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

2009-02-19

2010-10-19

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S636000

Reexamination Certificate

active

07815889

ABSTRACT:
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.

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