C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 3/18 (2006.01) C22B 3/04 (2006.01) C22B 15/00 (2006.01)
Patent
CA 2500944
The invention discloses a method of introducing microorganisms into a heap of material for bio-assisted heap leaching by preparing microorganisms substantially without exopolymers on their external cell walls; adding such microorganisms to the heap; and re-activating the production of exopolymers on the external cells walls of the microorganisms in the heap. The invention also extends to a method of enriching the environment of microorganisms' embedded in a heap for bio-assisted heap leaching.
La présente invention concerne un procédé d'introduction de micro-organismes dans un tas de matériau destiné à subir une lixiviation en tas bio-assistée, qui consiste à préparer des micro-organismes sensiblement dépourvus d'exopolymères sur leurs parois cellulaires externes; à ajouter ces micro-organismes au tas; et à réactiver la production d'exopolymères sur les parois des cellules externes des micro-organismes se trouvant dans le tas. Cette invention concerne également un procédé d'enrichissement de l'environnement des micro-organismes enfouis dans un tas pour effectuer la lixiviation en tas bio-assistée.
Crundwell Frank Kenneth
Norton Alan Eric
Mineral Energetics (pty) Limited
Mintek
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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