Technological evaluation of reagent regimes for flotation of gold-bearing antimony ore

The subject of research is the circuit of flotation of gold from complex gold-bearing antimony ore from a deposit in West Siberia. The test ore features a moderate content of sulfides represented mostly by antimonite, arsenopyite, pyrite–marcasite and pyrrhotine, while the rock-forming minerals are quartz and mica–hydrous mica. It is shown that xanthates can be arranged in the ascending order of their efficiency relative to the test pulp as follows: potassium butyl xanthate–potassium amyl xanthate–potassium isobutyl xanthate–sodium isopropyl xanthate. The best results are achieved with isopropyl xanthate: the loss of gold with flotation tailings totals 1.92%, which is lower than in the standard reagent regime adopted at the factory by 5.35%. It is found that the least loss of gold with flotation tailings takes place when factory’s sodium isobutyl Aeroflot is replaced by BTF-1711 which is a water solution of sodium dialkyl dithiophosphate: as compared with the factory’s reagent regime, the decrease in the loss of gold with flotation tailings totals – 2,67%, and the gold content of the tailings reduces from 0.34 to 0.22 g/t.

Algebraistova N. K., Prokopev I. V., Ananenko E. S., Kinyakin A. I. Technological evaluation of reagent regimes for flotation of gold-bearing antimony ore. MIAB. Mining Inf. Anal. Bull. 2024;(4):145-154. [In Russ]. DOI: 10.25018/0236_1493_2024_4_0_145.

N.K. Algebraistova¹, Cand. Sci. (Eng.), Assistant Professor, e-mail: algebraistova@mail.ru, ORCID ID: 0000-0002-0185-8389,
I.V. Prokopev, Cand. Sci. (Eng.), Assistant Professor, M.K. Ammosov North-Eastern Federal University, 677000, Yakutsk, Republic of Sakha, Russia, e-mail: prokopiev.iv@yandex.ru, ORCID ID: 0000-0002-9230-6415,
E.S. Ananenko¹, Graduate Student, e-mail: ananenkoes@inbox.ru, ORCID ID: 0000-0002-1299-5397,
A.I. Kinyakin¹, Graduate Student, e-mail: mrak81083@mail.ru, ORCID ID: 0000-0002-0040-4473,
¹ Siberian Federal University, 660025, Krasnoyarsk, Russia.

E.S. Ananenko, e-mail: ananenkoes@inbox.ru.

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