MIXED ALUMINA FOR CERAMIC

PROBLEM TO BE SOLVED: To provide a mixed alumina for ceramic which can be calcined in a rotary kiln or an airflow calcination furnace and the like with homogeneous calcination levels, can easily maintain strict quality control and can curb as much as possible generation of bubbles which often become...

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Bibliographische Detailangaben
Hauptverfasser:	KOKUNI MASANORI, KOZUKA TAKESHI, ISHIKAWA HIDENORI, IKEDA MASAMOTO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS CONCRETE INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a mixed alumina for ceramic which can be calcined in a rotary kiln or an airflow calcination furnace and the like with homogeneous calcination levels, can easily maintain strict quality control and can curb as much as possible generation of bubbles which often becomes problems in such alumina and are suitable for manufacturing a ceramic product. SOLUTION: The mixed alumina consists of a mixture of a base alumina having a calcined BET specific surface area of 2 m /g or less and an additive alumina having BET specific surface area of 5-30 m /g of 1-10 wt.%. By the usage of this mixed alumina for production of ceramic products homogeneous quality of the products can be easily maintained and generation of bubbles which often becomes problem can be curbed.