OPTIMIZED SEMI-DRY PROCESS FOR SINTERING OF ALUMINOSILICATES IN THE PRODUCTION OF ALUMINA

Abstract The invention relates to an apparatus for treating aluminium comprising at least one device for mixing (20, 22, 30, 40) aluminium ore with limestone and sodium and/or potassium carbonate to obtain a mixture and a calcination reactor (60) for producing the calcine. A circulating fluidized be...

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Hauptverfasser:	SCARSELLA, Alessio, SCHNEIDER, Günter, WROBEL, Maciej, STURM, Peter, ROTHENFLUH, Tobias, STRAZZULLO, Fabio
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Abstract The invention relates to an apparatus for treating aluminium comprising at least one device for mixing (20, 22, 30, 40) aluminium ore with limestone and sodium and/or potassium carbonate to obtain a mixture and a calcination reactor (60) for producing the calcine. A circulating fluidized bed reactor (50) is arranged between the device for mixing (20, 22, 30. 40) and the calcination reactor (60) and in which the mixture is pre-calcined.