PRODUCTION OF RUTILE MIXED PHASE PIGMENT

The present invention relates to a process for manufacturing mixed-phase rutile pigments by calcining solid mixtures of titanium dioxide and/or titanium dioxide hydrate with colouring metal compounds, in particular of chromium and/or nickel, in the presence or absence of compounds of antimony, niobi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YAKOPU RADEMATSUHAASU, HANSUUPEETAA HAISE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to a process for manufacturing mixed-phase rutile pigments by calcining solid mixtures of titanium dioxide and/or titanium dioxide hydrate with colouring metal compounds, in particular of chromium and/or nickel, in the presence or absence of compounds of antimony, niobium or tungsten in an indirectly heated rotary furnace operated with air supply.