VERFAHREN ZUM AUFSCHLIESSEN VON DIASPOR UND/ODER GOETHIT UND/ODER FEINDISPERSEN HAEMATIT ENTHALTENDEN BAUXITEN

An improved process for accelerating the digestion process in the Bayer alumina process is provided which promotes both the goethite-hematite conversion and a more perfect and quick dissolution of the diaspore. The above is achieved by carrying out the digestion in the process of 5-20% by weight cal...

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Bibliographic Details
Main Authors WENTZELY,KALMAN, VOEROES,ISTVAN, KALMAN,TIBOR, MATYASI,JOZSEF,.DR, ORBAN,FERENC, TOTH,LAJOS,.,DR, LENGYEL,LASZLO, FERENCZI,TIBOR, TOTH,BELA,.DR, ZAMBO,JANOS,.,DR, ZOELDI,JOZSEF, SOLYMAR,KAROLY, BOROS,JOZSEF, CSILLAG,ZSOLT
Format Patent
LanguageGerman
Published 08.06.1978
Edition2
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
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
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:An improved process for accelerating the digestion process in the Bayer alumina process is provided which promotes both the goethite-hematite conversion and a more perfect and quick dissolution of the diaspore. The above is achieved by carrying out the digestion in the process of 5-20% by weight calculated on the dry weight of the bauxite of a novel hydrogarnet catalyst.
Bibliography:Application Number: DE19772754289