Subsection 27 7 in SME Mining Engineering Handbook 2:27-56to27-69
As a general rule, except for some nonmetallic minerals and fossil fuels that are mined and used without further processing, most raw ores must be subjected to some form of concentration--physical beneficiation or chemical and pyrometallurgical treatment methods-- to produce marketable-quality metal or mineral products. One or more concentrating steps usually are required. The choice of processes is dictated chiefly by the types of minerals present and the complexity of their association in the ore. Some of the processes most commonly used and their fields of applicability are identified, and references for more detailed study are given.
Subsection 27.7 in SME Mining Engineering Handbook, V. 2, PP. 27-56 to 27-69
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