FIELD: mining.
SUBSTANCE: invention relates to mining industry, in particular, to non-ferrous metals hydrometallurgy, and can be used at grinding of mineral raw material before enrichment and hydrometallurgical processes, for example, at grinding of sulphide zinc ore. Method consists in grinding the initial raw material in a mill with supply of surfactants into it. Surfactants used are hydrophilic-oleophilic ratio higher than 1. Content of the surfactant in solution is 0.1–0.3 %.
EFFECT: method provides higher efficiency of grinding, as well as subsequent processes of dressing and hydrometallurgical treatment due to increasing specific surface area of mineral raw material, opening of grains of minerals.
1 cl, 1 dwg
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Authors
Dates
2020-09-09—Published
2019-04-25—Filed