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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">ipolytech</journal-id><journal-title-group><journal-title xml:lang="ru">iPolytech Journal</journal-title><trans-title-group xml:lang="en"><trans-title>iPolytech Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-4004</issn><issn pub-type="epub">2782-6341</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/1814-3520-2021-6-773-781</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-551</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>МЕТАЛЛУРГИЯ И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGY AND MATERIALS SCIENCE</subject></subj-group></article-categories><title-group><article-title>Термодинамическое моделирование обжига сульфидного молибденового концентрата с гидроксидом кальция</article-title><trans-title-group xml:lang="en"><trans-title>Thermodynamic modelling of roasting of molybdenum sulphide concentrate with calcium hydroxide</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2404-5452</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алешин</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Aleshin</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алешин Дмитрий Сергеевич, аспирант, младший научный сотрудник, Лаборатория гетерогенных процессов</p><p>620016, г. Екатеринбург, ул. Амундсена, 101, Россия</p></bio><bio xml:lang="en"><p>Dmitriy S. Aleshin, Postgraduate student, Junior Researcher of the Laboratory of Heterogeneous Processes</p><p>101, Amundsen St., Yekaterinburg 620016, Russia</p></bio><email xlink:type="simple">dmitriy.aleshin1@yandex.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/0000-0002-7321-1509</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Крашенинин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Krasheninin</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Крашенинин Алексей Геннадьевич,кандидат технических наук, ведущий научный сотрудник, Лаборатория гетерогенных процессов</p><p>620016, г. Екатеринбург, ул. Амундсена, 101, Россия</p></bio><bio xml:lang="en"><p>Aleksey G. Krasheninin, Cand. Sci. (Eng.), Leading Researcher of the Laboratory of Heterogeneous Processes</p><p>101, Amundsen St., Yekaterinburg 620016, Russia</p></bio><email xlink:type="simple">agkrash@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/0000-0002-8401-7867</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зайцева</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaitseva</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Зайцева Полина Владимировна, кандидат химических наук, старший научный сотрудник, Лаборатория аналитической химии</p><p>620016, г. Екатеринбург, ул. Амундсена, 101, Россия</p></bio><bio xml:lang="en"><p>Polina V. Zaitseva, Cand. Sci. (Chem.), Senior Researcher of the Laboratory of Analytical Chemistry</p><p>101, Amundsen St., Yekaterinburg 620016, Russia</p></bio><email xlink:type="simple">zaitcevapolina@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/0000-0001-8610-8749</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Танутров</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Tanutrov</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Танутров Игорь Николаевич, доктор технических наук, главный научный сотрудник, Лаборатория гетерогенных процессов</p><p>620016, г. Екатеринбург, ул. Амундсена, 101, Россия</p></bio><bio xml:lang="en"><p>Igor. N. Tanutrov, Dr. Sci. (Eng.), Chief Researcher of the Laboratory of Heterogeneous Processes</p><p>101, Amundsen St., Yekaterinburg 620016, Russia</p></bio><email xlink:type="simple">intan38@live.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии Уральского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>01</month><year>2022</year></pub-date><volume>25</volume><issue>6</issue><fpage>773</fpage><lpage>781</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алешин Д.С., Крашенинин А.Г., Зайцева П.В., Танутров И.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Алешин Д.С., Крашенинин А.Г., Зайцева П.В., Танутров И.Н.</copyright-holder><copyright-holder xml:lang="en">Aleshin D.S., Krasheninin A.G., Zaitseva P.V., Tanutrov I.N.</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://ipolytech.elpub.ru/jour/article/view/551">https://ipolytech.elpub.ru/jour/article/view/551</self-uri><abstract><p>Цель – определение условий формирования CaMoO4, CaSO4, Ca(ReO4)2 при окислении MoS2 и ReS2 в присутствии Ca(ОН)2. В качестве исходного сырья для термодинамического моделирования окислительного обжига в присутствии добавки Ca(ОH)2 выбран концентрат Южно-Шамейского месторождения, расположенного в Свердловской области, с содержанием 37% масс. Мо и 0,005% масс. Re. Термодинамическое моделирование по определению оптимального количества кальцийсодержащей добавки проводили при следующих массовых соотношениях: молибденовый концентрат : Ca(ОH)2 = 1:0,8, 1:1, 1:1,2 и 1:1,5 в диапазоне температур 100–800°С, с шагом 100°С, давлении системы 0,1 МПа в атмосфере воздуха (мольное соотношение: молибденовый концентрат + Ca(ОH)2 : воздух = 1:5). Данные по содержанию всех компонентов в пробе вводились в программный комплекс HSC 6.1 в молях. Показаны основные реакции окислительного обжига молибденового концентрата в присутствии гидроксида кальция. Установлено, что основными фазами, образующимися в результате обжига, являются СаSO4, СаSO3, МоO3, CaMoO4, CaMoO3, CaReO4. Изучено влияние температуры на образование основных газообразных продуктов при различном массовом соотношении молибденового концентрата и Ca(ОH)2. Установлено, что при соотношении в пробе 1:1 молибденового концентрата и Ca(ОH)2 до 600°С не наблюдается выделения сернистого ангидрида выше значений предельно допустимых концентраций. На основе рассчитанных термодинамических данных выполнено моделирование процесса обжига молибденового концентрата с гидроксидом кальция. Установлено оптимальное соотношение, необходимое для успешного протекания процесса: молибденовый концентрат : Ca(ОH)2 = 1:1 по массе. Термодинамическое моделирование показало, что в интервале температур 100–600°С при использовании Са(ОН)2 не происходит потерь рения и молибдена, выделение серы не превышает 10 мг/м3</p></abstract><trans-abstract xml:lang="en"><p>This work aims to determine the conditions for the CaMoO4, CaSO4, Ca(ReO4)2 formation during oxidation of MoS2 and ReS2 in the presence of Ca(ОН)2. The concentrate from the Yuzhno-Shameyskoye deposit in the Sverdlovsk region, having 37% wt. Мо and 0.005% wt. Re, was selected as a feedstock for thermodynamic modelling of sweet roasting in the presence of Ca(OH)2. To determine the optimal amount of calcium-containing additives, the thermodynamic modelling was carried out using the following mass ratios: molybdenum concentrate: Ca(OH)2 = 1:0.8, 1:1, 1:1.2 and 1:1.5 in the temperature range of 100–800°С, with a step of 100°С, system pressure of 0.1 MPa in the air (molar ratio: molybdenum concentrate + Ca(OH)2: air = 1:5). The content of all sample components in moles was entered into the HSC 6.1 software package. The main reactions associated with the sweet roasting of molybdenum concentrate in the presence of calcium hydroxide were shown. It was established that the main phases formed as a result of roasting comprise CaSO4, CaSO3, MoO3, CaMoO4, CaMoO3 and CaReO4. The effect of temperature on the formation of the main gaseous products was studied under different mass ratios of molybdenum concentrate and Ca(OH)2. It was found that up to 600°C, with molybdenum concentrate to Ca(OH)2 ratio of 1:1, the concentrations of released sulphurous anhydride are lower than the maximum permissible concentrations. The calculated thermodynamic data was used for modelling the roasting process of molybdenum concentrate with calcium hydroxide. An optimal ratio necessary for the successful process operation was established: molybdenum concentrate: Ca(OH)2 = 1:1 by weight. Thermodynamic modelling showed that, in the temperature range of 100–600°С when using Ca(OH)2, no rhenium and molybdenum loss is observed, the release of sulfur is less than 10 mg/m3.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>производство молибдена</kwd><kwd>сульфидный молибденовый концентрат</kwd><kwd>пылегазоочистка</kwd><kwd>энергия Гиббса</kwd><kwd>сернистый ангидрид</kwd><kwd>обжиг молибденового концентрата</kwd></kwd-group><kwd-group xml:lang="en"><kwd>molybdenum production</kwd><kwd>sulfide molybdenum concentrate</kwd><kwd>dust and gas purification</kwd><kwd>Gibbs energy</kwd><kwd>sulfur dioxide</kwd><kwd>roasting of molybdenum concentrate</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">Зеликман А. Н. Молибден. М.: Изд-во «Металлургия», 1970. 441 с.</mixed-citation><mixed-citation xml:lang="en">Zelikman A.N. Molybdenum. Moscow: Metallurgiya; 1970. 441 р. 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