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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">10.17073/0368-0797-2024-5-531-541</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2786</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Исследование процессов переработки доменных пыли и шлама с использованием восстановительного обжига и магнитной сепарации</article-title><trans-title-group xml:lang="en"><trans-title>A study on processing of blast furnace dust and sludge using reduction roasting and magnetic separation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7358-150X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Грудинский</surname><given-names>П. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Grudinsky</surname><given-names>P. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Павел Иванович Грудинский, младший научный сотрудник лаборатории проблем металлургии комплексных руд им. академика И.П. Бардина</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Pavel I. Grudinsky, Junior Researcher of the Bardin Laboratory of Metal­lurgy of Complex Ores</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">pgrudinskiy@imet.ac.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/0009-0005-4449-2208</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юртаева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Yurtaeva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Анфиса Александровна Юртаева, старший лаборант-исследователь лаборатории проблем металлургии комплексных руд им. академика И.П. Бардина</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Anfisa A. Yurtaeva, Senior Laboratory Research Assistant of the Bardin Laboratory of Metallurgy of Complex Ores</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">anfisayurtaeva@mail.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/0000-0003-1777-3889</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Волков</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Volkov</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Иванович Волков, к.х.н., директор Научного центра комплексной переработки сырья им. Н.П. Лякишева</p><p>Россия, 105005, Москва, ул. Радио, 23/9</p></bio><bio xml:lang="en"><p>Anton I. Volkov, Cand. Sci. (Chem.), Director of N.P. Lyakishev Scientific Center of Complex Processing of Raw Materials</p><p>23/9 Radio Str., Moscow 105005, Russian Federation</p></bio><email xlink:type="simple">rhenium@list.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-5830-7799</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дюбанов</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyubanov</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Григорьевич Дюбанов, к.т.н., ведущий научный сотрудник лаборатории проблем металлургии комплексных руд им. академика И.П. Бардина</p><p>Россия, 119334, Москва, Ленинский пр. 49</p></bio><bio xml:lang="en"><p>Valerii G. Dyubanov, Cand. Sci. (Eng.), Leading Researcher of the Bardin Laboratory of Metallurgy of Complex Ores</p><p>49 Leninskii Ave., Moscow 119334, Russian Federation</p></bio><email xlink:type="simple">vdyubanov@imet.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии и материаловедения им. А.А. Байкова РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центральный научно-исследовательский институт черной металлургии им. И.П. Бардина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>I.P. Bardin Central Research Institute of Ferrous Metallurgy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>20</day><month>10</month><year>2024</year></pub-date><volume>67</volume><issue>5</issue><fpage>531</fpage><lpage>541</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Грудинский П.И., Юртаева А.А., Волков А.И., Дюбанов В.Г., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Грудинский П.И., Юртаева А.А., Волков А.И., Дюбанов В.Г.</copyright-holder><copyright-holder xml:lang="en">Grudinsky P.I., Yurtaeva A.A., Volkov A.I., Dyubanov V.G.</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/2786">https://fermet.misis.ru/jour/article/view/2786</self-uri><abstract><p>Пыли и шламы доменного производства – техногенные материалы с высоким содержанием железа и углерода, в которых присутствует также цинк. Повышенное содержание цинка препятствует их рециклингу в аглодоменном переделе и приводит к накоп­лению этих материалов в отвалах. В настоящей работе исследованы различные варианты переработки образцов доменной пыли (ДП) и доменного шлама (ДШ) с извлечением ценных элементов на основе восстановительного обжига и магнитной сепарации. С помощью термодинамических расчетов и лабораторных экспериментов изучены три варианта реализации этого способа: магнитная сепарация без предварительного обжига, а также со стадиями обжига с восстановлением железа до магнетита при 800 °С и металлического железа при 1200 °С соответственно. Способы прямой магнитной сепарации без обжига и с предварительным обжигом при 800 °С позволяют получить из образцов ДП и ДШ магнитные концентраты с 49 – 63 % Fe, но содержание цинка в них остается повышенным. Лучшие результаты были получены с использованием восстановительного обжига при 1200 °C продолжительностью 120 мин, последующего размола образцов до –0,054 мм и магнитной сепарации при индукции магнитного поля 0,1 Тл. В результате из ДШ, содержащего 39,5 % Fe и 0,31 % Zn, получен металлизованный магнитный концентрат с содержанием 73,8 % Fe и 0,048 % Zn, а из ДП, содержащей 44,6 % Fe и 0,31 % Zn – металлизованный магнитный концентрат с содержанием 80 % Fe и 0,019 % Zn. Степень извлечения железа в концентрат для ДШ и ДП составила 92,8 и 89,7 % соответственно. Предложенный подход позволяет получать ценные материалы для черной и цветной металлургии из техногенного сырья, увеличить эффективность аглодоменного передела и избежать накопления отходов.</p></abstract><trans-abstract xml:lang="en"><p>Blast furnace dust and sludge are by-products of ironmaking that contain high levels of iron and carbon, along with zinc. The increased zinc content complicates their recycling in the sintering and blast furnace processes, leading to their accumulation in waste dumps. This study investigates different treatment methods for recovering valuable elements from blast furnace dust (BFD) and blast furnace sludge (BFS) through reduction roasting and magnetic separation. Thermodynamic calculations and laboratory experiments were conducted to evaluate three approaches: magnetic separation without the roasting, as well as roasting stages to reduce iron to magnetite at 800 °C or metallic iron at 1200 °C, respectively. Direct magnetic separation without roasting and with the preliminary roasting at 800 °C resulted in magnetic concentrates of 49 – 63 % Fe from the BFD and BFS samples, but with elevated zinc content. The best results were achieved using reduction roasting at 1200 °C for 120 min, followed by grinding the samples to –0.054 mm and magnetic separation with a magnetic field of 0.1 T. As a result, the metallized magnetic concentrate containing 73.8 % Fe and 0.048 % Zn was obtained from the BFS sample (initially containing 39.5 % Fe and 0.31 % Zn), while a concentrate containing 80 % Fe and 0.019 % Zn was produced from the BFD sample (initially containing 44.6 % Fe and 0.31 % Zn). The iron recovery into the concentrates for the BFS and BFD samples was 92.8 and 89.7 %, respectively. The proposed approach can produce valuable materials for ferrous and non-ferrous metallurgy from these by-products, increase the efficiency of sintering and blast furnace processes, and reduce waste accumulation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>доменная пыль</kwd><kwd>доменный шлам</kwd><kwd>переработка</kwd><kwd>восстановительный обжиг</kwd><kwd>магнитная сепарация</kwd><kwd>карботермическое восстановление</kwd><kwd>железо</kwd><kwd>цинк</kwd></kwd-group><kwd-group xml:lang="en"><kwd>blast furnace dust</kwd><kwd>blast furnace sludge</kwd><kwd>processing</kwd><kwd>reduction roasting</kwd><kwd>magnetic separation</kwd><kwd>carbothermic reduction</kwd><kwd>iron</kwd><kwd>zinc</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по государственному заданию № 075-00320-24-00.</funding-statement><funding-statement xml:lang="en">The work was performed according to a state assignment No. 075-00320-24-00.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Omran M., Fabritius T., Paananen T. 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