Denisyuk T., Rachkov O., Smirnov O., Khvoshchan O., Starkov I. Research on the possibility of using electrical discharge in a liquid for processing products and wastes of titanium production
- Details
- Parent Category: Geo-Technical Mechanics, 2025
- Category: Geo-Technical Mechanics, 2025, Issue 174
Geotech. meh. 2025, 174, 151-160
RESEARCH ON THE POSSIBILITY OF USING ELECTRICAL DISCHARGE IN A LIQUID FOR PROCESSING PRODUCTS AND WASTES OF TITANIUM PRODUCTION
M.S. Poliakov Institute of Geotechnical Mechanics of the National Academy of Sciences of Ukraine
UDC 669.295:621.373
Language: English
Abstract. The article is devoted to the issue of improving the technologies for processing titanium-containing raw materials. Today, this task is relevant, has scientific and practical significance for Ukraine, given the significant reserves of titanium ores on its territory and the strategic importance of the titanium industry. The article focuses on examining the main traditional methods of processing titanium ores and on analyzing their drawbacks, among which are high energy consumption, the need for a large amount of sulfuric acid, the formation of harmful sulfur-containing waste during processing, and the need for additional cleaning processes. As a promising alternative to existing methods, the use of an electric discharge in a liquid is proposed - a high-voltage breakdown of the liquid gap between the electrodes, as a result of which a high energy density occurs in the discharge channel for a short period of time, the pressure and temperature rise sharply, the discharge channel expands rapidly, and a pressure wave is emitted into the external environment. The advantages of using an electric discharge include: environmental safety, the absence of pollution, the possibility of adjusting processing parameters. Experimental studies of the effect of electric discharge on titanium dioxide paste and waste from titanium ore production were conducted. The results of the studies showed that under the influence of factors, the source of which is an electric discharge in a liquid, the sulfur concentration decreases: in the dioxide paste up to three times, and in waste from titanium ore production - up to 2 times. At the same time, during electric discharge processing, grinding of the primary material is observed, as evidenced by the results of the analysis of the particle size composition. The study of different modes of electric discharge action made it possible to determine the rational specific energy of impact - a further increase in the specific energy of impact does not lead to significant changes in the sulfur concentration and particle size of the products. The results obtained show the possibility and confirm the prospects of using electric discharge in a liquid for processing products of the sulfate method of obtaining titanium dioxide and waste from its production for the purpose of their desulphation.
Key words: titanium dioxide, electrical discharge technology, waste desulphation.
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About the authors
Denisyuk Tetiana, Junior researcher, Institute of Pulse Processes and Technologies of the NAS of Ukraine, Mykolaiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID 0009-0009-7551-4923
Rachkov Oleksiy, Junior researcher, Institute of Pulse Processes and Technologies of the NAS of Ukraine, Mykolaiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID 0009-0002-4940-4818
Smirnov Oleksiy, Candidate of Technical Sciences (Ph.D), Senior Researcher, Institute of Pulse Processes and Technologies of the NAS of Ukraine, Mykolaiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. (Corresponding author), ORCID 0000-0002-0542-1280
Khvoshchan Oleh, Candidate of Technical Sciences (Ph.D), Senior Researcher, Institute of Pulse Processes and Technologies of the NAS of Ukraine, Mykolaiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. , ORCID 0000-0002-5236-8187
Starkov Ihor, Junior researcher, Institute of Pulse Processes and Technologies of the NAS of Ukraine, Mykolaiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. Mykolaiv, Ukraine, ORCID 0000-0002-9740-3468