Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iib metal
Patent
1988-05-16
1989-12-26
Stoll, Robert L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iib metal
423109, 423150, 423153, 423622, 423632, 75 6, 75 7, 75 9, 75101R, 75120, 75121, 204114, C01G 903, C01G 4902
Patent
active
048896942
ABSTRACT:
Iron-containing zinc sulfide concentrate is processed to recover zinc values therefrom. The concentrate is roasted to convert zinc sulfide and iron sulfide to their oxides while adequate sulfide-sulfur is retained to maintain the iron values in the ferrous state and thereby avoid ferrite formation. Zinc oxide and iron oxide values are recovered from the roast, simultaneously or sequentially, and residual zinc sulfide may be recycled to the roasting step.
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Spink Donald R.
Stein Jerry Y.
Stoll Robert L.
University of Waterloo
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