Method and apparatus for pressurized calcination of gypsum

Details Method and apparatus for pressurized calcination of gypsum Method and apparatus for pressurized calcination of gypsum

C - Chemistry, Metallurgy

04

B

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

Patent

CA 2715793

A method for calcining gypsum in a pressurized reactor by injecting combustion gases and air into the pressurized reactor to create a fluidized bed of gypsum, and heating the fluidized bed of gypsum in the pressurized reactor sufficiently to form a calcined hemihydrate.

L'invention concerne un procédé de calcination du gypse dans un réacteur sous pression par injection de gaz de combustion et d'air dans le réacteur sous pression pour créer un lit fluidisé de gypse, et chauffage du lit fluidisé de gypse dans le réacteur sous pression à un niveau suffisant pour former un semi-hydrate calciné.

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