Abstract
The object under investigation was stale clinker from zinc production at OAO Elektrotsink. Its main components are copper (0.67%), zinc (5.0%), lead (1.0%), iron (21.71%), and coke breeze (10% C). The chemical compounds constituting the clinker differ in density, magnetic, and flotation properties. These distinctions are based on the combined methods of mechanical concentration recommended for use in clinker processing. The results of an investigation of competitive process flowsheets of clinker processing are presented. They differ in the construction and sequence of applying various concentration methods. The process flowsheet characterized by an open grinding cycle and different ways of processing sands and classifier drain is recommended. A comparison of the cost of the marketable products and the expenses associated with its extraction indicates that clinker processing is economically sound.
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