The problem of desulphurization of crude ferronickel obtained by low reduction technology at the Pobuzhsky ferronickel plant
DOI:
https://doi.org/10.15802/tpm.3.2024.05Keywords:
ore-thermal furnace, rough ferronickel, desulfurization, silicon, carbon, mixingAbstract
Purpose. With the commissioning of the Canadian company Hatch's RTP1 at the Pobuzhsky Ferronickel Plant and its transfer to low-reduction technology, it became possible to produce ferronickel containing only hundredths of a percent of silicon and carbon, which are necessary for soda desulfurization in a ladle. Therefore, the plant has implemented a comprehensive technology that provides for mixing (mixing) crude ferronickel produced from RTP1 with a reduced silicon and carbon content and a high Ni content, with an alloy from RTP2 with a low nickel concentration and a high silicon and carbon. However, due to the shutdown of RTP2 for major repairs, there was a need to develop a desulfurization mode using a combined scheme that involves combining soda desulfurization and oxygen-converter desulfurization, which is difficult and requires additional material and energy costs. Methodology. Thermodynamic modeling was performed using the HSC Chemistry 6.1 software package. Analytical and industrial research in the conditions of Pobuzhsky Ferronickel Plant. Results. The results of industrial research of the combined technological scheme of high-percentage ferronickel desulfurization in a ladle and converter were processed and analyzed, the technical results of ferronickel desulfurization at all stages of development and improvement of production in the conditions of the PFC were summarized. Scientific novelty. The equilibrium distribution of phases in the Fe-Ni-S-Na-Si-C-O system was carried out using the database of the HSC Chemistry 6.0 program. It was shown that silicon affects the completeness of the desulfurization reaction. The temperature limits of the process were identified. Practical significance. In industrial conditions of the Pobuzhsky Ferronickel Plant, a combined technology for desulfurization of high-grade ferronickel from RTP1 using the ladle-oxygen converter scheme has been developed and mastered, which has provided the possibility of the plant operating when RTP2 is stopped for major repairs and obtaining commercial products.
References
Shcho take nikel i dlia choho vin potriben? https://moyaosvita.com.ua/himiya/shho-take-nikel-i-dlya-chogo-vin-potriben/
Solway Investment Group, GmbH – Private international mining and metals group located in Switzerland. Solway operates mines and smelting plants in Guatemala, Ukraine, Russia, Indonesia and Macedonia, with a focus on nickel production. https://solwaygroup.com/
Chy ye v Ukraini nikel? – Natsionalna asotsiatsiia dobuvnoi promyslovosti Ukrainy. https://neiau.com.ua/chi-%D1%94-v-ukra%D1%97ni-nikel/
Hasyk, M. I., Zaporozhets, B. O., Novikov, M. V., Novikov, M. M., Ovcharuk, A. M., Prykhodko, S. V., Romanenko, V. A., Sokolov, K. D., Taran, O. Yu., & Filov, O. S. (2011). Sposib vyplavky chornovoho feronikeliu z optymalnym vmistom kremniiu. (Patent No. 62847). Derzhavna Sluzhba Intelektualnoyi Vlasnosti Ukrayiny.
Novikov, N. V., Kapran, I. I., Sokolov, K. D., Gasik, M. I., & Ovcharuk, A. N. (2005). Issledovanie khimicheskogo mineralogicheskogo sostava nikelevykh rud dlia vyplavki ferronikelia. Metallurgicheskaia i gornorudnaia promyshlennost, (3), 19-22
Bespalov, O. L., Prykhodko, S. V., Danov, O. V., Melnyk, S. O., Tsvitkov, I. V., Taran, O. Yu., Ovcharuk, D. S., Novikov, M. M., & Danyliuk, V. V. (2016). Vidnovna sumish dlia elektrotermichnoho vyrobnytstva feronikeliu. (Patent No. 109001). Derzhavna Sluzhba Intelektualnoyi Vlasnosti Ukrayiny
Bespalov, O. L., Sokolov, K. D., Prikhodko, S. V., Zamkovoi, O. V., Shevchenko, D.A ., Melnik, S. A., Novikov, N. N., Ovcharuk, D. S., & Solokha, V. V. (2017). Sovremennoe sostoianie i perspektivy sovershenstvovaniia tekhnologii proizvodstva ferronikelia. Aktualnye problemy razvitiia metallurgicheskoi nauki i obrazovaniia, pp. 204-211. https://nmetau.edu.ua/file/zbirka_dopovidey_100-richchya_efimenka.pdf
Efimenko, G. G., Gimmelfarb, A. A., & Levchenko, V. E. (1988). Metallurgiia chuguna. Vishcha shkola
Shevchenko, D. V., Prykhodko, S. V., Nadtochii, A. A., Shutov ,V. Yu., & Ovcharuk, A. M. (2024). Rozvytok tekhnolohii vyrobnytstva feronikeliu v Ukraini. Suchasna elektrometalurhiia, (2), 5-12. https://doi.org/10.37434/sem2024.02.01
Hobotova, E., & Hrajvoronskaya, I. (2019). Sorption properties of metallurgical slags. Bulletin of Kharkov National Automobile and Highway University, (84), 88-97. https://doi.org/10.30977/BUL.2219-5548.2019.84.0.88
Khobotova, E. B., Graivoronskaia, I. V., Datsenko, V. V., & Baumer, V. N. (2011). Otsenka vozmozhnosti ispolzovaniia shlaka pri proizvodstve ferronikelia dlia ochistki stochnykh vod. Khimiia i tekhnologiia vody, 33(4), 443-450. http://dspace.nbuv.gov.ua/handle/123456789/130652
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2024 Shevchenko D.V., Ovcharuk A.M., Nadtochii A.A.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors retain copyright of the published papers and grant to the publisher the non-exclusive right to publish the article, to be cited as its original publisher in case of reuse, and to distribute it in all forms and media. Articles will be distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence.
Authors can enter the separate, additional contractual arrangements for non-exclusive distribution of the published paper (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
