FOAMING AGENT FOR FLOATATION OF MINERALS Russian patent published in 2014 - IPC B03D1/01 B03D101/04 

FIELD: chemistry.

SUBSTANCE: invention relates to mineral processing and can be used in floatation of minerals. Use of monosubstituted tertiary α-acetylene alcohols of general formula RR'C(OH)C≡CH (R=CH₃, R′=CH₃, C₂H₅, CH₂CH(CH₃)₂, R+R'=(CH₂)₅) as foaming agents during floatation of minerals. Consumption of the foaming agents of general formula RR'C(OH)C≡CH (R=CH₃, R'=CH₃, C₂H₅, CH₂CH(CH₃)₂, R+R'=(CH₂)₅) in floatation of sulphide ores of non-ferrous and precious metals is 1-60 tons per ton ore, and in floatation of coal is 30-150 tons per ton coal. The composition for floatation of minerals, which includes a foaming agent of general formula RR'C(OH)C≡CH (R=CH₃, R'=CH₃, C₂H₅, CH₂CH(CH₃)₂, R+R'=(CH₂)₅), further includes a foaming agent based on alcohols with an alkyl or heteroalkyl radical. Total consumption of the foaming agents is 5-100 g per ton ore, which contains non-ferrous and/or precious metals, wherein consumption of the foaming agent based on alcohols with an alkyl or heteroalkyl radical is 20.0-80.0% with respect to the total amount of the foaming agents. Total consumption of the foaming agents is 30-150 g per ton coal, wherein consumption of the foaming agent based on alcohols with an alkyl or heteroalkyl radical is 10.0-80.0% with respect to the total amount of the foaming agents.

EFFECT: improved floatation performance and low cost of floatation while maintaining the level of extraction of minerals.

6 cl, 4 tbl, 4 ex