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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">10.17073/0368-0797-2021-10-761-767</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2194</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>Разделение компонентов железомарганцевой руды бесконтактным и контактным карботермическим восстановлением</article-title><trans-title-group xml:lang="en"><trans-title>Separation of ferromanganese ore components by non-contact and contact carbothermic reduction</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1570-4188</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Косдаулетов</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kosdauletov</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Косдаулетов Нурлыбай - аспирант кафедры пирометаллургических процессов.</p><p>454080, Челябинск, пр. Ленина, 76.</p></bio><bio xml:lang="en"><p>Nurlybai Kosdauletov - Postgraduate of the Chair “Pyrometallurgical Processes”, South Ural State University.</p><p>76 Lenina Ave., Chelyabinsk 454080.</p></bio><email xlink:type="simple">kosdauletovn@susu.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/0000-0001-6555-6817</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мухамбетгалиев</surname><given-names>Е. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukhambetgaliev</surname><given-names>E. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мухамбетгалиев Ербол Кенжегалиулы - ведущий научный сотрудник лаборатории «Металлургические расплавы».</p><p>100009, Караганда, ул. Ермекова, 63.</p></bio><bio xml:lang="en"><p>Erbol K. Mukhambetgaliev - Leading Researcher of the Laboratory “Metallurgical Alloys”, Abishev Chemical-Metallurgical Institute.</p><p>63 Ermekova Str., Karaganda 100009.</p></bio><email xlink:type="simple">ye.kenzhegaliuly@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3648-8821</contrib-id><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>Рощин Василий Ефимович – доктор технических наук, профессор, главный научный сотрудник кафедры пирометаллургических процессов.</p><p>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”, South Ural State University.</p><p>76 Lenina Ave., Chelyabinsk 454080.</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 (НИУ)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural State University (NRU)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Химико-металлургический институт им. Ж. Абишева</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Abishev Chemical-Metallurgical Institute</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>11</month><year>2021</year></pub-date><volume>64</volume><issue>10</issue><fpage>761</fpage><lpage>767</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Косдаулетов Н., Мухамбетгалиев Е.К., Рощин В.Е., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Косдаулетов Н., Мухамбетгалиев Е.К., Рощин В.Е.</copyright-holder><copyright-holder xml:lang="en">Kosdauletov N., Mukhambetgaliev E.K., 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/2194">https://fermet.misis.ru/jour/article/view/2194</self-uri><abstract><p>Экспериментально подтверждена возможность совместного селективного твердофазного восстановления железа и фосфора в железомарганцевой руде. Эксперименты проведены в лабораторной печи Таммана при температуре 1000 °C и выдержке в течение 2 и 5 ч. Приведены результаты исследования фазового состава и соотношения количества фаз продуктов восстановления, а также их химического состава. Установлено, что при восстановительном обжиге в атмосфере СО обеспечивается переход из оксидной фазы в металлическую только железа и фосфора. При этом в оксидной фазе руды повышается концентрация оксида марганца MnO. Использование в качестве восстановителя твердого углерода в этих же условиях приводит к переходу в металлическую фазу вместе с железом и фосфором части марганца. Исходя из полученных данных предлагается селективное восстановление железа и фосфора проводить при температуре 1000 °С восстановительным газом. Газовое восстановление позволит использовать для металлизации железа и фосфора в железомарганцевой руде существующие газовые, в частности, многоподовые печи, а в качестве восстановителя и энергоносителя - природный газ, в том числе обогащенный водородом, и даже чистый водород. Благодаря этому на стадии металлизации руды при производстве марганцевых сплавов могут быть уменьшены выбросы парникового газа СО2 . Результаты работы могут быть использованы при разработке теоретических и технологических основ переработки железомарганцевых руд с повышенным содержанием фосфора, которые существующими технологиями не перерабатываются.</p></abstract><trans-abstract xml:lang="en"><p>The possibility of joint selective solid-phase reduction of iron and phosphorus in ferromanganese ore has been experimentally confirmed. The experiments were carried out in a Tamman laboratory furnace at a temperature of 1000 °C and holding for two and five hours. The article presents results of the study of phase composition and phases' quantitative ratio of the reduction products, as well as chemical composition of the phases. It was established that reduction roasting in CO atmosphere provides a transition from oxide phase to metal phase only of iron and phosphorus. At the same time, the concentration of manganese oxide MnO increases in the ore oxide phase. The use of solid carbon as a reducing agent under the same conditions leads to transition to the metallic phase together with iron and phosphorus of a part of manganese. Based on the obtained data, it is proposed to selectively reduce iron and phosphorus at a temperature of 1000 °C with a reducing gas. Gas reduction will make it possible to use existing gas furnaces, in particular, multi-pod furnaces, for metallization of iron and phosphorus in ferromanganese ore, and natural gas, including hydrogen -enriched gas, and even pure hydrogen, as a reducing agent and energy carrier. Due to this, at the stage of ore metallization in production of manganese alloys, greenhouse gas CO2 emissions can be reduced. The results of the work can be used in the development of theoretical and technological bases for processing ferromanganese ores with a high content of phosphorus, which are not processed by existing technologies.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>железомарганцевая руда</kwd><kwd>марганец</kwd><kwd>ферромарганец</kwd><kwd>фосфор</kwd><kwd>железо</kwd><kwd>концентрат</kwd><kwd>карботермическое прямое и косвенное восстановление</kwd><kwd>температура восстановления</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ferromanganese ore</kwd><kwd>manganese</kwd><kwd>ferromanganese</kwd><kwd>phosphorus</kwd><kwd>iron</kwd><kwd>concentrate</kwd><kwd>carbothermic direct and indirect reduction</kwd><kwd>reduction temperature</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке РФФИ в рамках научного проекта № 20-38-90112, а также при финансовой поддержке РФФИ и Челябинской области в рамках научного проекта № 20-48-740034.</funding-statement><funding-statement xml:lang="en">The work was supported by the Russian Foundation for Basic Research, scientific project No. 20-38-90112, and with participation of Chelyabinsk Region (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">Дашевский В.Я., Александров А.А., Жучков В.И., Леонтьев Л.И. 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