Process for removal of impurities from secondary alumina fines and alumina and/or fluorine containing material

Process for removal of impurities from secondary alumina fines and alumina and/or fluorine containing material

The invention relates to a process for removal of impurities from secondary aluminia fines and alumina and or fluorine containing material comprising. (a) acidification by adding an acid ( 2,12,32 ) to the material to be purified ( 1,11,31 ); (b) heading the acidified mixture ( 3,13,35 ); (c) leachi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: BADE OTTO M, DAHL IVAR
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to a process for removal of impurities from secondary aluminia fines and alumina and or fluorine containing material comprising. (a) acidification by adding an acid ( 2,12,32 ) to the material to be purified ( 1,11,31 ); (b) heading the acidified mixture ( 3,13,35 ); (c) leaching the mixture in a solution of an acid ( 6,16,39 ); (d) separating the solid and liquid.