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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">10.21285/1814-3520-2023-4-809-820</article-id><article-id custom-type="edn" pub-id-type="custom">XVGAMM</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-765</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGY</subject></subj-group></article-categories><title-group><article-title>Сравнение способов повышения извлечения золота из золотосодержащих концентратов двойной упорности в технологии автоклавного окисления</article-title><trans-title-group xml:lang="en"><trans-title>Comparison of methods for enhancing gold recovery from double refractory concentrates using the technology of autoclave oxidation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2382-5235</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петров Георгий Валентинович, д.т.н., профессор, профессор кафедры металлургии</p><p>199106, г. Санкт-Петербург, 21-я линия В.О., 2</p></bio><bio xml:lang="en"><p>Georgii V. Petrov,  Dr. Sci. (Eng.), Professor, Professor of the Metallurgy Department</p><p>2, 21st Line, St. Petersburg 199106</p></bio><email xlink:type="simple">petroffg@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/0000-0002-1381-7808</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гордеев</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gordeev</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гордеев Даниил Валерьевич, аспирант</p><p>199106, г. Санкт-Петербург, 21-я линия В.О., 2</p></bio><bio xml:lang="en"><p>Daniil V. Gordeev, Postgraduate Student</p><p>2, 21st Line, St. Petersburg 199106</p></bio><email xlink:type="simple">danya.gordeev.2014@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/0009-0006-8938-1744</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бекирова</surname><given-names>В. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Bekirova</surname><given-names>V. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бекирова Вероника Руслановна, магистрант</p><p>199106, г. Санкт-Петербург, 21-я линия В.О., 2</p></bio><bio xml:lang="en"><p>Veronika R. Bekirova, Master's Degree Student</p><p>2, 21st Line, St. Petersburg 199106</p></bio><email xlink:type="simple">lalalen00@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский горный университет императрицы Екатерины II</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg Mining University named after the Empress Catherine II</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>10</day><month>01</month><year>2024</year></pub-date><volume>27</volume><issue>4</issue><fpage>809</fpage><lpage>820</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Петров Г.В., Гордеев Д.В., Бекирова В.Р., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Петров Г.В., Гордеев Д.В., Бекирова В.Р.</copyright-holder><copyright-holder xml:lang="en">Petrov G.V., Gordeev D.V., Bekirova V.R.</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/765">https://ipolytech.elpub.ru/jour/article/view/765</self-uri><abstract><p>Цель исследования заключалась в поиске наиболее универсальной и оптимальной технологии, которая позволит значительно минимизировать влияние органического углерода на извлечение золота из дважды упорного сырья. В работе были протестированы 3 дважды упорных золотосульфидных концентрата различных месторождений с содержанием золота от 23,5 до 40,9 г/т и с содержанием общего углерода в материале от 1,2 до 9,5% масс. Термическая обработка проводилась в трубчатой вращающейся печи, обеспечивающей постоянное поддержание заданной температуры в реакторе и скорости вращения. Измельчение исходного концентрата проводили в виде пульпы в планетарной мельнице Pulverisette 6 «Fritsch». Автоклавное окисление – в титановых автоклавах Premex и Büchi.  Установлено, что наиболее эффективной является технология автоклавного окисления с добавкой вторичного окислителя, поскольку с ее помощью возможно добиться увеличения извлечения золота до 97%. Также технология высокотемпературного автоклавного окисления продемонстрировала высокие показатели, однако для их достижения необходимо значительное увеличение времени пребывания материала в автоклаве (до 120 мин) при повышенных температурах. Показано, что термическая обработка в целом позволяет добиться небольшого прироста в извлечении золота (до 4%), и ее можно рассматривать как дополнительный передел совместно с другой технологией из проанализированных в данной работе, но не в качестве самодостаточного технологического решения. Проведенные исследования выявили, что предварительная термическая обработка концентратов, поступающих на автоклавное окисление, показывает положительный эффект; высокотемпературное автоклавное окисление концентратов с различным содержанием углерода позволяет обеспечить высокое извлечение золота для высокоуглеродистых концентратов; использование вторичного окислителя (в виде азотной кислоты) также оказывает положительное влияние на извлечение золота. Высокая эффективность технологии применительно к концентратам с различным содержанием углеродистого вещества позволяет рекомендовать ее для проведения дальнейших исследований.</p></abstract><trans-abstract xml:lang="en"><p>The study aims to investigate the most efficient method for significant minimization of the impact of organic carbon on gold recovery from double refractory raw materials. We tested three double refractory gold-sulfide concentrates from different deposits with the content of gold from 23.5 to 40.9 g/t and total carbon from 1.2 to 9.5 wt %. Thermal treatment was carried out in a tubular rotary furnace that provided permanent temperature setting and rotation speed in the reactor. The initial concentrate was grinded as pulp in a Fritsch planetary mono mill Pulverisette 6. Autoclave oxidation was performed in Premex and Büchi titanium autoclaves. The technology of autoclave oxidation with the addition of a secondary oxidizer was found to be the most efficient, since it can increase gold recovery up to 97%. Another technology – hightemperature autoclave oxidation – also proved high performance; however, a significant increase in the residence time of the material in the autoclave (up to 120 min) at elevated temperatures is required to achieve this performance. According to the results, thermal treatment in general can provide a small increase in gold recovery (up to 4%). Due to this, it can be used as an additional processing with other methods analyzed in this article rather than as a self-sufficient technological solution. The studies revealed that the preliminary thermal treatment of concentrates entering autoclave oxidation shows a positive effect; high-temperature autoclave oxidation of concentrates with different carbon content provides high gold recovery for high-carbon concentrates; the use of a secondary oxidizer (in the form of nitric acid) also benefits the gold recovery. The high efficiency of the technology for concentrates with different carbon content allows us to recommend it for further research.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>золото</kwd><kwd>упорные руды</kwd><kwd>preg-robbing</kwd><kwd>термическая обработка</kwd><kwd>азотная кислота</kwd><kwd>углерод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gold</kwd><kwd>refractory ores</kwd><kwd>preg-robbing</kwd><kwd>heat treatment</kwd><kwd>nitric acid</kwd><kwd>carbon</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">Захаров Б.А., Меретуков М.А. Золото: упорные руды. М.: Руда и металлы, 2013. 452 с.</mixed-citation><mixed-citation xml:lang="en">Zakharov B.A., Meretukov M.A. Gold: refractory ores. Moscow: Ruda i metally; 2013, 452 р. 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