Method to maintain a high Fe.sup.+2 /Fe.sup.+3 ratio in the stri

Details Method to maintain a high Fe.sup.+2 /Fe.sup.+3 ratio in the stri Method to maintain a high Fe.sup.+2 /Fe.sup.+3 ratio in the stri

1980-07-24

1983-08-09

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 10, C01G 4300

Patent

active

043978207

ABSTRACT:
A process to maintain a high iron +2/iron +3 concentration in the reductive stripping system for recovering uranium from wet-process phosphoric acid, comprises contacting partially oxidized strip acid, containing substantial amounts of iron +3, which had just previously stripped uranium values from an organic solvent, with elemental iron to reduce iron +3 to iron +2 and provide a Fe.sup.+2 /Fe.sup.o conversion ratio of from about 1.5 to 3.0.

REFERENCES:
patent: 2859092 (1958-11-01), Bailes et al.
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3737513 (1973-06-01), Wiewiorowski et al.
patent: 4002716 (1977-01-01), Sundar
patent: 4241027 (1980-12-01), Bowerman et al.

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