Precipitated calcium carbonate

Details Precipitated calcium carbonate Precipitated calcium carbonate

2008-04-22

2008-04-22

Langel, Wayne A. (Department: 1793)

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

C106S464000

Reexamination Certificate

active

07361324

ABSTRACT:
A method for forming calcium carbonate is provided, the method comprising the steps of: (a) milling calcium hydroxide; (b) providing a reactor vessel containing a slurry of the milled calcium hydroxide; and (c) carbonating the slurry of the milled calcium hydroxide by introducing carbon dioxide into the reactor vessel to form basic calcium carbonate by a precipitation reaction, wherein the initial reaction temperature is from about 8° C. to about 15° C.

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