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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">10.17073/0021-3438-2021-5-13-24</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1284</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 цветных металлов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy of Non-Ferrous Metals</subject></subj-group></article-categories><title-group><article-title>Физико-химические закономерности автоклавного выщелачивания сульфидного цинкового концентрата в присутствии лигносульфоната</article-title><trans-title-group xml:lang="en"><trans-title>Physical and chemical regularities of zinc sulfide concentrate pressure leaching in the presence of lignosulfonate</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Колмачихина</surname><given-names>Э. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kolmachikhina</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. техн. наук, вед. инженер кафедры металлургии цветных металлов</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), senior engineer of the Department of non-ferrous metallurgy</p><p>620002, Russia, Ekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">e.b.khazieva@urfu.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>Луговицкая</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lugovitskaya</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. техн. наук, доцент-исследователь кафедры металлургии цветных металлов</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), assistant prof. of the Department of non-ferrous metallurgy</p><p>620002, Russia, Ekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">t.n.lugovitskaya@urfu.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>Третьяк</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tret’yak</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аспирант кафедры металлургии цветных металлов</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Postgraduate student of the Department of non-ferrous metallurgy</p><p>620002, Russia, Ekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">mtretyak144@gmail.com</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>Наумов</surname><given-names>К. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Naumov</surname><given-names>K. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канд. техн. наук, инженер кафедры металлургии цветных металлов</p><p>620002, г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), engineer of the Department of non-ferrous metallurgy</p><p>620002, Russia, Ekaterinburg, Mira str., 19</p></bio><email xlink:type="simple">naumov.konstantin@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет (УрФУ) им. первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University</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>10</month><year>2021</year></pub-date><volume>27</volume><issue>5</issue><fpage>13</fpage><lpage>24</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Колмачихина Э.Б., Луговицкая Т.Н., Третьяк М.А., Наумов К.Д., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Колмачихина Э.Б., Луговицкая Т.Н., Третьяк М.А., Наумов К.Д.</copyright-holder><copyright-holder xml:lang="en">Kolmachikhina E.B., Lugovitskaya T.N., Tret’yak M.A., Naumov K.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/1284">https://cvmet.misis.ru/jour/article/view/1284</self-uri><abstract><p>Изучены физико-химические закономерности автоклавного окислительного сернокислотного выщелачивания сульфидного цинкового концентрата. Установлено влияние концентрации лигносульфоната (СЛСН = 0,2÷0,8 г/дм3), продолжительности выщелачивания (τ = 20÷120 мин), температуры (Т = 393÷423 К) и парциального давления кислорода (РО2= 0,3÷0,7 МПа) на степень извлечения цинка и железа в раствор, а также на гранулометрический состав кеков. Показано, что введение ЛСН позволяет интенсифицировать процессы извлечения цинка и железа. За 120 мин выщелачивания при СЛСН = 0,6÷0,8 г/дм3 максимальное извлечение цинка составляет 89 %, железа – 37 %. Частный порядок реакции по лигносульфонату для сфалеритаравен 0,3, для сульфидов железа – 0,9. Выявлено неоднозначное влияние повышения температуры на исследуемый процесс. Увеличение температуры с 413 до 423 К приводит к снижению извлечения цинка на 3–4 % вследствие формирования серосульфидных агрегатов крупностью более 150 мкм. Рассчитаны величины кажущейся энергии активации (Еа) выщелачивания сфалерита и сульфидов железа в присутствии лигносульфоната – соответственно 30 и 45 кДж/моль. Обнаружено, что увеличение парциального давления кислорода с 0,3 до 0,5 МПа оказывает положительное влияние на выщелачивание и позволяет повысить извлечение в раствор цинка (на 22 %) и железа (на 27 %). Однако при повышении парциального давления кислорода до 0,7 МПа в присутствии ЛСН после 40 мин ведения процесса отмечалось снижение скорости выщелачивания сульфида цинка, что могло быть связано с деструкцией лигносульфоната. Выявлено, что величины частных порядков реакций выщелачивания по кислороду составляют 1,2 для сфалерита и 2,5 для сульфидов железа.</p></abstract><trans-abstract xml:lang="en"><p>The study covers physical and chemical regularities of zinc sulfide concentrate oxygen pressure leaching in sulfuric acid. The effect of lignosulfonate concentration (CLSN = 0.2÷0.8 g/dm3), leaching time (τ = 20÷120 min), temperature (T = 393÷423 K), and oxygen partial pressure (РО2= 0.3÷0.7 MPa) on the degree of zinc and iron extraction into the solution and on the cake grain-size distribution was established. It was shown that lignosulfonate additive intensifies zinc and iron extraction into the solution. Maximum extraction of zinc and iron was 89 and 37 %, respectively, for 120 min of leaching at CLSN = 0.6÷0.8 g/dm3. The differential rate law with respect to lignosulfonate was 0.3 for sphalerite, and 0.9 for iron sulfides. A controversial influence of rising temperature on the process under investigation was found. Temperature elevation from 413 to 423 K leads to a decrease in zinc extraction by 3–4 % due to the formation of sulfur-sulfide aggregates over 150 μm in size. The calculated values of apparent activation energy (Еа) of sphalerite and iron sulfide leaching in the presence of lignosulfonate were 30 and 45 kJ/mole, respectively. It was found out that an increase in oxygen partial pressure from 0.3 to 0.5 MPa has a positive influence on leaching and increases extraction of zinc and iron by 22 and 27 %, respectively. However, an increase in oxygen partial pressure up to 0.7 MPa in the presence of lignosulfonate after 40 min of leaching led to a decrease in leaching rate, possibly as a result of lignosulfonate destruction. It was found that differential rate laws with respect to oxygen are 1.2 for sphalerite and 2.5 for iron sulfides.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>автоклавное выщелачивание</kwd><kwd>лигносульфонат</kwd><kwd>кинетика</kwd><kwd>сфалерит</kwd><kwd>кажущаяся энергия активации</kwd><kwd>порядок реакции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pressure leaching</kwd><kwd>lignosulfonate</kwd><kwd>kinetics</kwd><kwd>sphalerite</kwd><kwd>apparent activation energy</kwd><kwd>rate law</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках реализации проекта НОЦ «Передовые производственные технологии и материалы», номер проекта 075-03-2021-051/5</funding-statement><funding-statement xml:lang="en">The research was conducted as part of Research and Educational Center «Advanced Production Technologies and Materials» Project № 075-03-2021-051/5.</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">Wood J., Wilson D., Hughes S. 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