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Abstract
In the past few years extractive metallurgy has been advancing gradually. There have beun probably few remarkable new ideas but there has been an important progress in the metallurgical literature. Numerous meetings devoted to various aspects of extractive metallurgy were held and,the proceedings of these meetings were published in the form of useful books readily available to the scientific community. Besides, annual reviews covering all areas of extractive metallurgy arc being published. One may outline the progress and the problems in the following points: (i) processing of low-grade ores, (ii) processing of complex ores, (iii) preparation of metals in a high purity, (iv) increased demand for metals, (v) conservation of mineral resources, (vi) abating pollution of the environment, (vii) minimum expenditure of energy, and (viii) process control, manpower, and automation.