Flow characteristics of synthetic iron oxide

Details Flow characteristics of synthetic iron oxide Flow characteristics of synthetic iron oxide

1979-03-23

1981-11-10

McCarthy, Helen M.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106304, 423633, C09C 124, C09C 306

Patent

active

042996350

ABSTRACT:
Copperas is calcined, ground, washed, dried, and milled to give a roasted copperas red, suitable as a paint pigment. The flow characteristics of the oxide, during processing, and the dispersibility of the pigment in paint are improved by the addition of 0.5-10 wt. % SiO.sub.2 to the iron oxide after the washing step.

REFERENCES:
patent: 2785991 (1957-03-01), Bennetch
patent: 3009821 (1961-11-01), Bennetch
patent: 3947502 (1976-03-01), Leitner
patent: 4082905 (1978-04-01), Stephan et al.

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