FORFARANDE FOR UTFELLNING AV EN VESENTLIGEN JERNFRI KROM(III)FORENING

FORFARANDE FOR UTFELLNING AV EN VESENTLIGEN JERNFRI KROM(III)FORENING

A chromium (III) compound containing very little iron compound contaminant is selectively precipitated from a mixture of iron and chromium compounds in aqueous acid solution by use of an elevated temperature and pressure, the acid aqueous solution of iron and chromium compounds containing at least 2...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: 3)F H TUOVINEN, 1)S O HEIMALA, 2)S-E HULTHOLM
Format: Patent
Sprache:swe
Schlagworte:
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
INORGANIC CHEMISTRY
METALLURGY
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Beschreibung
Zusammenfassung:A chromium (III) compound containing very little iron compound contaminant is selectively precipitated from a mixture of iron and chromium compounds in aqueous acid solution by use of an elevated temperature and pressure, the acid aqueous solution of iron and chromium compounds containing at least 2 g/l of bivalent chromium.