Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal
Patent
1977-10-11
1981-01-06
Miller, Edward A.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Radioactive metal
423 8, C01G 4300, C01G 4302
Patent
active
042436370
ABSTRACT:
Impure phosphoric acid containing uranium values is pretreated with a water immiscible organic sulfonic acid, preferably in conjunction with a water immiscible organic acid phosphate compound, for extraction of ionic metallic impurities and organic impurities to produce pretreated phosphoric acid containing uranium values. Pretreated phosphoric acid is contacted with a water immiscible extractant comprising an organic uranium-extracting agent, preferably an organophosphorus compound, dissolved in a water immiscible organic diluent to produce uranium-depleted phosphoric acid and uranium-enriched extractant. Uranium is recovered from the uranium-enriched extractant.
REFERENCES:
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3737513 (1973-06-01), Wiewiorowski et al.
patent: 3835214 (1974-09-01), Hurst et al.
patent: 3966873 (1976-06-01), Elikan et al.
patent: 4002716 (1977-01-01), Sundar
patent: 4053564 (1977-10-01), Bradford et al.
Bradford James L.
Ore Fernando
Bisson Barry A.
Miller Edward A.
Occidental Petroleum Company
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