Changing Energy Economics in Nonferrous Hydrometallurgy
The impact of rising energy costs in hydrometallurgy is reviewed with emphasis on copper and zinc. Electrolytic production processes are most adversely affected. However, switching to less energy-intensive reduction processes will be difficult because high energy costs are also stimulating downsizing and lower metal production growth rates, and capital costs for new plants and plant modifications have risen rapidly. This paper examines economic factors that will guide future hydrometallurgy development.
KeywordsEnergy Cost Hydrometallurgical Process Oxide Copper Zinc Plant Constant Dollar
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- 1.U.S. Department of Labor, Bureau of Labor Statistics, Producer Price Index — All Commodities.Google Scholar
- 2.Construction Cost Index History 1905–1982, Engineering News Record, March 24, 1983, p. 117.Google Scholar
- 3.Data Resources, Inc., Lexington, Massachusetts.Google Scholar
- 4.R. W. Bartlett, “Copper Concentrate Conversion with Sulfite Reduction of Leached Copper,” SME Transactions, 266 (1979), pp. 2049–2051.Google Scholar
- 5.D. J. Robinson, “SO2 Electrowinning in Copper Hydrometallurgy for Energy Conservation,” J. Metals, 36(1) (1984), pp. 43–47.Google Scholar