Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Patent
1983-08-15
1985-07-09
Doll, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
423DIG14, 75101BE, 75119, 210638, B01D 1104, C01G 5100, C01G 5300
Patent
active
045281670
ABSTRACT:
A process for the extraction of metal values, in particular divalent metal ions such as copper, nickel, zinc, cobalt and manganese from aqueous solutions thereof which may be well in the acid range for example of pH 2 to 4. Extraction is effected using known organophosphorus or carboxylic acid extractants but in combination with non-chelating oximes, preferably of aldehydes wherein the alpha-carbon atom is primary or secondary. A synergistic effect between the extractant and oxime enables extraction to take place at a lower pH than heretofore thereby saving in acid and neutralizing agents in many instances.
REFERENCES:
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patent: 3872209 (1975-03-01), Hazen
patent: 3927169 (1975-12-01), Goren
patent: 4191728 (1980-03-01), Tels
Ashbrook, Coordination Chemistry Reviews (16), 1975, pp. 285-307.
Masui, Masaichiro and Hotta Keiko, "Extraction of Cu(II) with Butyraldoxime and its Colorimetry", Busenki Kagaku 11(11), 1138-1140, (1964), Japan, _abstracted in Analytical Chemistry, vol. 12, 1965, 4593f.
Council for Mineral Technology
Doll John
Stoll Robert L.
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