Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1977-02-14
1980-04-29
Carter, Herbert T.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204112, 204119, 75101BE, 75117, 75119, 75120, 423 24, 423 41, 423100, 423109, 423139, 423140, 423DIG14, 4236585, C25G 108, C01G 300, C01G 4900, C01G 5300
Patent
active
042005043
ABSTRACT:
Process for extraction and separation of metals utilizing the advantages of liquid-liquid extraction with cation exchangers without requiring the equivalent addition of alkali. The process is based on a combination of leaching the metal-containing raw materials with an organic acid (cation exchanger) and a subsequent use of the formed metal cationic complex in a liquid-liquid extraction process. In the said extraction process, the organic solution of metal complexes is used to recover and separate metal ions from an aqueous solution of metal salts.
REFERENCES:
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patent: 3663163 (1972-05-01), DePree et al.
patent: 3666446 (1972-05-01), Cook et al.
patent: 3958986 (1976-05-01), Thorsen
patent: 4008134 (1977-02-01), Thorsen
Marinsky et al., Editors, Ion Exchange and Solvent Extraction, vol. 3, Marcel Dekker, Inc., NY (1973), pp. 14-19.
Madigan, "The Extraction of Certain Cations from Aqueous Solution with Di-(2-Ethylhexyl)Orthophosphate", Australian J. of Chem., vol. 13, No. 1 (1960), pp. 58-66.
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