Purification of wet process phosphoric acid as a pretreatment st

Details Purification of wet process phosphoric acid as a pretreatment st Purification of wet process phosphoric acid as a pretreatment st

1979-02-21

1981-09-29

Kyle, Deborah L.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 3, 423 10, 423321R, 423321S, C01B 25235

Patent

active

042922780

ABSTRACT:
A metal containing acidic solution, also containing humic acid impurities and contaminants, is purified by contacting the acidic solution with a scrubbing agent consisting essentially of a metal extractant and from about 50 vol.% to about 90 vol.% of a hydrocarbon, where the scrubbing agent interacts with impurities and contaminants in the acidic solution to form a sludge phase which is removed and a purified acid phase which can be fed into a metal recovery process.

REFERENCES:
patent: 2830872 (1958-04-01), McCullough
patent: 2859092 (1958-11-01), Bailes et al.
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3835214 (1974-09-01), Hurst et al.
patent: 3969476 (1976-07-01), Lucas et al.
patent: 4087512 (1978-05-01), Reese et al.
Hurst et al., "Recovery of Uranium from Wet-Process Phosphoric Acid", Ind. Eng. Chem. Process Des. Develop., vol. 11, No. 1 (1972) pp. 122-128.

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