Method and apparatus for production of precipitated calcium...

Details Method and apparatus for production of precipitated calcium... Method and apparatus for production of precipitated calcium...

C - Chemistry, Metallurgy

01

F

C01F 11/18 (2006.01) C01B 33/24 (2006.01) D21H 17/67 (2006.01)

Patent

CA 2437066

A method and apparatus for the production of calcium carbonate and calcium silicate in common superatmospheric reactors. Multiple reactors (T-31, T-32) can be provided for switching production between reactors, and advantageously utilizing process waste heat. On site production of both PCC and Calcium Silicate Hydrates is thus achieved in a paper mill.

L'invention concerne un procédé et un appareil servant à la production de carbonate de calcium et de silicate de calcium dans des réacteurs superatmosphériques communs. On peut avoir recours à plusieurs réacteurs afin de commuter la production entre des réacteurs et d'utiliser de manière avantageuse la chaleur résiduaire du traitement. On parvient donc à la production sur site d'hydrates de silicate de calcium et de PCC dans une usine de papier.

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