Polyacrylamides as co-depressant in hematite and quartz microflotation

Ferreira, Kelly Cristina; Peres, Antônio Eduardo Clark

doi:10.1590/0370-44672020740105

Cited by 1 publication

(1 citation statement)

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“…The main difficulties are related to the processing of the slurry part of the tailings, which is to a great extent enriched with non-ferrous, rare and precious metals [ [13], [14], [15], [16], [17]].…”

Section: Introductionmentioning

confidence: 99%

Flotation processing of copper-containing technogenic raw materials using a composite flotation reagent

Semushkina¹,

Nessipbay²,

Turysbekov³

et al. 2022

KIMS/CUMR/MShKP

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The article presents the results of laboratory research on the possibility of flotation processing of copper-containing technogenic raw materials. Studies were performed using a sample of copper-containing tailings obtained after the processing of copper ore from the Kazakhstan deposit and a composite flotation reagent. The application of a combination of various collectors allows for raising technological indicators of flotation. The purpose of the research is the increase extraction of copper at flotation of copper-containing technogenic raw materials with the application of a composite reagent. The studied sample of tailings contains 0.23% of copper. A mixture of sodium butyl xanthate and thionocarbamate in the ratio of 1:1 was used as a composite flotation reagent. Parameters of flotation of copper-containing tailings were worked out: degree of regrinding, charges of sodium butyl xanthate, blowing agent T-92, and a composite reagent. Composite flotation reagent was fed into the flotation process of copper-containing tailings in the form of emulsion produced in a T 18 digital ULTRA-TURRAX dispersant. The optimal emulsification time of the composite flotation reagent was 1 min. Without emulsification in the composite reagent the percentage of particles smaller than 1.192 µm is 55.047%. After emulsification of the composite reagent for 1 minute, the percentage of particles smaller than 1.192 μm is 91.134%. In optimum basic mode the rough copper concentrate with a copper content of 4.2% was obtained with the extraction of 61.56%. With the use of a composite reagent, a blister copper concentrate with a copper content of 4.5% and a recovery of 66.54% was obtained. Extraction of copper increases by 4,98%.

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Section: Introductionmentioning

confidence: 99%