Production of alumina monohydrate pigment

Details Production of alumina monohydrate pigment Production of alumina monohydrate pigment

1975-02-24

1976-05-04

Carter, Herbert T.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

106309, 106288B, C01F 702

Patent

active

039549577

ABSTRACT:
Alumina monohydrate crystals of uniform particle size in the range of 0.2-0.7 microns suitable for use as pigments in paper, paints, or ink are produced by grinding Bayer trihydrate to a median particle size of 1-3 microns followed by digestion in the presence of a controlled amount of mineral acid.

REFERENCES:
patent: 1953201 (1934-04-01), Tosterud
patent: 2656250 (1953-10-01), Thibon et al.
patent: 2915475 (1959-12-01), Bugosk
patent: 3353910 (1967-11-01), Cornelius et al.
patent: 3385663 (1968-05-01), Hughes
patent: 3480389 (1969-11-01), Graulier

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