot gases is created, and bringing the two phases into contact in a vessel at the outlet of the nozzle. The method of the invention makes it possible to vary the quality of plaster produced and to use either dry gypsum or dilute gypsum pastes as the starting material.

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