Molybdenum dioxide-molybdenite roasting

Details Molybdenum dioxide-molybdenite roasting Molybdenum dioxide-molybdenite roasting

1983-11-08

1984-07-31

Lewis, Michael L.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

423 53, 423606, C22B 102

Patent

active

044628226

ABSTRACT:
A process is disclosed for roasting molybdenite concentrates directly to molybdenum dioxide. The process comprises establishing a roasting zone having a temperature of about 700.degree. C. to about 800.degree. C., introducing into the roasting zone particulate molybdenum dioxide and molybdenite in a weight ratio of at least about 2:1 along with an oxygen-containing gas in amount sufficient to oxidize the sulfur content of the molybdenite to molybdenum dioxide.

REFERENCES:
patent: 3336100 (1967-08-01), Cloppet
patent: 3941867 (1976-03-01), Wilkomirsky et al.

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