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AssigneeMagyar Aluminiumipari Troszt
InventorsJozsef Matyasi, Bela Kokeny, Laszlo Zsembery, Gyorgy Kaptay, Sandor Nemeth
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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.degree. C. to 400.degree. 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.
Process for producing alumina being suitable for layer chromatography, characterized in that an aluminium trihydroxide 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.degree. C. to 400.degree. C. for 2 to 4 hours.
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