Preparation of magnetite pigments: control of particle size

Details Preparation of magnetite pigments: control of particle size Preparation of magnetite pigments: control of particle size

1986-06-25

1987-10-27

Clingman, A. Lionel

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106306, 106309, C01G 4908, C03G 914

Patent

active

047027754

ABSTRACT:
Magnetite pigments are prepared from iron(II) salt solutions by a process in which the mean particle size can be brought to a value within the range from 0.06 to 0.5 .mu.m by means of a residence stage between the precipitation stage and the oxidation stage.

REFERENCES:
patent: 4024232 (1977-05-01), Garberi et al.
patent: 4090888 (1978-05-01), Rademachers et al.
patent: 4382822 (1983-05-01), Mayer

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