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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">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ МИСИС</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2023-5-25-33</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1527</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 редких и благородных металлов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy of Rare and Precious Metals</subject></subj-group></article-categories><title-group><article-title>Окислительное выщелачивание рения из шлифотходов ренийсодержащих суперсплавов</article-title><trans-title-group xml:lang="en"><trans-title>Oxidative leaching of rhenium from grinding waste of rhenium-containing superalloys</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8354-0018</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тарганов</surname><given-names>И. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Targanov</surname><given-names>I. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Игорь Евгеньевич Тарганов – аспирант кафедры технологии редких элементов и наноматериалов (ТРЭН)</p><p>125047, Россия, г. Москва, Миусская пл., 9</p></bio><bio xml:lang="en"><p>Igor E. Targanov – Postgraduate Student of the Department of Technology of Rare Elements and Nanomaterials (TREN)</p><p>9 Miusskaya Sq., Moscow, 125047</p></bio><email xlink:type="simple">targanov.igor@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/0009-0009-3497-160X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Солодовников</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Solodovnikov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Александрович Солодовников – студент кафедры ТРЭН </p><p>125047, Россия, г. Москва, Миусская пл., 9</p></bio><bio xml:lang="en"><p>Maksim A. Solodovnikov – Student of the Department of TREN</p><p>9 Miusskaya Sq., Moscow, 125047</p></bio><email xlink:type="simple">solodovnikovmaksim1@gmail.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/0000-0002-5523-0247</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трошкина</surname><given-names>И. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Troshkina</surname><given-names>I. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ирина Дмитриевна Трошкина – д.т.н., профессор кафедры ТРЭН </p><p>125047, Россия, г. Москва, Миусская пл., 9</p></bio><bio xml:lang="en"><p>Irina D. Troshkina – Dr. Sci. (Eng.), Professor of the Department of TREN</p><p>9 Miusskaya Sq., Moscow, 125047</p></bio><email xlink:type="simple">troshkina.i.d@muctr.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский химико-технологический университет им. Д.И. Менделеева</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mendeleev University of Chemical Technology of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>20</day><month>10</month><year>2023</year></pub-date><volume>29</volume><issue>5</issue><fpage>25</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тарганов И.Е., Солодовников М.А., Трошкина И.Д., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Тарганов И.Е., Солодовников М.А., Трошкина И.Д.</copyright-holder><copyright-holder xml:lang="en">Targanov I.E., Solodovnikov M.A., Troshkina I.D.</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://cvmet.misis.ru/jour/article/view/1527">https://cvmet.misis.ru/jour/article/view/1527</self-uri><abstract><p>В агитационном режиме исследована возможность окислительного выщелачивания рения в присутствии соляной кислоты из отходов механической обработки (шлифотходов) изделий из Re-содержащего жаропрочного сплава ЖС-32ВИ на основе никеля. Использовали фракцию шлифотходов –0,071 мм с наибольшим выходом (49,2 мас.%). Процесс извлечения рения осуществляли в двух вариантах: в первом – шлифотходы контактировали с раствором соляной кислоты при температуре ~100 °С, после охлаждения раствора выщелачивания в него добавляли раствор пероксида водорода; во втором – выщелачивание проводили с применением раствора соляной кислоты с порционным добавлением раствора пероксида водорода. Наибольшее значение степени извлечения рения (91,0 %) наблюдалось при выщелачивании в первом варианте, начальная концентрация соляной кислоты составила 8 М, мольное соотношение добавляемых реагентов – ν(HCl) : ν(H2O2) = 2,7 : 1,0. Была изучена кинетика выщелачивания никеля раствором соляной кислоты (6 М) при температуре 70 °С и соотношении фаз шлифотход : раствор, равном 1 г : 50 мл. Анализ обработки кинетических данных с использованием моделей «сжимающейся сферы», Гинстлинга–Броунштейна и Казеева–Ерофеева позволяет утверждать, что процесс выщелачивания никеля протекает в кинетической области. Исследована кинетика выщелачивания рения из твердого остатка солянокислого выщелачивания никеля из шлифотходов. Применение для обработки данных тех же кинетических моделей позволяет выделить диффузию пероксида водорода в ренийсодержащем твердом остатке как лимитирующую стадию. </p></abstract><trans-abstract xml:lang="en"><p>The study investigated the feasibility of oxidative leaching rhenium in the presence of hydrochloric acid from machining waste (grinding waste) derived from products made of ZhS-32VI, a nickel-based heat-resistant alloy containing rhenium. This was achieved through agitation leaching process. The grinding waste fraction size of –0.071 mm, which accounted for the highest yield (49.2 wt.%), was utilized in the experiments. The rhenium leaching process was conducted in two variations: in the first option, grinding waste was mixed with a hydrochloric acid solution at ~100 °C, followed by the addition of hydrogen peroxide to the leaching solution after it had cooled; in the second option, leaching was performed using a hydrochloric acid solution with the gradual addition of hydrogen peroxide solution. The highest degree of rhenium leaching (91.0 %) was achieved in the first option. In this case, the initial concentration of hydrochloric acid was 8 M, and the molar ratio of the added reagents was ν(HCl): ν(H2O2) = 2.7 : 1.0. The kinetics of nickel leaching using a 6 M hydrochloric acid solution at 70 °C, with a solid-to-liquid phase ratio of 1 g : 50 ml, was also examined. The analysis of the kinetic data, processed using the “contracting sphere,” Ginstling–Brounshtein, and Kazeev–Erofeev models, indicates that the nickel leaching process occurs within the kinetic region. Additionally, the kinetics of rhenium leaching from the solid residue obtained after the hydrochloric acid leaching of nickel from grinding waste was investigated. Employing the same kinetic models to analyze the data, it was determined that the limiting stage of this process involves the diffusion of hydrogen peroxide within the rhenium-containing solid residue. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>рений</kwd><kwd>никель</kwd><kwd>суперсплавы</kwd><kwd>шлифотходы</kwd><kwd>выщелачивание</kwd><kwd>соляная кислота</kwd><kwd>окислитель</kwd><kwd>кинетика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>rhenium</kwd><kwd>nickel</kwd><kwd>superalloys</kwd><kwd>grinding waste</kwd><kwd>leaching</kwd><kwd>hydrochloric acid</kwd><kwd>oxidizing agent</kwd><kwd>kinetics</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">Каблов Е.Н., Бондаренко Ю.А., Колодяжный М.Ю., Сурова В.А., Нарский А.Р. Перспективы создания высокотемпературных жаропрочных сплавов на основе тугоплавких матриц и естественных композитов. 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