Complex Processing of Copper Smelting Slags with Obtaining of Cast Iron Grinding Media and Proppants
Abstract
The Ural region has a large number of metallurgical companies. The extraction of metals from ore is always accompanied by the accumulation of wastes. Currently, most of the wastes are stored in dumps and storage facilities forming technogenic deposits. One such that occupies huge areas is copper slag from the copper-smelting production. According to current estimations, about 2.2 tons of slag is formed for each ton of copper produced and about 24 million tons are produced annually [1]. In general, a copper slag contains about 35-45% iron and 0.4-0.5 copper, which indicates that this is a valuable secondary resource for recycling and utilization [33]. However, more than 80% of copper slag is not utilized, which makes it possible to consider this waste not only as a valuable material, but also as a potential hazard for the environment; it contaminates the soil and water with heavy elements [8]. Currently, only small amounts of the waste are recycled. In addition, technologies do not allow the complete extraction of valuable elements. This offers potential for the development of new highly efficient technologies for processing copper smelting wastes with extraction of valuable elements such as iron (Fe). Improvement of Fe quality requires a decrease in non-ferrous metal content, especially Cu. In recent years, extensive research was directed at the extraction of valuable materials from copper slags by high-temperature firing of copper conglomerates with subsequent magnetic separation or leaching of non-ferrous metals. However, these studies do not allow the complete processing of copper smelting slags. This work studies the production of iron-containing briquettes from copper-smelting slags, and their subsequent processing to obtain valuable products for metallurgical and oil companies.
Keywords: briquette, reduction, cast iron, proppants
References
[1] Sanakulov, K. S. and Hasanov, A. S. (2007). Copper Slag Processing. Tashkent: Fan, pp. 238.
[2] Busolic, D., et al. (2011). Recovery of Iron from Copper Flash Smelting Slags. Mineral Processing and Extractive Metallurgy, issue 120(1), pp. 32-36.
[3] Roshchin, V. E. and Potapov, K. O. (2015). Copper Sludge Utilization by Pyrometallurgical Extraction of Iron. Resource-Saving Technologies in Ore Dressing and Non-Ferrous Metallurgy. Presented at Materials of the International Scientific and Technical Conference. Karaganda, Kazakstan. Almaty: TOO «Arkon», pp.218-220.
[4] Kho, T. S., et al. (2006). Cobalt Distribution during Copper Matte Smelting. Metallurgical and Materials Transactions B, issue 37(2), pp. 209-214.
[5] Chen,C.,etal.(2010).ThermodynamicModelingofArsenicinCopperSmeltingProcesses.Metallurgical and Materials Transactions B, issue 41(6), pp. 1175-1185.
[6] Desai, B., et al. (2016, May). Behavior of Selenium in Copper Smelting Slag, Advances in Molten Slags, Fluxes, and Salts. Presented at Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts. Seattle, Washington, USA. Springer, Cham. 5. 2016, pp. 677-685.
[7] Nadirov, R., et al. (2017). Copper Smelter Slag Treatment by Ammonia Solution: Leaching Process Optimization. Journal of Central South University, issue 24(12), pp. 2799 2804.
[8] Sukla, L. B. et al. (1992). Leaching of Copper Converter Slag with Aspergillus Niger Culture Filtrate. Biometals, issue 5(3), pp. 169-172.
[9] Muravyov, M. I. and Fomchenko, N. V. (2013). Leaching of Nonferrous Metals from Copper Converter Slag with Application of Acidophilic Microorganisms. Applied Biochemistry and Microbiology, issue 49 (6), pp. 562-569.
[10] Prince, S., et al. (2016). Characterization and Recovery of Values from Waste Copper Smelting Slag. Advances in Molten Slags, Fluxes, and Salts. Presented at Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts. Seattle, Washington, USA. Springer, Cham. 5. 2016, pp. 889-898.
[11] Sun, S., et al. (2017, February). Recovery of Cobalt from Copper Converter Slag by Reduction- Sulfurization Smelting at High Temperature. Presented at 8th International Symposium on High- Temperature Metallurgical Processing. Springer, Cham, 2. 2017, pp. 459-468.
[12] Gonzalez, C., et al. (2005). Reduction of Chilean Copper Slags: A Case of Waste Management Project. Scandinavian Journal of Metallurgy, issue 34 (2), pp. 143-149.
[13] Li, K. Q., et al. (2013). Recovery of Iron From Copper Slag by Deep Reduction and Magnetic Beneficiation. International Journal of Minerals, Metallurgy, and Materials, issue 20 (11), pp. 1035-1041.
[14] Potapov, K. O., et al. (2014, June). Pyrometallurgical Extraction of Iron from Copper Smelting Production Waste. Presented at Proceedings of the Congress with International Studies and Elements of Schools for Young Scientists «Fundamental Research and Experimental Development of Processes and Utilization of Technogenic Formations», Ekaterinburg, Russia. Ekaterinburg: UrO RAN, 2014, pp. 544- 548.
[15] Potapov,K.O.,etal.(2015,October).ExtractionofIronfromtheCopperSmelterSlagfortheConstruction Assortment Steel Production. Presented at Modern Problems of Steel Electrometallurgy: Materials of the XVI International Conference, Magnitogorsk. Chelyabinsk: Izdatel’skij centr YUUrGU, pp. 196-201.
[16] Shiryaeva,E.V.,etal.(2015).TheEffectofLowAlkalineRedMudonthePropertiesandMicrostructureof the Sinter from Charge Materials of the Ural Steel OJSC Charge Materials. News of higher educational institutions. Ferrous metallurgy, vol. 57, issue 1, pp. 14-19.
[17] Shiryaeva, E. V., et al. (2015). The Effect of Low Alkaline Red Mud on the Composition and Structure of the Sinter Mine from Iron Ore Concentrates of Various Genesis. News of Higher Educational Institutions. Ferrous Metallurgy, vol. 57, issue 9, pp. 13-17.
[18] Kozlov, P. A., et al. (2015, June). Development and industrial implementation of integrated and resource-saving technologies and equipment for the disposal of industrial waste from ferrous and non-ferrous metallurgy with the extraction of zinc, lead, tin, copper and iron into commercial products. Presented at the Proceedings of the scientific-practical conference ”Prospects for the development of metallurgy and mechanical engineering with the use of completed fundamental research and R&D”, Yekaterinburg, Russia. Yekaterinburg: ”Ural’skiy rabochiy”, pp. 29-32.
[19] Vyatkin, V. N., et al. (2015). Development of Technology for the Extraction of Zinc, Tin and Lead from Secondary Industrial Raw Materials. Ecology and Industry of Russia, vol. 19, issue 9, pp. 17-19.
[20] Kozlov, P. A., et al. (2015) Research and Development of Pyrometallurgical Technology for Processing from the Copper Industry Waste with the Extraction of Zinc, Lead and Tin. Non-ferrous metals, issue 5(869), pp. 46-50.
[21] Norman, D. H. (2010). Oil Geology, Exploration, Drilling and Production. Moscow: Olimp biznes, pp. 491.
[22] Forest, G. (2011). Oil Production. Moscow: Olympus business, pp. 293.
[23] Roshchin, V. E. and Roshchin, A. V. (2013, June). Physics of Chemical Reactions of the Formation and Reduction of Metals in Solid Phase. Presented at Proceedings 10th International Scientific and Technical Conference ”Modern Metallic Materials and Technologies” (SMMT’2013), Saint Petersburg, Russian Federation. Saint Petersburg: Publishing House Polytechnic University, pp. 225–231.
[24] Roshchin, V. E. and Roshchin, A. V. (2013). Selective Reduction of Metals in the Crystal Lattice of Complex Oxides: Physical Principles. Steel in Translation, vol. 43, issue 5, pp. 278–287.
[25] Roshchin, V. E. and Roshchin, A. V. (2013). Selective Reduction of Metals in the Lattice of a Complex Oxide. Russian Metallurgy (Metally), issue 3, pp. 169–175.
[26] Roshin,V.E.andRoshin,A.V.(2013,June).SelectiveExtractionofMetalsfromComplexOres.Presented at the Thirteenth International Ferroalloys Congress. INFACON XIII. Almaty, Kasakhstan. Karaganda: Printed by P.Dipner, vol. 2, pp. 685-695.
[27] Roshchin, V. E. and Roshchin, A. V. (2015). Physics of the Solid Phase Oxidation and Reduction of Metals. Russian Metallurgy (Metally), issue 5, pp. 354–359.
[28] Patent RF No. 2460813. The Method of Selective Extraction of Metals from Complex Ores. Roshchin, V. E., Roshchin, A. V. and Roshchin, E. V. Date of application: 16.06.2011. Date of publication: 09.10.2012.
[29] Patent RF No. 2507277. A Method for the Selective Extraction of Metals from Complex Ores formed by Solid Oxide Solutions or Oxide Chemical Compounds. Roshchin, V. E. and Roshchin, A. V. Date of application: 07.12.2012. Date of publication: 20.02.2014.
[30] Patent RF No. 130994. Processing Line for Processing Complex Iron Ores (options). Roshchin, A. V., et al. Date of application: 31.08.2012. Date of publication: 10.08.2013.
[31] Patent RF No. 2539884. A Method of Processing Iron-Containing Waste. Povolockij, A. D., et al. Date of application: 13.09.2013. Date of publication: 27.01.2015.
[32] Patent RF No. 2634535. A Method of Obtaining a Cast Iron Grinding Bodies. Karkarin, A. M., et al. Date of application: 23.08.2016. Date of publication: 31.10.2017.
[33] Lykasov, A. A., Ryss, G. M. and Borodin, I. S. (2014). Reduction of Iron from Sulphide Smelting Slag by Products of Carbon Gasification. Izv. universities. Ferrous metallurgy, issue1, pp. 30-33.
[34] Lykasov, A. A. and Ryss, G. M. (2006). Copper Metallurgy: A Training Manual. Chelyabinsk: Izd-vo YUUrGU, p. 75.