Molybdenum recovery from spent acid solution

Details Molybdenum recovery from spent acid solution Molybdenum recovery from spent acid solution

1975-02-25

1976-06-15

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 58, 423593, C01G 3900, C22B 3434

Patent

active

039638235

ABSTRACT:
Dissolved molybdenum is recovered from spent sulfuric acid-nitric acid solution by adding ammonium hydroxide to spent acid solution to raise pH thereof to from about 1.5 to about 3, and preferably from 2 to 3. Solution is then agitated and simultaneously heated at a temperature less than about 95.degree.C until substantially all dissolved molybdenum is precipitated as ammonium molybdate complex, from which the precipitate is then recovered.

REFERENCES:
patent: 1250063 (1917-12-01), Westling
patent: 1948407 (1934-02-01), Watts
patent: 3393971 (1968-07-01), Vanderpool et al.

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