Method for the microwave induced oxidation of pyritic ores witho

Details Method for the microwave induced oxidation of pyritic ores witho Method for the microwave induced oxidation of pyritic ores witho

1998-01-16

1999-10-26

Straub, Gary P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Iron group metal

423153, 423154, 423571, 34259, 34265, C01G 4906, C01B 1706

Patent

active

059723025

ABSTRACT:
Pyritic ores are heated with microwave energy in a fluidized bed to a temperature in the range of approximately 573 degrees Kelvin to 823 degrees Kelvin with a controlled amount of oxygen to promote the oxidation of the pyritic ores according to the reaction: 2FeS.sub.2 +3/2 O.sub.2 .fwdarw.Fe.sub.2 O.sub.3 +4S, thereby preventing the production of sulphur dioxide.

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