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Development of metallurgy in Russia and other CIS countries
Название Usage of beneficiation slimes of goethite-hydrogoethite ores as binding agents in pellet production
Автор Yu. S. Yusfin, V. V. Korovushkin, S. I. Anufrieva, V. V. Tikhomirov, G. A. Sladkova, N. M. Durov, D. B. Makeev, A. V. Temnov.
Информация об авторе Dr. Eng., Prof. Yu. S. Yusfin; Dr. Eng., Prof. V. V. Korovushkin; Ph.D. V. B. Tikhomirov; N. M. Durov, Postgraduate; D. B. Makeev, Postgraduate, National Research Technological University "Moscow Institute of Steel and Alloys"; Ph.D. S. I. Anufrieva; G. A. Sladkova, Chief Reseacher; Ph.D. A. V. Temnov, All-Russian Scientific Research Institute of Mineral Raw Materials named after N. M. Fedorovskogo, Russia; krvsch@mail.ru
Реферат
It is proposed to use beneficiation slimes of goethite-hydrogoethite ores as binding agents instead of bentonite in pellet production from concentrate of magnetite ores at Tagarskoe deposit. It is shown using chemical analysis, X-ray analysis, Mossbauer spectroscopy, thermal analysis, porometry and other methods of determination of metallurgical properties, that pellets with slime binding agents have better reducing ability, higher temperature of hematite dissociation and are characterized by slight decrease of cold strength. Calculation of blast furnace practice parameters with partial usage of pellets in charge materials with addition of 5 % slime and 0.5 % bentonite as binding agents has displayed that blast furnace parameters have not changed actually and saving of expensive bentonite is possible.
Ключевые слова Goethite-hydrogoethite ores, bentonite, chemical analysis, spectroscopy, binding agents, mechanical properties, pellets, concentrate, slime.
Библиографический список
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Language of full-text русский
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