Jun 25, 1980 · Calcined Abrasive Bauxite 1.75 tons of Bauxite ... tions in bauxite mining costs estimated in 1980 between US$12/mt and US$30/mt. Labor accounts for percent of the cost, energy for about 25 percent, and ... petroleum coke, 26 million Btu per short ton, electricity, 3.413 Btu per Kilowatt-hour.
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