Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1997-06-16
2000-05-30
Marcheschi, Michael
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
1062871, 106488, 501148, 209 5, 209 10, 209172, C04B 3304, C09C 142, B03B 104
Patent
active
060686936
ABSTRACT:
A method of enhancing the brightness and increasing the yield of a kaolin clay by optimizing the removal of the titania and mica impurities in the clay and the amount of clay remaining in the slurry is disclosed. The method is a selective flocculation process wherein the clay is blunged, dispersed, and conditioned before flocculation. In the flocculation step, a high molecular weight anionic polymer and a low molecular weight anionic polymer, such as sodium polyacrylate, are added to the slurry after the conditioning process, whereby the titania-mica enriched flocs are separated from the suspension which is enriched with kaolin. This final kaolin product has titania levels ranging from 0.1% to 0.5%, a reduced mica level, a high usable product yield, and a brightness greater than 89.5 and at least 91.5.
REFERENCES:
patent: 3857781 (1974-12-01), Maynard
patent: 4088732 (1978-05-01), Maynard et al.
patent: 4105466 (1978-08-01), Kunkle et al.
patent: 4468317 (1984-08-01), Turner, Jr.
patent: 4604369 (1986-08-01), Shi
patent: 5147458 (1992-09-01), Skipper et al.
patent: 5154767 (1992-10-01), Kunkle et al.
patent: 5190615 (1993-03-01), Kunkle et al.
patent: 5385239 (1995-01-01), Kunkle et al.
patent: 5535890 (1996-07-01), Behl et al.
patent: 5573658 (1996-11-01), Kunkle et al.
patent: 5584394 (1996-12-01), Behl et al.
patent: 5603411 (1997-02-01), Williams et al.
Archer Dona L.
Brown H. Vince
Garforth William L.
Garska Michael J.
Pruett Robert J.
ECC International Inc.
Kikel Suzanne
Marcheschi Michael
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