EQUIPMENTS AND METHOD FOR CONTINUOUS CALCINATION OF ALUMINIUM HYDROXIDE

It is for calcining aluminium hydroxide into alumina with controllable amount of very low to very high content of alpha-alumina. The calcination is proceeded with two steps. Raw materials are first preheated and then sent into a fluidized bed calcination furnace. The calcined materials that may cont...

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Bibliographic Details
Main Authors CHRISTOPH SCHMITZ, ISTVAN KRAXNER
Format Patent
LanguageEnglish
Published 24.01.1987
Edition4
Subjects
BLASTING
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
FURNACES
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
HEATING
INORGANIC CHEMISTRY
KILNS
LIGHTING
MECHANICAL ENGINEERING
METALLURGY
OPEN SINTERING OR LIKE APPARATUS
OVENS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
RETORTS
THEIR RELEVANT APPARATUS
TRANSPORTING
WEAPONS
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Summary:It is for calcining aluminium hydroxide into alumina with controllable amount of very low to very high content of alpha-alumina. The calcination is proceeded with two steps. Raw materials are first preheated and then sent into a fluidized bed calcination furnace. The calcined materials that may contain up to 80% alpha-alumina are sent to a cyclone. The calcined materials are put for further calcination in a rotary cylindrical kiln attached with an after cooler.
Bibliography:Application Number: CN19851001687