Mining Institute of National University of Science and Technology “MISiS”, Moscow, Russia:

V. A. Bocharov, Professor, Chair of Concentration and Processing of Minerals and Anthropogenic Raw Materials
V. A. Ignatkina, Professor, Chair of Concentration and Processing of Minerals and Anthropogenic Raw Materials

E-mail (common): woda@mail.ru

This article gives the analytical data for research of technological properties of pyrrhotine during flotation of pyrrhotine-containing non-ferrous metal ores. Pyrrhotine, containing in massive pyrite copper-zinc ores, considerably differs from one, containing in copper-nickel ores. Optimal modes of selective depression of pyrrhotine and pyrite during flotation of pyrite copper-zinc ores of Ural region are defined, providing the decreasing of pyrrhotine and pyrite flotability during ore flotation and selection of copperzinc concentrate. The developed technological mode, combining aeration and the found selective collector ratio, make possible the considerable decreasing of iron sulfide flotability, improvement of concentrate quality and selective extraction of copper and zinc. Aeration before copper flotation in the beginning of ore cycle allows to increase the copper content in “copper head” concentrate. The developed mode changes the kinetics of flotability of chalcopyrite, pyrrhotine and pyrite in bulk copper-zinc and selective flotation, which provides the increasing of contrast and flotation activity of separated minerals.
Research was carried out with the support of Russian Scientific fund (project № 14-17-00393).

1. Mitrofanov S. I. Selektivnaya flotatsiya (Selective flotation). Moscow : Nedra, 1964. 563 p.
2. Abramov A. A. Flotatsiya. Fiziko-khimicheskoe modelirovanie protsessov. Tom 6 (Flotation. Physical-chemical modeling of processes. Volume 6). Moscow : Gornaya kniga, 2010. 606 p.
3. Abramov A. A., Safin Kh. Sh., Kommisarov A. S. Vliyanie pH i velichiny okislitelno-vosstanovitelnogo potentsiala rastvora na sostoyanie poverkhnosti pirrotina (Influence of pH and value of oxidation-reduction potential of solution on the state of pyrrhotine surface). Sbornik trudov Magnitogorskogo gorno-metallurgicheskogo instituta (Collection of proceedings of Magnitogorsk mining-metallurgical institute). 1973. Iss. 122. pp. 80–85.
4. Abramov A. A., Safin Kh. Sh., Kommisarov A. S. Sostoyanie poverkhnosti sulfidov zheleza (State of iron sulfide surface). Sbornik trudov “Obogashchenie rud” (Collection of proceedings “Ore concentration”). Irkutsk, 1973. Iss. 10. pp. 15–21.
5. Avdokhin V. M., Abramov A. A. Okislenie sulfidnykh mineralov v protsesse obogashcheniya (Oxidation of sulfide minerals in concentration process). Moscow : Nedra, 1989. 232 p.
6. Volkenshteyn F. F. Fiziko-khimiya poverkhnosti poluprovodnikov (Physics and chemistry of semiconductor surface). Moscow : Nauka, 1973. 399 p.
7. Illyuvieva G. V. Issledovanie protsessa vzaimodeystviya pirrotina s shchelochnymi rastvorami (Research of the process of pyrrhotine interaction with alkaline solutions). Zapiski Leningradskogo Gornogo Instituta = Proceedings of Leningrad Mining Institute. 1953. Vol. 32, Iss. 3. pp. 163–181.
8. Kakovskiy I. A., Bogdanov O. S., Golman A. M. Sulfgidrilnye reagenty (Sulfhydryl reagents). V knige: Fiziko-khimicheskie osnovy teorii flotatsii (In the book: Physical-chemical basis of flotation theory). Moscow : Nauka, 1983. pp. 102–135.
9. Glazunov L. A. Nekotorye voprosy teorii flotatsii rud tsvetnykh metallov (Some issues of theory of non-ferrous metal ore flotation). Teoriya protsessov proizvodstva tyazhelykh tsvetnykh metallov : sbornik trudov Gintsvetmeta (Theory of production processes of heavy non-ferrous metals : collection of proceedings of “Gintsvetment” institute). Moscow, 1989. pp. 169–170.
10. Bocharov V. A. Mekhanizm okisleniya pirita i osobennosti flotatsii sulfidnykh mineralov medno-tsinkovykh rud (Mechanism of oxidation of pyrite and peculiarities of flotation of sulfide minerals of copper-zinc ores). Teoriya protsessov proizvodstva tyazhelykh tsvetnykh metallov : sbornik trudov “Gintsvetmeta” (Theory of production processes of heavy non-ferrous metals : collection of proceedings of “Gintsvetmet” institute). Moscow, 1989. pp. 160–165.
11. Kosikov E. M., Kakovskiy I. A., Vershinin E. A. Okislenie pirita kislorodom v rastvore (Pyrite oxidation in solution). Obogashchenie Rud = Mineral processing. 1974. No. 4. pp. 34–37.
12. Bocharov V. A., Samozhnikov V. P. Zashchitnaya rol modifikatorov v reaktsiyakh okisleniya zheleza pri sharovom izmelchenii sulfidnykh rud (Protective role of modifiers in iron oxidation reactions during spherical grinding of sulfide ores). Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh = Journal of Mining Science. 1977. No. 1. pp. 66–69.
13. Bocharov V. A., Ignatkina V. A., Akseychuk D. A. Vliyanie mineralnogo sostava sulfidov i ikh modifikatsiy na vybor skhemy i sobirateley selektivnoy flotatsii rud tsvetnykh metallov (Influence of mineral composition of sulfides and their modifications on the choice of scheme and collectors of selective flotation of non-ferrous metal ores). Izvestiya vuzov. Tsvetnaya metallur giya = Russian Journal of Non-Ferrous Metals. 2012. No. 4. pp. 3–11.
14. Bocharov V. A., Ignatkina V. A. Problemy razdeleniya mineralnykh kompleksov pri pererabotke upornykh massivnykh rud tsvetnykh metallov (Problems of separation of mineral complexes during the processing of refractory massive non-ferrous metal ores). Tsvetnye Metally = Non-ferrous metals. 2014. No. 5. pp. 16–23.
15. Abramov A. A., Leonov S. B., Sorokin M. M. Khimiya flotatsionnykh sistem (Chemistry of flotation systems). Moscow : Nedra, 1982. 312 p.
16. Chanturiya V. A., Vigdergauz V. E. Elektrokhimiya sulfidov. Teoriya i praktika (Electrochemistry of sulfides. Theory and practice). Moscow : Nauka, 1993. 206 p.
17. Shafaev R. Sh. Ob osobennostyakh gidrofobiziruyushchego deystviya kisloroda na poverkhnost sulfidnykh mineralov (About peculiarities of water-repellent activity of oxygen on sulfide mineral surface). Doklady Akademii Nauk SSSR = Reports of USSR Academy of Sciences. 1960. Vol. 135. pp. 139–143.
18. Khudyakov I. F., Klyayn S. E., Ageev N. G. Metallurgiya medi, nikelya, soputstvuyushchikh elementov (Metallurgy of copper, nickel and associated elements). Moscow : Metallurgiya, 1993. 431 p.
19. Bocharov V. A., Goryachkin V. I., Ryskin M. Ya., Shcherbakov V. A. Kombinirovannye malootkhodnye tekhnologii — put povysheniya kompleksnogo ispolzovaniya medno-tsinkovoy rudy (Combined low waste technologies — way to increasing of complex use of copper-zinc ore). Tsvetnye Metally = Non-ferrous metals. 1990. No. 7. pp. 65–69.
20. Kakovskiy I. A. K voprosu o kinetike okisleniya smesi sulfidnykh mineralov kislorodom v vodnykh rastvorakh (To the issue about kinetics of oxidation of sulfide mineral mixture in water solutions). Obogashchenie Rud = Mineral processing. 1980. No. 3. pp. 3–6.
21. Chanturiya E. L. Mineralogo-tekhnologicheskie raznovidnosti pirita Gayskogo mestorozhdeniya (Mineral-technological varieties of Gai deposit pyrite). Gornyy informatsionno-analiticheskiy byulleten = Mining Information-Analytical Bulletin. 2005. No. 12. pp. 263–273.
22. Matveeva P. N., Gromova N. K., Lantsova N. B. et al. Nauchnye obosnovaniya primeneniya rastitelnykh modifikatorov flotatsii mineralov blagorodnykh metallov iz upornykh rud (Scientific substantiation of application of vegetal modifiers of flotation of noble metal minerals from refractory ores). Kongress obogatiteley stran SNG : sbornik materialov (Congress of dressers of CIS countries : collection of materials). Moscow : MISiS, 2015. Vol. 1. pp. 132–134.
23. Ignatkina V. A., Bocharov V.A., Dyachkov F. G. Issledovanie svoystv diizobutilovogo ditiofosfinata pri flotatsii sulfidov (Research of diisobutyl dithiophosphate properties during sulfide flotation). Fiziko-tekhnicheskie problemy razrabotki poleznykh iskopaemykh = Journal of Mining Science. 2013. No. 5. pp. 1–7.
24. Gzogyan T. N., Gzogyan S. R. Izuchenie oksidov i sulfidov zheleza metodom spektroskopii i termicheskogo analiza (Research of iron oxides and sulfides by spectroscopy and thermal analysis). Kongress obogatiteley stran SNG : sbornik trudov (Congress of concentrators of CIS countries : collection of proceedings). Moscow : MISiS, 2015. Vol. 1. pp. 128–132.
25. Getman V. V., Ganchich A. S. Selektivnoe vzaimodeystvie termomorfnykh polimerov s blagorodnymi metallami (Selective interaction of thermomorphic polymers with noble metals). Plaksinskie chteniya (Plaksin Readings). Petrozavodsk : Karelian Research Center of Russian Academy of Sciences, 2012. pp. 207–209.
26. Miller J. D., Li J., Davidtz J. C.,Vos F. A review of pyrrhotite flotation chemistry in the processing of PGM ores. Minerals Engineering. 2005. Vol. 18, No. 8. pp. 855–865.
27. Sazonov G. T. Sostoyanie metallurgicheskoy promyshlennosti Rossiyskoy Federatsii (State of metallurgical industry of Russian Federation). Obogashchenie Rud = Mineral processing. 2010. No. 6. pp. 3–8.
28. Blatov I. A. Obogashchenie medno-nikelevykh rud (Concentration of coppernickel ores). Moscow : “Ore and Metals” Publishing House, 1998. 291 p.
29. Izoitko V. M. Tekhnologicheskaya mineralogiya i otsenka rud (Technological mineralogy and ore evaluation). Saint Petersburg : Nauka, 1997. 581 p.
30. Ryaboy V. K., Asonchik K. M., Polkin V. N. et al. Povyshenie kachestva sobirateley pri flotatsii medno- tsinkovykh rud (Increasing of collector quality during flotation of copper-zinc ores). Obogashchenie Rud = Mineral processing. 2008. No. 3. pp. 7–9.