Removal of potassium from ammonium molybdate

Details Removal of potassium from ammonium molybdate Removal of potassium from ammonium molybdate

1990-11-02

1992-01-21

Lewis, Michael

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 53, 423 58, 423 61, 423606, 423593, C01G 3900

Patent

active

050826379

ABSTRACT:
Potassium impurity is removed from ammonium molybdate by dissolving the ammonium molybdate in hot acid, allowing the acid solution to cool whereby the ammonium molybdate precipitates out of the solution as molybdenum trioxide and then separating, washing and drying the molybdenum trioxide.

REFERENCES:
patent: 3860419 (1975-01-01), Weber et al.
patent: 3957946 (1976-05-01), Ronzio et al.
patent: 3988418 (1976-10-01), Kerfoot et al.
patent: 4612172 (1986-09-01), Brunelli et al.
patent: 4643884 (1987-02-01), Cheresnowsky et al.
patent: 4724128 (1988-02-01), Cheresnowsky et al.
patent: 4933152 (1990-06-01), Scheftic et al.

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