National University of Science and Technology MISiS (Russia):

Nikolaev A. A., Ph. D. in Engineering Sciences, Associate Professor, Associate Professor, nikolaevopr@misis.ru
Soe Thu, Postgraduate Student

Goryachev B. E., Doctor of Engineering Sciences, Professor, Professor, beg@misis.ru

The paper presents the results of the Gayskoye deposit sulfide ore copper-zinc flotation. The collecting reagents used were as follows: potassium butyl xanthate; sodium butyl dithiophosphate (Af); collector, composed of thionocarbamate-dithiophosphate (CDT) mixture; and аlso mixtures of these collectors in different ratios. Copper-zinc concentrate production efficiency was calculated by the flotation experiments’ results. Hancock criteria were determined, as well as copper and zinc total recovery into concentrate (froth product), and also copper and zinc recovery into copper-zinc concentrate, taking into consideration pyrite recovery. Kinetic criteria of copper-zinc flotation process selectivity were calculated as ratios of copper-and-iron and zinc-and-iron flotation rates constants. Sulfide copper-zinc ore flotation selectivity criterion was proposed taking into consideration copper and zinc processing recovery into copper-zinc concentrate and flotation recovery kinetics. It was revealed that differences between processing and kinetic flotation beneficiation results were observed with different compositions of collectors. The highest selectivity criterion in the Gayskoye deposit sulfide ore copper-zinc flotation was achieved with application of Af–CDT composition of collectors.

The work was performed with the financial support from the Federal Targeted Programme «Research and development in the trends of priority growth areas of the science and technology sector of the Russian Federation for 2014–2020», Project RFMEF157514X0085.

1. Chanturiya V. A., Vigdergauz V. E. Elektrokhimiya sulfidov. Teoriya i praktika flotatsii (Electrochemistry of sulfides. Theory and practice of flotation). Moscow, Publishing House «Ruda i Metally», 2008, 272 pp.
2. Ryaboy V. I., Shenderovich V. A., Kretov V. P. Application of aerofloats in flotation of ores. Obogashchenie Rud = Mineral Processing, 2005, No. 6, pp. 43–44.
3. Goryachev B. E., Nikolaev A. A. Principles of kinetic «ion» modeling of adsorptive collector layer at the surface of nonferrous heavy metal sulfides. Fiziko-tekhnicheskiye Problemy Razrabotki Poleznykh Iskopayemykh = Journal of Mining Science, 2013, No. 3, pp. 169–178.
4. Fairthorne G., Fornasiero D., Ralston J. Interaction of thionocarbamate and thiourea collectors with sulphide minerals: a flotation and adsorption study. International Journal of Mineral Processing, 1997, Vol. 50, Iss. 4, pp. 227–242.
5. Wiese J., Harris P., Bradshaw D. Investigation of the role and interactions of a dithiophosphate collector in the flotation of sulphides from the Merensky reef. Minerals Engineering, 2005, Vol. 18, Iss. 8, pp. 791–800.
6. Ryaboy V. I., Kretov V. P., Smirnova V. Yu. Using dialkyldithiophosphates in the flotation of sulphide ores. IX Kongress obogatiteley stran SNG. Sbornik dokladov (Reports of the IX Congress of CIS dressers). Vol. 2. Moscow, MISiS, 2013, pp. 496–497.
7. Glembotskiy A. V., Livshits A. K., Sologub D. V. The study of some peculiarities of the interaction dialkylthiocarbamates with sulfide minerals. Izvestiya Vuzov. Tsvetnaya Metallurgiya = Universities Proceedings. Nonferrous Metallurgy, 1971, No. 1, pp. 12–14.
8. McFadzean B., Castelyn D. G., O'Connor C. T. The effect of mixed thiol collectors on the flotation of galena. Minerals Engineering, 2012, Vol. 36–38, pp. 211–218.
9. Hangone G., Bradshaw D. J., Ekmekci Z. Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures. The Journal of the South African Institute of Mining and Metallurgy, 2005, Vol. 105, pp. 199–206.
10. McFadzean B., Mhlanga S. S., O’Connor C. T. The effect of thiol collector mixtures on the flotation of pyrite and galena. Minerals Engineering, 2013, Vol. 50–51, pp. 121–129.
11. Bocharov V. A., Ignatkina V. A., Alexeychuk D. A. New scientific approaches to the selection of tracks sulfhydryl collectors, their mechanism of action and justification of the conditions of selective flotation of sulfide minerals. Gorny Informatsionno-analiticheskiy Byulleten (Nauchno-Teknicheskii Zhurnal) = Mining Informational and Analytical Bulletin (Scientific and Technical Journal), 2013, No. 10, pp. 59–66.
12. Strizhko V. S., Goryachev B. E., Ulasyuk S. M. Basic kinetic parameters of the process of electrochemical oxidation of pyrite in alkaline solutions. Povysheniye polnoty i kompleksnosti izvlecheniya tsennykh komponentov pri pererabotke mineralnogo syrya (Increasing the completeness and complexity of extraction of valuable components in the processing of mineral raw materials). Moscow, IPKON AN SSSR, 1986, pp. 34–40.
13. Bocharov V. A., Ignatkina V. A. Tekhnologiya obogashcheniya poleznykh iskopayemykh v 2 tomakh (Technology of mineral processing in 2 volumes). Vol. 1: Mineral and raw material base of mineral resources and mineral processing of non-ferrous ores and alluvial deposits of rare metals. Moscow, Publishing House «Ruda i Metally», 2007, 472 pp.
14. Mitrofanov S. I. Selektivnaya flotatsiya (Selective flotation). Moscow, Nedra, 1967, 584 pp.
15. Goryachev B. E., Nikolaev A. A., Lyakisheva L. N. Electrochemical kinetics of galena — sulphydryl collector interaction as the basis to develop ion models of sorption-layer formation on the surface of sulphide minerals. Fiziko-tekhnicheskiye Problemy Razrabotki Poleznykh Iskopayemykh = Journal of Mining Science, 2011, No. 3, pp. 97–104.
16. Goryachev B. E., Naing Linoo, Nikolaev A. A. Peculiarities of flotation of pyrite of one of copper-zinc deposits of Ural region by potassium butyl xanthate and sodium dithiophosphate. Tsvetnye Metally = Non-ferrous Metals. 2014, No. 6, pp. 16–22.
17. Barskiy L. A., Plaksin I. N. Kriterii optimizatsii razdelitelnykh protsessov (Criteria for optimization of separation processes). Moscow, Nauka, 1967, 116 pp.
18. Rubinshtein Yu. B., Filippov Yu. A. Kinetika flotatsii (Kinetics of flotation). Moscow, Nedra, 1980, 375 pp.
19. Beloglazov K. F. Zakonomernosti flotatsionnogo protsessa (Regularities of the flotation process). Moscow, Metallurgizdat, 1947, 114 pp.