FIELD: mining.
SUBSTANCE: method of flotation extraction of rare metals comprises pre-crushing and further flotation under UV emission. Material is crushed in time period from 5 to 10 minutes in amino acetic acid conditions, then classification is performed to determine the grain size class -0.074+0 mm. The prepared material is delivered to the flotation process, where liquid glass is used as depressant, then collector is added, the collector comprises over 95% of sodium diisobutyldithiophosphinates, then pine oil is added as foaming agent. Simultaneously with chemicals addition the pulp is subjected to UV emission during time period from 6 to 12 minutes.
EFFECT: increased efficiency of flotation enrichment of ores comprising rare metals, including rhenium under UV exposure, and increased selectivity of separation of valuable elements.
1 dwg, 2 tbl
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|---|---|---|---|
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