FIELD: metallurgy.
SUBSTANCE: method includes concentrate baking with sodium chloride, catching in condenser of the generated molybdenum dihydroxychloride with its processing to ammonium paramolybdate. Then leaching of the baking hard residues is performed initially by water, then by alkali solution with further creation of ammonium paramolybdate or molybdenum trioxide. At that baking with sodium chloride is performed at 500-550°C upon presence of air oxygen.
EFFECT: reduced expenses for alkali due to creation during baking of the hard water-miscible molybdenum compounds.
1 dwg, 2 ex
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