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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">10.17073/0021-3438-2025-4-5-17</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1733</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>Обогащение руд цветных металлов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Mineral Processing of Non-Ferrous Metals</subject></subj-group></article-categories><title-group><article-title>Оценка влияния композиции металлосодержащих модификаторов с сернистым натрием на селективность флотационного разделения сульфидов меди и цинка</article-title><trans-title-group xml:lang="en"><trans-title>Effect of metal-containing modifier compositions with sodium sulfide on the selective flotation of copper and zinc sulfides</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2040-2552</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>У</surname><given-names>Хтет Зо</given-names></name><name name-style="western" xml:lang="en"><surname>Oo</surname><given-names>Htet Zaw</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хтет Зо У – аспирант кафедры обогащения полезных ископаемых (ОПИ), НИТУ МИСИС.</p><p>119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Htet Zaw Oo – Postgraduate Student of the Department of Mineral Processing, National University of Science and Technology “MISIS” (NUST MISIS).</p><p>1 Bld, 4 Leninskiy Prosp., Moscow 119049</p></bio><email xlink:type="simple">htetzawoo68099@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/0000-0003-4364-9574</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яа</surname><given-names>Чжо Зай</given-names></name><name name-style="western" xml:lang="en"><surname>Ya</surname><given-names>Kyaw Zay</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чжо Зай Яа – к.т.н., стажер-докторант кафедры ОПИ, НИТУ МИСИС.</p><p>119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Kyaw Zay Ya – Cand. Sci. (Eng.), Intern-Doctoral Student of the Department of Mineral Processing, NUST MISIS.</p><p>1 Bld, 4 Leninskiy Prosp., Moscow 119049</p></bio><email xlink:type="simple">kokyawgyi49@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/0000-0002-5164-5920</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горячев</surname><given-names>Б. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Goryachev</surname><given-names>B. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Борис Евгеньевич Горячев – д.т.н, профессор кафедры ОПИ, НИТУ МИСИС.</p><p>119049, г. Москва, Ленинский пр-т, 4, стр. 1</p></bio><bio xml:lang="en"><p>Boris E. Goryachev – Dr. Sci. (Eng.), Professor of the Depart- ment of Mineral Processing, NUST MISIS.</p><p>1 Bld, 4 Leninskiy Prosp., Moscow 119049</p></bio><email xlink:type="simple">beg@misis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСИС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>08</day><month>01</month><year>2026</year></pub-date><volume>31</volume><issue>4</issue><fpage>5</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; У Х.З., Яа Ч.З., Горячев Б.Е., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">У Х.З., Яа Ч.З., Горячев Б.Е.</copyright-holder><copyright-holder xml:lang="en">Oo H.Z., Ya K.Z., Goryachev B.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://cvmet.misis.ru/jour/article/view/1733">https://cvmet.misis.ru/jour/article/view/1733</self-uri><abstract><p>Разработаны наилучшие селективные реагентные режимы для флотации медно-цинковой колчеданной руды одного из месторождений Урала, основанные на применении композиций металлосодержащих реагентов-модификаторов в сочетании с сернистым натрием. Проанализированы наиболее эффективные условия флотации минералов меди и цинка от пирита в коллективном цикле флотации медно-цинковой руды, а также условия для повышения селективного разделения коллективного медно-цинкового концентрата. Оценено влияние композиций реагентов-модификаторов, вводимых в коллективный цикл флотации, на технологические показатели селективной флотации коллективного концентрата. Приведены результаты фракционного анализа флотируемости минералов меди, цинка и железа с учетом кинетики флотации и распределения этих минералов во флотируемый концентрат по фракциям: труднофлотируемой, среднефлотируемой и легкофлотируемой. Используемые композиции реагентов-модификаторов не только подавляли флотацию пирита, но и обеспечивали эффективное разделение минералов меди и цинка в отдельные концентраты. Установлено, что наиболее эффективное влияние на селективность флотационного разделения минералов меди и цинка оказывает дозирование композиции железного купороса и сульфида натрия в коллективную медно-цинковую флотацию в равных долях (50 и 50 г/т). В результате применения данной композиции реагентов получены медно-пиритный концентрат с содержанием меди 12 % при извлечении меди 74,45 % и цинковый концентрат с содержанием цинка 5 % при извлечении 73,68 % от руды. Анализ кинетики флотации показал, что введение указанной смеси реагентов способствует наилучшей скорости флотации меди, обеспечивая максимальное извлечение меди в пенный (медно-пиритный) продукт на уровне 86,74 %.</p></abstract><trans-abstract xml:lang="en"><p>The most efficient selective reagent modes for the flotation of a copper–zinc pyrite ore from one of the Ural deposits have been developed, based on the use of compositions of metal-containing reagent modifiers in combination with sodium sulfide. The study analyzed the most effective conditions for separating copper and zinc minerals from pyrite during the bulk flotation of copper–zinc ore, as well as the conditions for improving the selective separation of the bulk copper–zinc concentrate. The influence of reagent–modifier compositions introduced into the bulk flotation cycle on the process parameters of selective flotation of the bulk concentrate was evaluated. The results of fractional analysis of the floatability of copper, zinc, and iron minerals were presented, taking into account the flotation kinetics and the distribution of these minerals in the floated concentrate by fractions: poorly floatable, moderately floatable, and easily floatable. The reagent–modifier compositions used not only depressed pyrite flotation but also ensured efficient separation of copper and zinc minerals into individual concentrates. It was found that the most effective selectivity in flotation separation of copper and zinc minerals was achieved by introducing a composition of ferrous sulfate and sodium sulfide into the bulk copper–zinc flotation circuit in equal proportions (50 and 50 g/t). As a result, a copper–pyrite concentrate containing 12 wt. % Cu with a copper recovery of 74.45 % and a zinc concentrate containing 5 wt. % Zn with a zinc recovery of 73.68 % from the ore were obtained. Analysis of flotation kinetics showed that the introduction of this reagent mixture contributed to the highest flotation rate of copper, ensuring a maximum copper recovery to the froth (copper–pyrite) product of 86.74 %.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>медно-цинковые руды</kwd><kwd>извлечение</kwd><kwd>флотация</kwd><kwd>сернистый натрий</kwd><kwd>кинетика флотации</kwd><kwd>разделение</kwd><kwd>селективность</kwd><kwd>модификаторы</kwd><kwd>сульфиды</kwd></kwd-group><kwd-group xml:lang="en"><kwd>copper-zinc ores</kwd><kwd>recovery</kwd><kwd>flotation</kwd><kwd>sodium sulfide</kwd><kwd>flotation kinetics</kwd><kwd>separation</kwd><kwd>selectivity</kwd><kwd>modifiers</kwd><kwd>sulfides</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">Чантурия В.А., Шадрунова И.В. Технология обогащения медных и медно-цинковых руд Урала. 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