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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2023-6-760-767</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2667</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>По материалам международной  конференции «Научно-практическая школа для молодых металлургов» – 2023</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>On the materials of the international conference “Scientific and Practical School for Young Metallurgists” – 2023</subject></subj-group></article-categories><title-group><article-title>Получение рафинировочных глиноземсодержащих флюсов методом спекания из техногенного сырья</article-title><trans-title-group xml:lang="en"><trans-title>Production of refining alumina-containing fluxes by sintering from technogenic raw materials</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-2611-2057</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аксенова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Aksenova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виктория Владимировна Аксенова, аспирант кафедры металлургии стали, новых производственных технологий и защиты металлов</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Viktoriya V. Aksenova, Postgraduate of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">axenovaviki@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3773-9469</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Павлов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pavlov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Васильевич Павлов, д.т.н., профессор кафедры металлургии стали, новых производственных технологий и защиты металлов</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Aleksandr V. Pavlov, Dr. Sci. (Eng.), Prof. of the Chair of Metallurgy of Steel, New Production Technologies and Metal Protection</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">pav-gnts@misis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7285-7888</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Марков</surname><given-names>Г. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Markov</surname><given-names>G. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Георгий Михайлович Марков, младший научный сотрудник</p><p>Россия, 119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Georgii M. Markov, Junior Researcher</p><p>4 Leninskii Ave., Moscow 119049, Russian Federation</p></bio><email xlink:type="simple">markov.sci@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСИС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>29</day><month>12</month><year>2023</year></pub-date><volume>66</volume><issue>6</issue><fpage>760</fpage><lpage>767</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Аксенова В.В., Павлов А.В., Марков Г.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Аксенова В.В., Павлов А.В., Марков Г.М.</copyright-holder><copyright-holder xml:lang="en">Aksenova V.V., Pavlov A.V., Markov G.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://fermet.misis.ru/jour/article/view/2667">https://fermet.misis.ru/jour/article/view/2667</self-uri><abstract><p>Современные сталеплавильные предприятия России для разжижения извести на агрегате ковш-печь применяют преимущественно глиноземсодержащие материалы, которые пришли взамен плавиковому шпату. Доступные сейчас на рынке глиноземсодержащие материалы не могут быть использованы напрямую в сталеплавильном производстве без предварительной подготовки (рафинирования, термообработки или брикетирования), либо просто непригодны для ковшевой обработки стали. В данной работе описаны лабораторные исследования по получению рафинировочных глиноземсодержащих флюсов методом спекания в агрегатах по типу машин для обжига окатышей или производства агломерата (в температурном интервале 1200 – 1500 °С) из чистых отходов металлургического производства (мелкодисперсная пыль производства глинозема и обожженной извести), отвечающих требованиям сталеплавильных предприятий по химическому составу и меха­ническим свойствам. Проведено сравнение технологических схем спекания с введением в качестве источника CaO гидратированной извести и смеси гидратированной извести и карбоната кальция в соотношении 1:1. Предельно допустимое содержание CaO в спеченных брикетах при использовании в шихте смеси гидратированной извести и карбоната кальция, не приводящее к гидратационному разрушению на воздухе, находится в диапазоне 2,3 – 3,6 % в зависимости от температуры выдержки. Предельно допустимое содержание Al2O3 в спеченных брикетах при использовании в шихте гидратированной извести, не приводящее к гидратационному разрушению на воздухе, находится в диапазоне 9,5 – 31,7 % в зависимости от температуры выдержки. В существующих топливных агрегатах возможно получить флюсы методом спекания только при использовании в качестве источника CaO гидратированной извести, так как добавление карбоната кальция в шихту (9 – 22 %) требует увеличения температуры выдержки (выше 1500 °С) или ее продолжительности (более 25 мин).</p></abstract><trans-abstract xml:lang="en"><p>Modern Russian steelmaking plants use predominantly alumina-containing materials for liquefying lime in a ladle-furnace unit, which replaced fluorspar. Alumina-containing materials currently available on the market cannot be used directly in steelmaking without preliminary preparation (refining, heat treatment or briquetting), or are simply unsuitable for ladle processing of steel. This work describes laboratory studies on the production of refining alumina-containing fluxes by sintering in units such as machines for pellets firing or producing agglomerate (in the temperature range of 1200 – 1500 °C) from clean metallurgical waste (fine dust from the production of alumina and burnt lime), meeting the requirements of steelmaking plants by chemical composition and mechanical properties. A comparison was made of sintering technological schemes with the introduction of hydra­ted lime and a mixture of hydrated lime and calcium carbonate in a 1:1 ratio as a source of CaO. We determined that the maximum permissible CaO content in sintered briquettes when using a mixture of hydrated lime and calcium carbonate in the charge, which does not lead to hydration destruction in air, is in the range of 2.3 - 3.6 %, depending on the holding temperature. The maximum permissible content of Al2O3 in sintered briquettes when using hydrated lime in the charge, which does not lead to hydration destruction in air, is in the range of 9.5 – 31.7 %, depending on the holding temperature. In existing fuel units it is possible to obtain fluxes by sintering only when using hydrated lime as a source of CaO, because adding calcium carbonate to the charge (9 – 22 %) requires an increase in holding temperature (above 1500 °C) or holding time (more than 25 min).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>агрегат ковш-печь</kwd><kwd>глиноземная пыль</kwd><kwd>рафинировочные флюсы</kwd><kwd>глиноземсодержащие материалы</kwd><kwd>алюминаты кальция</kwd><kwd>спекание</kwd><kwd>гидратационное разрушение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ladle-furnace</kwd><kwd>alumina dust</kwd><kwd>refining fluxes</kwd><kwd>alumina-containing materials</kwd><kwd>calcium aluminates</kwd><kwd>sintering</kwd><kwd>hydration destruction</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Sheshukov O.Yu., Mikheenkov M.A., Nekrasov I.V., Metelkin A.A., Egiazar’yan D.K. 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