Re-extracting metal chloride complex from an organic extraction

Details Re-extracting metal chloride complex from an organic extraction Re-extracting metal chloride complex from an organic extraction

1978-07-03

1980-05-20

Hearn, Brian E.

Chemistry of inorganic compounds

Extracting, leaching, or dissolving

423 24, 423 89, 423100, 423139, 423488, 423544, 423DIG14, 423DIG1, 134 10, 75101BE, C01B 1796, C01B 701

Patent

active

042039649

ABSTRACT:
The invention relates to the re-extraction of a metal from an organic extraction solution in which the metal is present as a metal chloride complex bonded to an extractant. The organic extraction solution is contacted with an aqueous solution, to transfer metal ions and chloride ions to the aqueous solution. Sulphuric acid is added to the aqueous solution, which is subsequently heated to drive off hydrogen chloride and water. Metal sulphate is removed from the acidified aqueous solution.

REFERENCES:
patent: 2950170 (1960-08-01), Harnisch et al.
patent: 3870060 (1975-03-01), Liljenzin et al.
patent: 3932579 (1976-01-01), Morgan
patent: 3988224 (1976-10-01), Barriere
Reinhardt "Solvent Extraction for Recovery of Metal Waste" Chemistry and Industry Mar. 1, 1975 pp. 210-213.

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