Processing of calcium carbonate minerals

Details Processing of calcium carbonate minerals Processing of calcium carbonate minerals

1978-07-24

1981-02-17

Halper, Robert

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209211, 241 16, 423430, B03B 104

Patent

active

042513510

ABSTRACT:
A stable, pumpable suspension of a calcium carbonate mineral is prepared by a method which includes the step of removing abrasive particles from a deflocculated, concentrated aqueous suspension of the calcium carbonate mineral by centrifuging the suspension at a solids content of at least 65% by weight under conditions such that the quantity of particles in said suspension having an equivalent spherical diameter larger than 10 .mu.m is reduced.

REFERENCES:
patent: 2274521 (1942-02-01), Berly
patent: 2987473 (1961-06-01), Millman
patent: 3229917 (1966-01-01), Miller
patent: 3572500 (1971-03-01), Kuvlohens
patent: 4018673 (1977-04-01), Hughes

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