Flow characteristics of synthetic iron oxide
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United States of America Patent
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-
Nov 10, 1981
Grant Date -
N/A
app pub date -
Mar 23, 1979
filing date -
Mar 23, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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Cited Art Landscape
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