MANUFACTURING PROCESS OF HIGH PURITY AND HIGH DENSITY ALUMINA USED HIGH TEMPERATURE VACUUM SINTERING FURNACE

The present invention relates to a method for producing alumina with high purity and high density using a high temperature vacuum sintering furnace. The method includes: a first process of synthesizing aluminum hydroxide (Al(OH)_3, ATH); a second process of separating aluminum hydroxide (ATH) from t...

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Bibliographische Detailangaben
Hauptverfasser:	PARK, JUN U, KIM, HEUN DUK, LEE, WON GUN, BAK, JIN HYEON, CHO, BUM RAE
Format:	Patent
Sprache:	eng ; kor
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:	The present invention relates to a method for producing alumina with high purity and high density using a high temperature vacuum sintering furnace. The method includes: a first process of synthesizing aluminum hydroxide (Al(OH)_3, ATH); a second process of separating aluminum hydroxide (ATH) from the synthesized aluminum hydroxide (Al(OH)_3, ATH) using a solid-liquid separator; and a third process of producing alumina (Al_2O_3) using the aluminum hydroxide (ATH). According to the method, purity and the yield of aluminum hydroxide as a raw material for alumina are increased. Therefore, the amount of alumina production is increased, and environmental pollution can be reduced.