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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">10.17073/0368-0797-2023-4-479-484</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2586</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>Селективное твердофазное восстановление железа в фосфорис­тых оолитовых рудах</article-title><trans-title-group xml:lang="en"><trans-title>Selective solid-phase reduction of iron in phosphorous oolite ores</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9306-1045</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сулеймен</surname><given-names>Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Suleimen</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бакыт Сулеймен, научный сотрудник научно-исследовательской лаборатории «Водородные технологии в металлургии»</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Bakyt Suleimen, Research Associate of the Research Laboratory “Hydrogen Technologies in Metallurgy”</p><p>76 Lenina Ave., Chelyabinsk 454080, Russian Federation</p></bio><email xlink:type="simple">bakytsuleimen@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/0000-0002-8818-0450</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Салихов</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Salikhov</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семен Павлович Салихов, к.т.н., доцент кафедры пирометаллургических и литейных технологий</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Semen P. Salikhov, Cand. Sci. (Eng.), Assist. Prof. of the Chair of Pyrometallurgical and Foundry Technologies</p><p>76 Lenina Ave., Chelyabinsk 454080, Russian Federation</p></bio><email xlink:type="simple">salikhovsp@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>Шарипов</surname><given-names>Ф. Ш.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharipov</surname><given-names>F. Sh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фарход Шукурович Шарипов, магистрант кафедры пирометаллургических и литейных технологий</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Farkhod Sh. Sharipov, MA Student of the Chair of Pyrometallurgical and Foundry Technologies</p><p>76 Lenina Ave., Chelyabinsk 454080, Russian Federation</p></bio><email xlink:type="simple">saripovf17@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/0000-0003-3648-8821</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>Василий Ефимович Рощин, д.т.н., профессор кафедры пиро­металлургических и литейных технологий</p><p>Россия, 454080, Челябинск, пр. Ленина, 76</p></bio><bio xml:lang="en"><p>Vasilii E. Roshchin, Dr. Sci. (Eng.), Prof. of the Chair of Pyrometallurgical and Foundry Technologies</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>2023</year></pub-date><pub-date pub-type="epub"><day>19</day><month>08</month><year>2023</year></pub-date><volume>66</volume><issue>4</issue><fpage>479</fpage><lpage>484</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сулеймен Б., Салихов С.П., Шарипов Ф.Ш., Рощин В.Е., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Сулеймен Б., Салихов С.П., Шарипов Ф.Ш., Рощин В.Е.</copyright-holder><copyright-holder xml:lang="en">Suleimen B., Salikhov S.P., Sharipov F.S., 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/2586">https://fermet.misis.ru/jour/article/view/2586</self-uri><abstract><p>Представлены результаты экспериментальных исследований по селективному твердофазному восстановлению железа и фосфора в оолитовых рудах Лисаковского и Аятского месторождений. С использованием рентгенофазового анализа определен фазовый состав исходных руд и образцов после восстановительного обжига. В рудах обоих месторождений обнаруживаются гетит, магнетит и кварц. Фосфор в руде Аятского месторождения находится в виде фосфата алюминия и гидрофосфата железа, а в образцах Лисаковской руды – в составе гидрофосфата кальция. Эксперименты по восстановительному обжигу проводились в печи сопротивления при температуре 1000 °C и времени выдержки 5 ч. После обжига в атмосфере СО в образцах появляется α-железо, в то время как фосфор остается в составе фосфатов железа, кальция и алюминия. После обжига в смеси с графитом фосфор восстанавливается твердым углеродом из фосфатов железа и кальция и переходит в металл, однако остается в составе фосфата алюминия. Исследования с использованием микрорентгеноспектрального анализа показывают, что содержание фосфора в металлической фазе после восстановления твердым углеродом составляет 2,0 – 3,5 % (ат.). При восстановлении в атмосфере CO фосфора в металлической фазе практически не обнару­живается. При этом количество остаточного железа в оксидной фазе после восстановления угарным газом значительно превышает количество железа после восстановления в смеси с углеродом. Результаты экспериментов подтверждают возможность селективного восстановления железа оксидом углерода CO без восстановления фосфора.</p></abstract><trans-abstract xml:lang="en"><p>Selective solid-phase reduction of iron and phosphorus in oolite ores of the Lisakovsky and Ayat deposits was experimentally studied. Using X-ray phase analysis, the phase composition of the initial ores and samples after reduction roasting was determined. Goethite, magnetite and quartz were found in the ores of both deposits. Phosphorus in the ore of the Ayat deposit is in the form of aluminum phosphate and iron hydrophosphate, and in the samples of the Lisakovsky ore – as a component of calcium hydrophosphate. Experiments on reduction roasting were carried out in a resistance furnace at 1000 °C with holding time of 5 h. After roasting in CO atmosphere, α-Fe appears in the samples, while phosphorus remains as a component of iron, calcium and aluminum phosphates. After roasting in a mixture with graphite, phosphorus is reduced by solid carbon from iron and calcium phosphates and passes into metal, but remains as a component of aluminum phosphate. Studies using microroentgenospectral analysis show that phosphorus content in the metal phase after reduction with solid carbon is 2.0 – 3.5 at. %. When CO is reduced in the atmosphere, phosphorus in the metallic phase is practically not detected. At the same time, the amount of residual iron in the oxide phase after carbon monoxide reduction significantly exceeds the amount of iron after reduction in a mixture with carbon. The experimental results confirm the possibility of selec­tive reduction of iron by carbon oxide CO without phosphorus reduction.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>оолитовая железная руда</kwd><kwd>восстановительный обжиг</kwd><kwd>оксид углерода CO</kwd><kwd>селективное восстановление</kwd><kwd>металлизация</kwd><kwd>металлическое железо</kwd><kwd>фосфор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>oolitic iron ore</kwd><kwd>reduction roasting</kwd><kwd>carbon monoxide</kwd><kwd>selective reduction</kwd><kwd>metallization</kwd><kwd>metallic iron</kwd><kwd>phosphorus</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">Smirnov K.I., Gamov P.A. Pyro-metallurgical processing of ilmenite concentrate with production of iron and titanium oxides. 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