High-carbon ferromanganese smelting on high-base slags
DOI:
https://doi.org/10.31643/2020/6445.38Keywords:
ferromanganese, borate fluxes, basicity, slag, degree of extraction.Abstract
The article presents the results of laboratory trials for the smelting of high-carbon ferromanganese on highly-basic slags. Laboratory trials have confirmed that an increase in the basicity of ferromanganese production slags has a positive effect on the reduction of manganese to the metal and a decrease in the concentration of silicon in it. However, the high basicity makes the slag high-melting and tough, leading to large losses of manganese with the slag. The use of on borate fluxes solves this problem by affecting the physical and chemical properties of the final slags, which allows the process to be carried out at high basicities with the achievement of optimal technological indicators. The obtained positive results of laboratory experiments served as the basis for approbation the developed technology on a semi-industrial scale with the smelting of high-carbon ferromanganese by the flux method from the manganese ore of the «Bogach» Deposit. As a result of studying the smelting of carbonaceous ferromanganese in large-scale laboratory conditions, the possibility of converting manganese ores on highly-basic slags with appropriate regulation of the transport properties of slag to a standard metal with high technical and economic indicators was established. The best results are achieved when the CaO/SiO2 ratio in the slag is 1.8 and the boron oxide content in the slag is 0.8%. It is established that under these conditions, the obtained boron-containing highly-basic slags of carbonaceous ferromanganese are not subject to slaking.
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Gasik M.I., Lyakishev N.P., Emlin B.I. Teoriya i tekhnologiya proizvodstva ferrosplavov [Theory and technology of Ferroalloy production]. -M.: metallurgy, 1988. -Pp. 206-207.(In Russian).
Marganets [Manganese]. Gasik M. I.-M.: metallurgy, 1992. -608 p.(In Russian).
Abdulabekov E. E. Razrabotka tekhnologii okomkovaniya melochi khromitovoy rudy s primeneniyem keramzitovoy gliny [Development of technology for pelletizing chromite ore fines using expanded clay].: Diss. kand. tehn. Sciences: -Karaganda: khmi, 2006. -129 p.(In Russian).
Piloyan G. O., Novikova O. S. Termograficheskiy i termogravimetricheskiy metody opredeleniya energii aktivatsii protsessov dissotsiatsii [Thermographic and thermogravimetric methods for determining the activation energy of dissociation processes]. Journal of inorganic chemistry. -1967. -Vol. 12, No. 3. -P. 602-604.(In Russian).
Piloyan G. O., Novikova O. S. O kinetike degidratatsii sinteticheskikh tseolitov [On the kinetics of dehydration of synthetic zeolites]. // News of Academy of Sciences of the USSR. Inorganic material. -1966. -Vol. 2, No. 7. -P. 1298-1301.(In Russian).
Kissinger Kh. E. / / analit. Chem. -1957. -Issue 29, No. 11.-P. 1702.(In English).
Gabdullin T. G., Takenov T. D., Baysanov S. O. and others. Fiziko-khimicheskiye svoystva margantsevykh shlakov [Physical and chemical properties of manganese slags]. -Alma-ATA, 1984. -232 p.(In Russian).
Bobkova O. S. Silikotermicheskoye vosstanovleniye metallov [Silicothermic recovery of metals]. -M., 1981. -130 p.(In Russian).
The Name Aimy Tadasiko. Mineralogical study of manganese slags // Ferroaroy, vol. 26, no. 1-2, 1981, pp. 1-10.(In English).
Marganets. Mineral'no-syr'yevaya baza SNG. Dobycha i obogashcheniye rud [Manganese. Mineral resource base of the CIS. Mining and processing of ores]. // Ed. Acad. K. N. Trubetskoy. -M.: Izd-vo Akad. mining Sciences, 1999. -271 p.(In Russian).
Sostoyaniye i perspektivy mirovogo i vnutrennego rynkov tsvetnykh, redkikh i blagorodnykh metallov [State and prospects of the world and domestic markets of non-ferrous, rare and precious metals].: inform.-anal. review. Issue 16. Manganese and its ferroalloys. M.: IAC LLC "Informetgeo", 2002. -213 p.(In Russian).
Zhuchkov V. I., Smirnov L. A., Zaiko V. P., Voronov Yu. I. Tekhnologiya margantsevykh ferrosplavov. CH.1. Vysokouglerodistyy ferromarganets [Technology of manganese ferroalloys. Part 1. high-Carbon ferromanganese]. -Yekaterinburg: Uro RAS, 2007. -414s.(In Russian).
Svyatov B. A. Tolymbekov M. Zh. Baisanov S. O. Stanovleniye i razvitiye margantsevoy otrasli Kazakhstana [Formation and development of the manganese industry in Kazakhstan]. –Almaty: Iskander, 2002, 416 p.(In Russian).
Tigunov L. P., Smirnov L. A., Menadjieva R. A. Marganets: geologiya, proizvodstvo, ispol'zovaniye [Manganese: Geology, production, use]. -Yekaterinburg: AMB, 2006. -184 p.(In Russian).
Potkonenu N. I. Marganets Rossii: Sostoyaniye, perspektivy osvoyeniya i razvitiya mineral'no-syr'yevoy bazy [Manganese Of Russia: State, prospects of development and development of mineralraw materials base]. // Mineral raw materials. Ser. GEOL. economy. m.: VIMS, 2006, no. 10. -287 p.(In Russian).
Kenzhaliev, B. K., Kvyatkovskii, S. A., Kozhakhmetov, S. M., Sokolovskaya, L. V., Kenzhaliev, É. B., & Semenova, A. S. (2019). Determination of Optimum Production Parameters for Depletion of Balkhash Copper-Smelting Plant Dump Slags. Metallurgist, 63(7-8), 759–765.(In English). https://doi.org/10.1007/s11015-019-00886-9
Manganese. Overview of the ore and alloys market. From IMnI 2005.(In English).
Volodin V. N., Tuleushev Y. Zh., Kenzhaliyev B. K., ... Trebukhov S. A. (2020). Thermal degradation of hard alloys of the niobiumcadmium system at low pressure. Kompleksnoe Ispolʹzovanie Mineralʹnogo syrʹâ/Complex Use of Mineral Resources/Mineraldik Shikisattardy Keshendi Paidalanu,1(312), 41–47.(In English). https://doi.org/10.31643/2020/6445.05
Francavilla D. Global Review of the MN Industry. IMnI Conference, June 11-13 . Cape Town, 2006.(In English).
New developments in the manganese industry. IMnI Conference, June 11-13 . Cape Town, 2006.(In English).
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