Gipronickel Institute (Russia):

Maksimov V. I., Head of Laboratory

Mekhanobr-Orgsintez-Reagent JSC (Russia):

Ryaboy V. I., General Director, Doctor of Engineering,, frim@isc1.nw.ru

Gipronickel Institute (Russia):
Korolyeva Ye.V., Senior Researcher, Ph. D. in Technical Sciences

Instead of butyl aerofloat, its modification — BTF-161SK, being a more effective reagent, is proposed for application on account of current involvement of the difficultlytreated and complex Zhdanovskoye deposit cupreous ores in processing and decrease in metals recovery in flotation concentration, mostly due to worsening of frothing in cleaning operations. Reagent BTF-161SK, in contrast to butyl aerofloat, possesses good frothing properties, also in cleaning operations, providing for metals recovery and flotation process rate increase. Conditions of aerofloat dosing into the process were studied. It is shown, that maximum recovery of nickel and copper is achieved with aerofloat addition directly into flotation cell without preagitation, when aerofloat ability to oxidize disulfide is decreased. Disulfide, as an oily product, with aerofloat application may promote froth suppression in cleaning operations, and in this connection reagent BTF-161SK ability to form disulfide is reduced. The results of BTF-161SK testing on rougher flotation feed with use of return water under the concentrating plant laboratory conditions are presented. It is noted, that the reagent is ready for commercial application.

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