FORFARANDE FOR FRAMSTELLNING AV EN JERNFRI KROM(III)FORENING UR EN SUR VATTENLOSNING INNEHALLANDE JERN OCH KROM

An iron-free chromium(III) compound is precipitated at an elevated temperature and pressure from an acidic aqueous solution which contains iron and chromium. In order to prevent coprecipitation of iron, an additive is added to the precipitation stage in an amount sufficient to provide in the precipi...

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Main Authors 2)S E HULTHOLM, 3)F H TUOVINEN, 1)S O HEIMALA
Format Patent
LanguageSwedish
Published 08.02.1988
Edition4
Subjects
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
INORGANIC CHEMISTRY
METALLURGY
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Abstract An iron-free chromium(III) compound is precipitated at an elevated temperature and pressure from an acidic aqueous solution which contains iron and chromium. In order to prevent coprecipitation of iron, an additive is added to the precipitation stage in an amount sufficient to provide in the precipitation conditions at least 2 g/l of bivalent chromium in the solution.
AbstractList An iron-free chromium(III) compound is precipitated at an elevated temperature and pressure from an acidic aqueous solution which contains iron and chromium. In order to prevent coprecipitation of iron, an additive is added to the precipitation stage in an amount sufficient to provide in the precipitation conditions at least 2 g/l of bivalent chromium in the solution.
Author 2)S E HULTHOLM
3)F H TUOVINEN
1)S O HEIMALA
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Snippet An iron-free chromium(III) compound is precipitated at an elevated temperature and pressure from an acidic aqueous solution which contains iron and chromium....
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COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
INORGANIC CHEMISTRY
METALLURGY
Title FORFARANDE FOR FRAMSTELLNING AV EN JERNFRI KROM(III)FORENING UR EN SUR VATTENLOSNING INNEHALLANDE JERN OCH KROM
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