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ArticleName Selective flotation of copper-lead concentrates using iron-containing reagents
DOI 10.17580/or.2020.04.02
ArticleAuthor Turysbekov D. K., Mukhanova A. A., Narbekova S. M., Musina M. M.

Satbayev University, JSC «Institute of Metallurgy and Ore Beneficiation» (Almaty, Kazakhstan):

Turysbekov D. K., Leading Researcher, Candidate of Engineering Sciences,
Mukhanova A. A., Researcher,
Narbekova S. M., Researcher,
Musina M. M., Junior Researcher


The flotation process conditions for the polymetallic ore of the Ridder-Sokolny deposit (East Kazakhstan region) have been improved with the use of a magnetite-based iron-containing reagent. A selective flotation process was tested, including sodium sulfide desorption and agitation for ten minutes using an iron-containing reagent. All cleaner operations were carried out in the range of pH values of 5.6 to 5.8. In the separation of the bulk copper-lead concentrate, an iron-containing powdered reagent based on iron oxides was tested. This reagent is used to depress lead minerals, which eliminates the sulfite technology of selective separation of non-ferrous sulfides, as well as reduces the reagent consumption. Effective indicators have been established for the separation of copper-lead concentrate using an iron-containing reagent based on magnetite:
— the mass fraction of copper of 23.6 % with the recovery of 81.3 % for the copper concentrate;
— the mass fraction of lead 36.3 % with the recovery of 93.1 % for the lead concentrate.
The use of a natural iron-based reagent allows completely eliminating the sulfite technology and improving the recovery for the lead concentrate by an average of 3.0 %. Respective laboratory studies have demonstrated the expediency of using this magnetite-based reagent instead of sodium sulfite and iron sulfate in the processing of polymetallic ores.

keywords Processing, polymetallic ore, flotation, iron-containing reagent, recovery, separation, copper concentrate, lead concentrate

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