Process for extracting trivalent thallium values from aqueous so

Details Process for extracting trivalent thallium values from aqueous so Process for extracting trivalent thallium values from aqueous so

1978-04-14

1979-02-13

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

75101BE, 423DIG14, C01G 1500

Patent

active

041395948

ABSTRACT:
Trivalent thallium values are extractively recovered from aqueous media containing dissolved trivalent and monovalent thallium values by contacting the aqueous medium in the presence of an alkanoic acid, having from 2 to 4 carbon atoms per molecule and having a molecular weight of at least 74 grams per gram-mol of acid, with an inert, organic, non-acidic solvent for the alkanoic acid, said solvent having limited solubility in water, to preferentially extract at least a portion of the dissolved trivalent thallium values into the organic solvent extractant and recovering an extract comprising the organic solvent containing the extracted trivalent thallium values.

REFERENCES:
patent: 3399956 (1968-09-01), Hirose et al.
patent: 4031196 (1977-06-01), Leonard
Schweitzer et al., "Anal. Chim. Acat", vol. 45, 1969, pp. 192-195.
Kuzin et al., "Chemical Absts.", vol. 65, p. 6298h.
Morrison et al., "Solvent Extraction in Analytical Chemistry", John Wiley & Sons, N.Y., 1957, pp. 236-237.

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