Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
Patent
1984-02-29
1985-11-26
Carter, H. T.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vib metal
423 56, 423 58, 423 61, 423606, C01G 3900
Patent
active
045553866
ABSTRACT:
Processes are described for preparing pure ammonium molybdate from impure roasted molybdenum concentrates. An aqueous solution of nitric acid, ammmonium sulfate, and ammonium nitrate is contacted with impure molybdenum concentrate to solubilize a major portion of the impurities. The resulting molybdenum concentrate is digested in ammonium hydroxide under conditions that maximize iron precipitation and removal. The resulting ammonium molybdate solution is separated from the sludge and further purified by chelating cation exchange resin in the ammonium form.
REFERENCES:
patent: 3694147 (1972-09-01), Drobnick
patent: 3829550 (1974-08-01), Ronzio et al.
patent: 3848049 (1974-11-01), Ronzio et al.
patent: 3860419 (1975-01-01), Weber et al.
patent: 3957946 (1976-05-01), Ronzio et al.
Carter H. T.
GTE Products Corporation
Walter Robert E.
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