Process for the preparation of discrete particles of calcium car

Details Process for the preparation of discrete particles of calcium car Process for the preparation of discrete particles of calcium car

1995-12-05

1998-04-21

Langel, Wayne

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

423430, C01F 1118

Patent

active

057414718

ABSTRACT:
A process for the precipitation of discrete prismatic calcium carbonate particles by carbonation of aqueous calcium hydroxide containing a saccharide or polysaccharide or a saccaride or polysaccharide and a metal ion at temperatures of from about 8.degree. C. to about 64.degree. C. is disclosed. The resulting product has specific surface areas between about 10 m.sup.2 /g and about 120 m.sup.2 /g and is useful in paints, plastics, paper coating, paper filling, and pharmaceutical applications.

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Robert S. Boynton, Chemistry and Technology of Lime and Limestone, Interscience Publishers (1966), pp.287-289.

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