C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/165
C22B 41/00 (2006.01)
Patent
CA 1179145
ABSTRACT OF THE DISCLOSURE A process for selective liquid-liquid extraction of germanium from an aqueous acidic liquor containing, be- sides germanium, at least one other metal selected from the group which comprises cadmium, zinc, cobalt, iron, ar- senic and nickel. This process includes extracting germa- nium from said aqueous liquor by contacting said liquor with an organic medium containing a diluent and an extrac- tant, said diluent being immiscible with said aqueous li- quor. The major part of germanium passes from said aqueous liquor to an organic phase which is subsequently submitted to a stripping step by contacting with an alkaline medium, with formation of an aqueous phase containing the major part of germanium from said aqueous liquor.
384069
Cote Gerard
Fossi Paolo
Marchon Bruno
Rouillard Denise
Gowling Lafleur Henderson Llp
Societe Miniere Et Metallurgique de Penarroya
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