Process for the thermal treatment of iron oxides in a circulatin

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...

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106459, 423632, 423633, 423636, C09C 122

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058370510

ABSTRACT:
The present invention relates to a process for the production of iron oxide brown, red and black pigments and to the use thereof.

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