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Electric smelting of complex lead-zinc sinter
Multiple zone mining plus beneficiation of western phosphate rock :a cost estimate and comparison with selective mining
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Published Year
1960-1969 (1)
1970-1979 (1)
Subject
Lead--Electrometallurgy (1)
Ore-dressing--Costs (1)
Phosphate mines and mining--Costs (1)
Zinc--Electrometallurgy (1)
Author
Spencer, Richard N. (2) *
Mauser, J. E. (1)
Schaefer, Seth C. (1)