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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2021-16-5-438-447</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-1753</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="en"><subject>CHEMISTRY AND TECHNOLOGY OF INORGANIC MATERIALS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ НЕОРГАНИЧЕСКИХ МАТЕРИАЛОВ</subject></subj-group></article-categories><title-group><article-title>Application of pulse current for dissolution of heat-resistant GS32-VI alloy</article-title><trans-title-group xml:lang="ru"><trans-title>Применение импульсного тока для растворения жаропрочного сплава ЖС32-ВИ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0543-7474</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> к.т.н., доцент, доцент кафедры химии и технологии редких элементов им. К.А. Большакова </p><p>119571, Россия, Москва, пр-т Вернадского, 86</p><p>Scopus Author ID 8961258100 </p></bio><bio xml:lang="en"><p> Cand. Sci. (Eng.), Associate Professor, K.A. Bolshakov Department of Chemistry and Technology of Rare Elements, </p><p>86, Vernadskogo pr., Moscow, 119571, Russia</p><p>Scopus Author ID 8961258100</p></bio><email xlink:type="simple">oxcher@mitht.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>Елемесов</surname><given-names>Т. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Yelemessov</surname><given-names>T. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p> младший научный сотрудник лаборатории нового оборудования и материалов </p><p>050012, Республика Казахстан, г. Алматы, ул. Богенбай  батыра, д. 168 </p></bio><bio xml:lang="en"><p> Junior Researcher, Laboratory of New Equipment and Materials</p><p>168, Bogenbai Batyr st., Almaty, 050012, Republic of Kazakhstan</p></bio><email xlink:type="simple">baseke@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1702-9435</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дробот</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Drobot</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> д.х.н., профессор, профессор кафедры химии и технологии редких элементов им. К.А. Большакова </p><p>119571, Россия, Москва, пр-т Вернадского, 86</p><p>Scopus Author ID 35580931100, Researcher ID AAR-3711-2019 </p></bio><bio xml:lang="en"><p> Dr. Sci. (Chem.), Professor, K.A. Bolshakov Department of Chemistry and Technology of Rare Elements</p><p>86, Vernadskogo pr., Moscow, 119571, Russia</p><p>Scopus Author ID 35580931100, Researcher ID AAR-3711-2019</p></bio><email xlink:type="simple">dvdrobot@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт тонких химических технологий им. М.В. Ломоносова ФГБОУ ВО «МИРЭА – Российский&#13;
технологический университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт высоких технологий</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Institute of High Technologies</institution><country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт тонких химических технологий им. М.В. Ломоносова ФГБОУ ВО «МИРЭА – Российский технологический университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>MIREA – Russian Technological University (M.V. Lomonosov Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>28</day><month>11</month><year>2021</year></pub-date><volume>16</volume><issue>5</issue><fpage>438</fpage><lpage>447</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Chernyshova O.V., Yelemessov T.B., Drobot D.V., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Чернышова О.В., Елемесов Т.Б., Дробот Д.В.</copyright-holder><copyright-holder xml:lang="en">Chernyshova O.V., Yelemessov T.B., Drobot D.V.</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://www.finechem-mirea.ru/jour/article/view/1753">https://www.finechem-mirea.ru/jour/article/view/1753</self-uri><abstract><p>Objectives. To identify the regularities of electrochemical processing of the heat-resistant GS32-VI alloy in a sulfuric acid electrolyte with a concentration of 100 g/dm3 under the action of a pulsed current in a pulsed mode.Methods. Using the electrochemical technological complex EHK-1012 (developed by IP Tetran) and a non-compensatory method of measuring potential, polarization and depolarization curves with a change in pulse duration and a pause between them were recorded. The current pulses had an amplitude ranging from 0 to 3.5 A (when recording the polarization and depolarization curves), pulse durations ranging from 200 to 1200 ms, and a pause (delay) between pulses ranging from 50 to 500 ms. There were no reverse current pulses.Results. The parameters of the current program that provide the maximum values of the alloy dissolution rate and current output were determined: with a current pulse amplitude of 2 A, a current pulse duration of 500 ms, and a pause duration between pulses of 250 ms, the maximum dissolution rate of the alloy is 0.048 g/h·cm2, while the current output for nickel is 61.6% with an anode area of 10 cm2. The basic technological scheme for processing the heat-resistant GS32-VI alloy, which includes anodic alloy dissolution in a pulsed mode, is proposed.Conclusions. Electrochemical dissolution of GS32-VI alloy under pulsed current action results in an optimal dissolution rate ratio of the alloy components, ensuring the production of a cathode precipitate with a total nickel and cobalt content of 97.5%.</p></abstract><trans-abstract xml:lang="ru"><p>Цели. Выявить закономерности электрохимической переработки жаропрочного сплава ЖС32-ВИ, проводимой в импульсном режиме в сернокислом электролите с концентрацией 100 г/дм3 под действием импульсного тока.Методы. Снятие поляризационных и деполяризационных кривых с изменением длительности импульса и паузы между ними проводили с помощью электрохимического технологического комплекса ЭХК-1012 (разработан ООО ИП «Тетран»), использующего некомпенсационный способ измерения потенциала. Амплитуда импульсов тока находилась в диапазоне значений от 0 до 3.5 А (при снятии поляризационных и деполяризационных кривых), длительности импульсов изменялись от 200 до 1200 мс, пауза (задержка) между импульсами – от 50 до 500 мс, импульсы реверсивного тока отсутствовали.Результаты. Определены параметры токовой программы, обеспечивающие максимальные значения скорости растворения сплава и выхода по току. При амплитуде импульса тока 2 А, длительности импульса тока 500 мс и продолжительности паузы между импульсами 250 мс максимальная скорость растворения сплава 0.048 г/ч·см2, при этом выход по току для никеля равен 61.6% при площади анода 10 см2. Предложена принципиальная технологическая схема переработки жаропрочного сплава ЖС32-ВИ, включающая анодное растворение сплава в импульсном режиме.Выводы. Электрохимическое растворение сплава ЖС32-ВИ под действием импульсного тока способствует оптимальному соотношению скоростей растворения составляющих сплава, что обеспечивает получение катодного осадка с суммарным содержанием никеля и кобальта 97.5%.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>импульсный ток</kwd><kwd>серная кислота</kwd><kwd>сплав ЖС32-ВИ</kwd><kwd>поляризационная и деполяризационная кривые</kwd><kwd>амплитуда импульса тока</kwd><kwd>длительность импульса тока</kwd><kwd>пауза между импульсами тока</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pulse current</kwd><kwd>sulfuric acid</kwd><kwd>GS32-VI alloy</kwd><kwd>polarization and depolarization curves</kwd><kwd>amplitude of pulse current</kwd><kwd>duration of pulse current</kwd><kwd>pause between pulse current</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">Lutz L.J., Parker S.A., Stephenson J.B. 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