Desulfurization of fluorite ores

Details Desulfurization of fluorite ores Desulfurization of fluorite ores

1977-04-13

1979-03-13

Hearn, Brian

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Alkaline earth metal

423490, C01F 1122

Patent

active

041443128

ABSTRACT:
Fluorite ores and concentrates commonly contain sulphur as an impurity usually as the sulphate. This sulphur can be largely removed by heating the ore or a concentrate under reducing conditions.
In the preferred process the ore or a concentrate is pelletized with carbon, heated to a temperature up to 900.degree. C. in a neutral atmosphere which is conveniently nitrogen or carbon dioxide or a mixture thereof.

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