Title: Equipments and method for continuous calcination of aluminium hydroxide
Application Number: 85101687 Application Date: 1985.04.01
Publication Number: 1007581 Publication Date: 1987.01.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01F7/30
Applicant(s) Name: Klockner-Humboldt-Deutz Aktiengesellschaft (DE) De Address:
Inventor(s) Name: Christoph Schmitz
Attorney & Agent: TAO LINGAI
Abstract:
     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.
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