FIELD: mineral dressing. SUBSTANCE: sulfide ores are ground and fractioned, after which sulfides are isolated into combined concentrate followed by aeration conditioning in lime medium with collector and flotation separation. According to invention, conditioning of slurry is performed at pH 8.5-9.0 and collector employs ethyldithiocarbamates with general formula R-NH-CS-S-CH2CH2CN where R is cycloalkyl, alkyl or aryl. EFFECT: enhanced efficiency of process. 4 tbl
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Authors
Dates
1997-11-20—Published
1995-11-27—Filed