Production of molybdenum trioxide from molybdenite in a fluidize

Details Production of molybdenum trioxide from molybdenite in a fluidize Production of molybdenum trioxide from molybdenite in a fluidize

1974-09-04

1976-03-02

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423606, 423659, C01G 3900

Patent

active

039418677

ABSTRACT:
Molybdenite or MoS.sub.2 materials, particularly finely divided flotation concentrates, are oxidized (roasted) to form molybdenum trioxide in a continuous composite fluidized bed containing non-elutriated refractory solids. A relatively high recycle ratio of oxidized calcine to feed is maintained for best results. The temperature of the circulated oxidized solids is maintained high to avoid sticking and deposition problems. High throughputs and high conversions have been achieved, with the product having a low sulfur content.

REFERENCES:
patent: 2017557 (1935-10-01), Winkler et al.
patent: 3770414 (1973-11-01), Lake et al.
patent: 3833352 (1974-09-01), Vojkouis
patent: 3848050 (1974-11-01), Jemal

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