VERFAHREN ZUR HERSTELLUNG VON FUER DIE SCHICHTCHROMATOGRAPHIE GEEIGNETEM ALUMINIUMOXYD UND DESSEN VERWENDUNG

The invention relates to a process for preparing alumina being suitable for layer chromatography. The alumina suitable for layer chromatography is prepared in accordance with the invention in such a manner that an aluminium trinydroxyde containing 34 to 37% by weight of bayerite, 3 to 5% by weight o...

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Bibliographic Details
Main Authors MATYASI,JOZSEF,DR, KAPTAY,GYOERGY, ZSEMBERY,LASZLO,DR, KOEKENY,BELA, NEMETH,SANDOR
Format Patent
LanguageGerman
Published 10.01.1980
Edition3
Subjects
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PHYSICS
TESTING
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:The invention relates to a process for preparing alumina being suitable for layer chromatography. The alumina suitable for layer chromatography is prepared in accordance with the invention in such a manner that an aluminium trinydroxyde containing 34 to 37% by weight of bayerite, 3 to 5% by weight of pseudoboehmite and 60 to 62% by weight of amorphous aluminium trihydroxide is heated at 300 DEG C. to 400 DEG C. for 2 to 4 hours. The activated alumina thus produced is snow-white, has a large specific surface and its average grain size is within the range between 8 and 20 mu m. The product complies with the requirements of layer chromatographical technique.
Bibliography:Application Number: DE19792925314