PROCESS FOR MAKING RED MUD AND BAUXITE IRON-FREE AND FOR THE PREPARATION OF A RAW MATERIAL FOR ALUMINA INDUSTRY AND IRON PENTACARBONYL

A process for deironing red mud and bauxite and for the preparation of a raw material for alumina industry and of iron pentacarbonyl comprises a/activating the red mud or bauxite starting material at 150-800 DEG C under a pressure of 0.1-100 bars in a reducing gas stream in the presence of one or mo...

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Bibliographic Details
Main Authors JOZSEF BATORY, REZSO CSIKOS, ISTVAN FARKAS
Format Patent
LanguageEnglish
Published 24.08.1988
Edition4
Subjects
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Summary:A process for deironing red mud and bauxite and for the preparation of a raw material for alumina industry and of iron pentacarbonyl comprises a/activating the red mud or bauxite starting material at 150-800 DEG C under a pressure of 0.1-100 bars in a reducing gas stream in the presence of one or more promoter(s) and thereafter b/carbonylating at 50-300 DEG C under a pressure of 25-300 bars with carbon monoxide or a gas containing carbon monoxide and removing the iron pentacarbonyl formed from the system. The advantage of the present invention is that it provides a process for the effective removal of the iron content of red mud or bauxite and moreover it enables the utilization of the removed iron in the valuable form of iron pentacarbonyl which is suitable for use in iron metallurgy.
Bibliography:Application Number: GB19850006054