Production of aqueous calcium carbonate suspensions

Details Production of aqueous calcium carbonate suspensions Production of aqueous calcium carbonate suspensions

1975-12-15

1976-11-02

Custer, Jr., Granville Y.

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

106306, B02C 2800

Patent

active

039891950

ABSTRACT:
A method of producing an easily pumpable aqueous suspension of a natural calcium carbonate material containing at least 60% by weight of particles smaller than 2 microns equivalent spherical diameter comprises forming an aqueous suspension of said natural calcium carbonate material and a minor amount of a compound which contains calcium ions or carbonate ions and has a solubility in water of at least 0.05 g per 100 ml of water at 25.degree. C; and thereafter deflocculating the natural calcium carbonate material in said aqueous suspension with a dispersing agent.

REFERENCES:
patent: 3598624 (1971-08-01), Kaufman
patent: 3604634 (1971-09-01), Windle
patent: 3797610 (1974-03-01), Windle
patent: 3920800 (1975-11-01), Harris

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