Title:
PLANT FOR CALCINING ALUMINUM HYDROXIDE CONTINUOUSLY AND METHOD OF OPERATING PLANT
Document Type and Number:
Japanese Patent JPS60215523
Kind Code:
A
Abstract:
A method and apparatus for calcining an aluminum hydroxide source to an aluminum oxide in which the amount of the alpha -modification can be controlled from very low to very high values. In accordance with the present invention, the calcination of the source material takes place in two stages, in the first of which the material is preheated with air and then passed to a fluidized bed calciner after which it is delivered to a holding cyclone. In the second stage, the previously calcined material which may contain up to about 80% of the alpha -modification is calcined further in a rotary tubular kiln which is followed downsteam by a cooler.
Inventors:
KURISUTOFU SHIYUMITSUTSU
ISUTOFUAN KURAKUSUNERU
ISUTOFUAN KURAKUSUNERU
Application Number:
JP2662685A
Publication Date:
October 28, 1985
Filing Date:
February 15, 1985
Export Citation:
Assignee:
KLOECKNER HUMBOLDT DEUTZ AG
International Classes:
B01J6/00; C01F7/441; C01F7/444; F27B7/20; (IPC1-7): B01J6/00; C01F7/44
Attorney, Agent or Firm:
Ezaki Mitsuyoshi
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