Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1987-04-03
1988-04-05
Sneed, Helen M. S.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423 56, C01G 3902
Patent
active
047357916
ABSTRACT:
A process is disclosed for producing ammonium molybdate from molybdenum trioxide which involves digesting molybdenum trioxide with ammonia in a sealed vessel equipped with one or more stirrers at a temperature of from about 20.degree. C. to about 80.degree. C., with the amount of ammonia being equal to the stoichiometric amount needed to form normal ammonium molybdate, up to about 2.9 times this stoichiometric amount, to form an ammonium molybdate solution containing essentially all of the starting molybdenum; followed by separating the solution from any insolubles. The method is especially useful for molybdenum containing iron as an impurity. Essentially all of the iron reports with the insolubles.
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Castle Donald R.
GTE Products Corporation
McFarlane Anthony
Quatrini L. Rita
Sneed Helen M. S.
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