Current Trends in Metallurgy.
Eng and Min J June/July 1975 :36 pages
This report discusses more efficient ways of using long-established processing technology to combat the rising costs of raw materials, labor, and equipment in the field of minerals processing; environmental controls for new and cleaner processing techniques; the adaptation of old and new plants to unused energy sources to alleviate the rising costs and shortages of fuel; and the processing equipment and process chemistry. The relative merits of pyrometallurgy and hydrometallurgy are also debated.
Eng. and Min. J., June/July 1975, Preprint