Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iva metal
Patent
1982-01-04
1986-02-04
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iva metal
423 87, 423 99, 423139, C01G 1700
Patent
active
045685266
ABSTRACT:
A process for selective liquid-liquid extraction of germanium from an aqueous acidic liquor containing, besides germanium, at least one other metal selected from the group which comprises cadmium, zinc, cobalt, iron, arsenic and nickel. This process includes extracting germanium from said aqueous liquor by contacting said liquor with an organic medium containing a diluent and an extractant, said diluent being immiscible with said aqueous liquor. 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.
REFERENCES:
patent: 3637711 (1972-01-01), Budde et al.
patent: 3883634 (1975-05-01), DeSchepper et al.
Cote et al., "Liquid-Liquid Extraction of Germanium with Oxine Derivatives", Hydrometallurgy, vol. 5 (Feb. 1980), pp. 149-160.
Marchon et al., "Some Typical Behaviours of the .beta.-Dodecenyl-8-Hydroxyquinoline Through its Reactions with Germanium (IV)", Journal of Inorganic and Nuclear Chemistry, vol. 41, No. 9 (1979), pp. 1353-1363.
Rudenko et al., "Extraction Kinetics of Germanium 8-Oxyquinolinate", Vestnik Moskovskogo Universiteta, Khimiya, vol. 24, No. 4, pp. 103-106, 1969.
Cote Gerard
Fossi Paolo
Marchon Bruno
Rouillard nee Bauer Denise
Doll John
Langel Wayne A.
Societe Miniere et Metallurgique de Penarroya
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