COAL FLOTATION PROCESS Russian patent published in 2007 - IPC B03D1/02 

FIELD: mining industry.

SUBSTANCE: invention relates to mineral concentration processes and can be used for flotation of coals with various degrees of mineralization. Conditioning of pulp involves addition of foaming agent and collector, the latter being heavy polymer distillate composed of, wt %: isobutylene trimers C₁₂H₂₄ 10-20, isotridecenes C₁₃H₂₆ 3-10, isotetradecenes C₁₄H₂₈ 3-12, isopentadecenes C₁₅H₃₀ 2-17, isobutylene tetramers C₁₆H₃₂ 30-70, , isoheptadecenes C₁₇H₃₄ 6-10, and non-identified hydrocarbons 3-4.

EFFECT: increased recovery of combustible mass into concentrate and reduced consumption of reagent.

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