C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/12 (2006.01) C22B 3/20 (2006.01) C22B 34/12 (2006.01)
Patent
CA 2187893
An industrially realistic process for alkaline leaching of a titaniferous material is disclosed. The process comprises the following process steps: (I) leaching the titaniferous material with an alkaline leachant to bring impurities in the titaniferous material into solution; and (II) treating the leachant to enhance the effectiveness of the leachant in the removal of impurities in step (I). In particular, step (II) may involve the heating of the leachant or adding additives suck as sodium silicate or lime to cause the precipitation of alumina and silica.
Procédé réalisable à l'échelle industrielle, destiné au lessivage alcalin d'un matériau titanifère. Ce procédé consiste à: (i) lessiver le matériau titanifère au moyen d'un agent de lessivage alcalin afin que les impuretés qui y sont contenues forment une solution; et (ii) traiter l'agent de lessivage afin d'en améliorer l'efficacité dans l'extraction des impuretés de l'étape (i). L'étape (ii) peut plus notamment impliquer le chauffage de l'agent de lessivage, ou l'ajout d'additifs tel que le silicate de sodium ou la chaux afin d'entraîner la précipitation de l'alumine et de la silice.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Technological Resources Pty Ltd.
LandOfFree
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