Method of preparing aggregated pigments from clays

Details Method of preparing aggregated pigments from clays Method of preparing aggregated pigments from clays

1989-10-04

1990-11-20

Dixon, Jr., William R.

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

106407, 423328, 501147, C09K 102

Patent

active

049716298

ABSTRACT:
Aggregation of kaolin particles by wet processing using a hydrothermal technique is described. Calcined clay is first digested in a solution containing NaOH and the obtained sodium silicate solution is separated. Aggregation of uncalcined clay particles by hydrothermal treatment is then carried out using the obtained solution. The method enables aggregation of low grade clays unsuitable for calcination. A two-stage hydrothermal process is also described. Bleaching with oxygen or bleaching compounds may be effected during hydrothermal treatment.

REFERENCES:
patent: 3586523 (1971-06-01), Fanselow et al.
patent: 3616900 (1971-11-01), Cecil et al.
patent: 3655038 (1972-04-01), Mercede
patent: 3661515 (1972-05-01), Iannicelli et al.
patent: 3765825 (1973-10-01), Hurst
patent: 3765825 (1973-10-01), Hurst
patent: 3769383 (1973-10-01), Hurst
patent: 4075280 (1978-02-01), Fitton et al.
patent: 4381948 (1983-05-01), McConnell et al.
patent: 4499062 (1985-02-01), Christophliemk et al.
patent: 4806167 (1989-02-01), Raythatha
patent: 4812299 (1989-03-01), Wason
patent: 4816074 (1989-03-01), Raythatha et al.
patent: 4851048 (1989-07-01), Jones et al.

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