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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">10.17073/0368-0797-2022-8-581-589</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2370</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>ФИЗИКО-ХИМИЧЕСКИЕ ОСНОВЫ МЕТАЛЛУРГИЧЕСКИХ ПРОЦЕССОВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICO-CHEMICAL BASICS OF METALLURGICAL PROCESSES</subject></subj-group></article-categories><title-group><article-title>Термодинамическое моделирование восстановления металлов в медеплавильных шлаках и экспериментальная проверка результатов</article-title><trans-title-group xml:lang="en"><trans-title>Thermodynamic modeling of metal reduction in copper-smelting slags and experimental verification of its results</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Адилов</surname><given-names>Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Adilov</surname><given-names>G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Галымжан Адилов, инженер-исследователь, аспирант кафедры пирометаллургических процессов</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Galymzhan Adilov, Research Engineer, Postgraduate of the Chair “Pyrometallurgical Processes”</p><p>76 Lenina Ave., Chelyabinsk 454080, Russian Federation</p></bio><email xlink:type="simple">adilovg@susu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поволоцкий</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Povolotskii</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Давидович Поволоцкий, к.т.н, директор Научно-образовательный центра «Металлургия»</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Aleksandr D. Povolotskii, Cand. Sci. (Eng.), Director of the Scientific and Educational Center “Metallurgy”</p><p>76 Lenina Ave., Chelyabinsk 454080, Russian Federation</p></bio><email xlink:type="simple">adp@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рощин</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Roshchin</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Василий Ефимович Рощин, д.т.н., профессор, главный научный сотрудник кафедры пирометаллургических процессов</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Vasilii E. Roshchin, Dr. Sci. (Eng.), Prof., Chief Researcher of the Chair “Pyrometallurgical Processes”</p><p>76 Lenina Ave., Chelyabinsk 454080, Russian Federation</p></bio><email xlink:type="simple">roshchinve@susu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Южно-Уральский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>01</day><month>09</month><year>2022</year></pub-date><volume>65</volume><issue>8</issue><fpage>581</fpage><lpage>589</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Адилов Г., Поволоцкий А.Д., Рощин В.Е., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Адилов Г., Поволоцкий А.Д., Рощин В.Е.</copyright-holder><copyright-holder xml:lang="en">Adilov G., Povolotskii A.D., Roshchin V.E.</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/2370">https://fermet.misis.ru/jour/article/view/2370</self-uri><abstract><p>В отвалах медеплавильных предприятий Российской Федерации накоплено свыше 110 млн т шлака и их количество продолжает увеличиваться. Экологические налоги и затраты на содержание отвалов требуют значительных расходов, что делает необходимым возможно более полную утилизацию этих отходов производства. В то же время в этих шлаках содержатся ценные элементы, в частности, железо, медь, цинк, селен, мышьяк и некоторые другие, извлечение которых может сделать утилизацию шлаков рентабельной. В работе приведены результаты термодинамического расчета поведения элементов медеплавильного шлака в смеси с углеродом при нагреве. Моделирование выполнено с использованием программного комплекса ТЕРРА. Проанализировано влияние температуры процесса в интервале 600  –  1750  °С на восстановление железа, цинка и кремния при количестве в системе углерода, соответствующем стехиометрии реакций восстановления железа и превышающем стехиометрическое. Установлено, что при нагреве выше 650  °С в системе появляется металлическое железо, а  его полное восстановление завершается при 1250 °С. Появление металлического цинка наблюдается в двух температурных интервалах: в первом наблюдается появление цинка с одновременным понижением концентрации оксида цинка, во втором – повышение концентрации металлического цинка при одновременном понижении концентрации сульфида цинка. При температуре выше 1650  °С в системе появляется кремний. В лабораторных условиях опробованы процессы твердофазного восстановления железа с улавливанием оксида цинка и разделением продуктов восстановления. Установлено, что в результате пирометаллургического разделения плавлением продуктов восстановления могут быть получены сплавы железа с углеродом (сталь и чугун) и сплавы с повышенным содержанием кремния. Полученные результаты могут быть использованы при разработке теоретических и технологических основ переработки медеплавильных шлаков, которые существующими технологиями не перерабатываются.</p></abstract><trans-abstract xml:lang="en"><p>Over 110 million tons of slag were accumulated in the dumps of the Russian copper-smelting enterprises, and their number is increasing. Environmental taxes and dumps maintenance costs are burdensome, which makes it necessary to make the most complete disposal of these production wastes. At the same time, these slags contain valuable elements, in particular, iron, copper, zinc, selenium, arsenic and some others, the extraction of which can make recycling profitable. The paper presents the results of a thermodynamic calculation of the behavior of copper-smelting slag elements in the mixture with carbon during heating. Modeling was performed using the TERRA software package. The influence of the process temperature in the range of 600 – 1750 °C on reduction of iron, zinc and silicon was analyzed at the amount of carbon in the system corresponding to the stoichiometry of iron reduction reactions and exceeding the stoichiometric one. It was established that when heated above 650 °C, metallic iron appears in the system, and its full reduction is completed at 1250 °C. The appearance of metallic zinc is observed in two temperature ranges: in the first, appearance of zinc is observed with a simultaneous decrease in concentration of zinc oxide; in the second, an increase in concentration of metallic zinc with a simultaneous decrease in concentration of zinc sulfide. At temperatures above 1650 °C, silicon appears in the system. Under laboratory conditions, the processes of solid-phase reduction of iron with the capture of zinc oxide and separation of the reduction products were tested. It was established that as a result of pyrometallurgical separation by melting reduction products, iron-carbon alloys (steel and cast iron) and alloys with high silicon content can be obtained. The results of the work can be used in development of theoretical and technological foundations for the processing of copper smelting slags, which are not processed by existing technologies.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>шлак</kwd><kwd>переработка</kwd><kwd>пирометаллургия</kwd><kwd>восстановление</kwd><kwd>углерод</kwd><kwd>кислород</kwd><kwd>анион</kwd><kwd>катион</kwd></kwd-group><kwd-group xml:lang="en"><kwd>slag</kwd><kwd>processing</kwd><kwd>pyrometallurgy</kwd><kwd>reduction</kwd><kwd>carbon</kwd><kwd>oxygen</kwd><kwd>anion</kwd><kwd>cation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке Российского фонда фундаментальных исследований № 20-38-90109; Российского фонда фундаментальных исследований и Челябинской области № 20-48-740034.</funding-statement><funding-statement xml:lang="en">The research was supported by the RFBR in the framework of scientific project No. 20-38-90109, as well as by the RFBR and the Chelyabinsk region in the framework of scientific project No. 20-48-740034.</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">Санакулов К.С., Хасанов А.С. 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