Magnesium Oxide Production by Plasma Chemical Conversion from Fluorine-Containing Industrial Waste
Source abstract
Abstract
This work discusses the possibility of decomposing magnesium fluoride by ionized water vapor to form solid magnesium oxide and hydrogen gas in the reaction: MgF2 + H2O → MgO + 2HF. The technology and individual apparatuses of the plasma-chemical installation are described, and the influence of the fractional composition of magnesium fluoride powder on the productivity of the plasma conversion process is considered. To improve the efficiency of the plasma pyrolysis process, a method for making magnesium fluoride briquettes was developed. The completeness of the conversion process of magnesium fluoride to an oxide was evaluated by energy dispersive X-ray spectroscopy in the study of objects in scanning electron microscopy (SEM) and by X-ray diffractometry. It was found that the conversion process of magnesium fluoride to magnesium oxide has a relatively high degree of decomposition of magnesium fluoride fraction ≤75 µm. The use of the proposed processing method makes it possible to obtain pure magnesium oxide as a commercial product and to utilize fluorine-containing industrial waste.
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Research context
OpenAlex topics: Bone Tissue Engineering Materials · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Research Center “Surface Engineering and Tribology”, Sarsen Amanzholov East Kazakhstan University, Ust-Kamenogorsk 070000, Kazakhstan
Ulba Metallurgical Plant JSC, Ust-Kamenogorsk 070005, Kazakhstan
Shakarim University, Semey 071412, Kazakhstan
PlasmaScience LLP, Ust-Kamenogorsk 070010, Kazakhstan
Funding
Science Committee of the Ministry of Education and Science of the Republic of Kazakhsta
References (16)
Show source-provided references
1. Naboychenko, S.S., Murashova, I.B., and Neikov, O.D. (2009). Production of Rare Metal Powders, Elsevier. [2nd ed.].10.1016/B978-1-85617-422-0.00021-5 ↗
2. Luminescence of MgF2-WO3 ceramics synthesized in the flux of 1.5 MeV electron beam10.1016/j.optmat.2022.112999 ↗
3. Thermal annealing of radiation defects in MgF2 single crystals induced by neutrons at low temperatures10.1016/j.nimb.2020.07.026 ↗
4. Processing of industrial waste by plasma-chemical method
5. Assessment of thermodynamic parameters of the plasma chemical process for magnesium oxide production10.32523/ejpfm.2022060207 ↗
6. A Critical Review on Solid Waste Treatment using Plasma Pyrolysis Technology10.1016/j.cep.2022.108989 ↗
7. Plasma Chemical Conversion of Spent Lubricating Materials10.1007/s10891-021-02416-4 ↗
8. Recycling of Organic Waste in a Plasma Reactor10.1007/s10891-020-02199-0 ↗
9. Application of thermal plasma technology for the treatment of solid wastes in China: An overview10.1016/j.wasman.2016.06.011 ↗
10. Development of air-plasma technology for hardening cutting tools by applying wear-resistant coatings
11. Chu, P.K., and Lu, X. (2013). Low Temperature Plasma Technology: Methods and Applications, Taylor and Francis. [2nd ed.].10.1201/b15153 ↗
12. Progress in waste utilization via thermal plasma10.1016/j.pecs.2020.100873 ↗
13. Arinov, B.Z., and Kening, V.K. (2014, January 18–19). Studies on integrated processing of beryllium-containing concentrates using the plasma chemical method. Proceedings of the International Scientific and Technical Conference “Innovative Technologies and Projects in the Mining and Metallurgical Complex”, Almaty, Kazakhstan. (In Russian).
14. (2007, September 17). Kazakhstan Patent Database. (In Russian).
15. Effect of the value of x in NH4F·xHF on the digestion of plasma-dissociated zircon10.1016/j.minpro.2016.01.002 ↗
16. Thermomagnetometry10.1016/0040-6031(87)88235-7 ↗