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Oddziaływania galwaniczne minerałów siarczkowych podczas ługowania koncentratu flotacyjnego z ZWR Lubin
Języki publikacji
Abstrakty
Measurements of the rest potential of copper sulfide electrodes and pyrite, present in copper ores and concentrates from Lubin Concentrator, have been carried out. Moreover, measurements of sulfide-sulfide contact potential and galvanic current were also performed using deoxygenated sulphuric acid solutions as well as the solutions saturated with oxygen and containing Fe(III) ions. Significant galvanic interactions were observed for sulfide couples exhibiting high potential difference, particularly when copper sulfides were short-circuited with pyrite. According to mineralogical data for Lubin polymineral copper concentrate, chalcocite and bornite are dominating with chalcopyrite and covellite as minor copper minerals. Expected is advantageous affect of pyrite in promoting the kinetics of copper leaching from Lubin concentrate as a result of observed galvanic interactions between pyrite and copper sulfides.
Przedstawiono wyniki pomiarów potencjału spoczynkowego elektrod wykonanych z siarczków miedzi i pirytu, obecnych w rudach i koncentratach ZWR Lubin. Ponadto, wykonano pomiary potencjałów zwarcia układów siarczek-siarczek oraz prądów zwarcia wybranych par siarczków w odtlenionych roztworach kwasu siarkowego oraz w roztworach natlenionych i zawierających jony Fe(III). Obserwowano wyraźne oddziaływania między siarczkami różniącymi się znacznie wartością potencjału spoczynkowego, zwłaszcza, gdy siarczki miedzi były w kontakcie z pirytem. Zgodnie z danymi mineralogicznymi dla koncentratu Lubin chalkozyn i bornit są dominującymi siarczkami miedzi, natomiast zawartość chalkopirytu i covellinu jest wyraźnie niższa. Można stąd oczekiwać korzystnego dla ługowania wpływu oddziaływania pirytu na ługowanie przejawiający się wzrostem szybkości ługowania miedzi w wyniku oddziaływań galwanicznych w układach piryt - siarczki miedzi.
Rocznik
Tom
Strony
21--34
Opis fizyczny
Bibliogr. 31 poz.
Twórcy
autor
autor
- Wroclaw University of Technology, Faculty of Chemistry, Wybrzeze Wyspiańskiego 27, 50-340 Wroclaw, Poland, tomasz.chmielewski@pwr.wroc.pl
Bibliografia
- 1. BIEGLER T., RAND O.A.J., WOODS R., 1977: Oxygen reduction on sulfide minerals. In: Trends In Electrochemistry, (Bockris J.O.M., Rand D.A.J. and Welch B.J., Eds.), Plenum Press, N.Y.
- 2. CHANTURIJA V.A., VIGDERGAUZ V.E. 2009, Electrochemistry of Sulfides, Theory and Practice of Flotation, Ore and Metals, Moscow 2009.
- 3. CHMIELEWSKI T, 2009. Atmospheric leaching of shale middlings as an alternative for technological alterations at the Lubin Concentartor, Proceedings of XII Seminar „Hydrometallurgical Methods and Production Development at KGHM Polska Miedź SA”, Lubin 17 February 2009: 38-54 (in Polish).
- 4. CHMIELEWSKI T., 2007: Atmospheric leaching of shale by-product from Lubin concentrator, Physicochem. Probl. Miner. Process., 41: 337-348.
- 5. CHMIELEWSKI T., CHAREWICZ W., 2006, Hydrometallurgical processing of shale middlings from technological circuits of Lubin Concentrator, In: Perspectives for applying bioleaching Technology to process shale-bearing copper ores, BIOPROCOP’06, Lubin 2006, KGHM Cuprum, Wrocław 2006: 125-145.
- 6. DIXON D.G., MAYNE D.D., 2007: Galvanox – a novel galvanically assisted atmospheric leaching technology for copper concentrates, Proc. Copper/Cobre 2007 Conference, Toronto (Canada), Riveros P., et al., eds., Vol. IV (1), CIM Montreal, Canada: 191.
- 7. GROTOWSKI A., 2007: Possibilies and perspectives for implementation of hydrometallurgical methods in KGHM Polska Miedz S.A., Proc. VIII International Conference on Non-ferrous Ore Processing, Wojcieszyce (Poland), May 21-23, KGHM Cuprum Wroclaw 2007, 29-46.
- 8. HISKEY , J.B., WADSWORTH, M.E., 1981. In: M. Kuhn (Ed.), Process and fundamental considerations in selected hydrometallurgical systems, SME-AIME, New York: 303.
- 9. HOLMES P.R., CRUNDWELL F.K., 1995: Kinetic aspects of galvanic interactions between minerale during dissolution, Hydrometallurgy 39: 353-375.
- 10. KGHM 2007, Monograph of KGHM “Polska Miedz” SA,, Piestrzynski A., Ed., KGHM Cuprum CBR, Wroclaw.
- 11. KGHM, 2009, unpublished data.
- 12. KOCABAG D., SMITH M.R., 1985: The effect of grinding media and galvanic interactions upon the flotation of sulfide minerals, in: Proc. Symp “Complex Sulfides – Processing of Ores, Concentrates and By-products”, (Zunkel A.D., et al Eds.), WBD, Indialantic, USA: 55-77 .
- 13. KONIECZNY A, KASIŃSKA-PILUT E, PILUT R., 2009: Technological and technical problems in mineral processing of Polish copper ores at Division of Concentrators KGHM “Polska Miedz” SA,
- 14. IX International Conference on Non-Ferrous Ore Processing, ICNOP Lądek Zdrój, 18 – 20 May 2009:11-21 (in Polish).
- 15. KONOPACKA Z., LUSZCZKIEWICZ A., CHMIELEWSKI T., 2007: Effect of non-oxidative leaching on flotation efficiency of Lubin Concentrator Middlings, Physicochem. Probl. Miner. Process., 41: 275-289.
- 16. KONSTANTYNOWICZ-ZIELIŃSKA J. 1990, Petrography and genesis of copper-bearing shales of Foresudetic Monocline, Rudy i Metale Nieżelazne, R.35(5-6): 128-133 (in Polish).
- 17. KOWALCZUK P. B. and CHMIELEWSKI T. 2010. Changes of electrode potential in the non-oxidative leaching, Physicochem. Probl. Miner. Process., 44 (2010): 115-126.
- 18. KUBACZ N., SKORUPSKA B. 2007, Evaluation of the effect of organic carbon on concentration and smelting processes. Proc. VIII International Conference on Non-ferrous Ore Processing, Wojcieszyce (Poland), May 21-23, KGHM Cuprum Wroclaw 2007: 157-166.
- 19. ŁUSZCZKIEWICZ A. 2004, Analysis and evaluation of floatability of the ore exhibiting elevated content of black shale. Report of Investigations, Archive of Institute of Mining Engineering, Laboratory of Mineral Processing, Wroclaw University of Technology, Wrocław, October 2004
- 20. ŁUSZCZKIEWICZ A., 2000, Utilisation of black shale copper ore fraction from Lubin – Glogow Copper Basin, in: Proc. Conf. “Modern Aspects of Coper Ore Processing in Poland”, Polkowice, 16 November 2000, Committee of Mining, Polish Academy of Sciences and KGHM Polska Miedź SA: 137-156.
- 21. ŁUSZCZKIEWICZ A., CHMIELEWSKI T., 2006, Technology of chemical modification of by-products in copper sulphidic ore flotation systems, Rudy i Metale Niezelazne, R-51: 2-10.
- 22. ŁUSZCZKIEWICZ A., DRZYMAŁA J., 2009. Possibility of reduction of lead, arsenic and organic carbon content in copper concentrates. Physicochem. Probl. Miner. Process., 44th Seminar, Niepołomice, Plenary lecture (in Polish), unpublished.
- 23. ŁUSZCZKIEWICZ A.., KONOPACKA Z., DRZYMALA J., 2006, Flotation of black shales from Lubin copper ores. in: Perspectives for applying bioleaching Technology to process shale-bearing copper ores, BIOPROCOP’06, Lubin 2006, KGHM Cuprum, Wrocław 200, 29-47.
- 24. MAJIMA H., PETERS E. 1968: Electrochemistry of sulfide dissolution in hydrometallurgical systems, Proc. Int. Mn. Proc. Congress., Leningrad: 13.
- 25. MAJIMA H., 1969: How oxidation affects selective flotation of complex sulfide ores, Can. Met. Qart., 8(3): 111-117.
- 26. MEHTA, A.P., MURR, L.E., 1983. Fundamental studies of the contribution of galvanic interaction to acid-bacterial leaching of mixed metal sulfides. Hydrometallurgy, 9: 235-256.
- 27. NOWAK P., KRAUSS E., POMIANOWSKI A. 1984: The electrochemical characteristics of the galvanic corrosion of sulfide minerals in short-circuited model galvanic cell,, Hydrometallurgy, 12, 95-110.
- 28. PARAMGURU R.K., 2002: Electrochemical Aspects in Some of the Hydrometallurgical Processes, Mineral Processing and Extractive Metallurgy Review, 23: 65-100.
- 29. PETERS E., MAJIMA H., 1968: Electrochemical reactions of pyrite in acid perchlorate solutions, Can. Met. Qart., 7: 111-117.
- 30. RYDZEWSKI A., ŚLIWIŃSKI W., 2007, Lithology of deposit rocks. In: Monograph of KGHM “Polska Miedz” SA, Piestrzynski A., Ed., KGHM Cuprum CBR, Wroclaw, Lubin, 111-115.
- 31. TOMASZEWSKI J., 1985, Prolems of rational utilization of copper polymetallic ores from Fore-sudetic Monocline, Physicochem. Probl. Miner. Process., 17: 131-141 (in Polish).
Typ dokumentu
Bibliografia
Identyfikator YADDA
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