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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">10.21285/1814-3520-2021-3-391-401</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-496</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 И МАТЕРИАЛОВЕДЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGY AND MATERIALS SCIENCE</subject></subj-group></article-categories><title-group><article-title>Исследование процессов сгущения продуктов обогащения золотосодержащих руд</article-title><trans-title-group xml:lang="en"><trans-title>Research into thickening processes of concentrates of gold-bearing ores</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>Чернигов</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernigov</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернигов Дмитрий Александрович, магистрант, Иркутский национальный исследовательский технический университет; старший инженер Инженерно-Коммерческого центра, АО «Иргиредмет»</p><p>664074, г. Иркутск, ул. Лермонтова, 83664025, г. Иркутск, б-р Гагарина, 38</p></bio><bio xml:lang="en"><p>Dmitriy A. Chernigov, Master’s Degree Student, Irkutsk National Research Technical University; Senior Engineer of the Engineering and Commercial Centre, JSC Irgiredmet</p><p>83 Lermontov St., Irkutsk 66407438 Gagarin Boulevard, Irkutsk 664025</p></bio><email xlink:type="simple">dchernigov@mail.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>Богородский</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogorodskiy</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Богородский Андрей Владимирович, кандидат технических наук, старший научный сотрудник Лаборатории металлургии</p><p>664025, г. Иркутск, б-р Гагарина, 38</p></bio><bio xml:lang="en"><p>Andrey V. Bogorodskiy, Cand. Sci. (Eng.), Senior Researcher of the Metallurgy Laboratory</p><p>38 Gagarin Boulevard, Irkutsk 664025</p></bio><email xlink:type="simple">bav@irgiredmet.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Набиулин</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Nabiulin</surname><given-names>R. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Набиулин Руслан Нурлович, научный сотрудник Лаборатории металлургии</p><p>664025, г. Иркутск, б-р Гагарина, 38</p></bio><bio xml:lang="en"><p>Ruslan N. Nabiulin, Researcher of the Metallurgy Laboratory</p><p>38 Gagarin Boulevard, Irkutsk 664025</p></bio><email xlink:type="simple">r_nabiulin@irgiredmet.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Минеева</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mineeva</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минеева Татьяна Султановна, кандидат технических наук, доцент, доцент кафедры металлургии цветных металлов</p><p>664074, г. Иркутск, ул. Лермонтова, 83</p></bio><bio xml:lang="en"><p>Tatiana S. Mineeva, Cand. Sci. (Eng.), Associate Professor, Associate Professor of the Non-Ferrous Metals Department</p><p>83 Lermontov St., Irkutsk 664074</p></bio><email xlink:type="simple">_ksu_@inbox.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет; Иркутский научно-исследовательский институт благородных и редких металлов и алмазов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University; Irkutsk Research Institute оf Precious and Rare Metals and Diamonds</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Иркутский научно-исследовательский институт благородных и редких металлов и алмазов</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk Research Institute оf Precious and Rare Metals and Diamonds</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical 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>06</day><month>07</month><year>2021</year></pub-date><volume>25</volume><issue>3</issue><fpage>391</fpage><lpage>401</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чернигов Д.А., Богородский А.В., Набиулин Р.Н., Минеева Т.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Чернигов Д.А., Богородский А.В., Набиулин Р.Н., Минеева Т.С.</copyright-holder><copyright-holder xml:lang="en">Chernigov D.A., Bogorodskiy A.V., Nabiulin R.N., Mineeva T.S.</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/496">https://ipolytech.elpub.ru/jour/article/view/496</self-uri><abstract><p>Цель – совершенствование процесса сгущения флотационного концентрата ультратонкого помола в технологии переработки упорной сульфидной золотосодержащей руды одного из месторождений Южного Урала на основе использования эффективных флокулянтов. Химический состав руды изучен при помощи гравиметрического, атомно-абсорбционного, химического, рентгенофлуоресцентного, пробирного и микрорентгеноспектрального методов анализа. Гранулометрический анализ флотокоцентрата, подвергнутого сверхтонкому измельчению, производился с помощью анализатора Malvern Hydro Mastersizer 2000MU (производства Malvern Panalytical Limited, Великобритания). В экспериментах по сгущению использовались пробы одинакового состава после технологического сверхтонкого измельчения. В результате аналитических исследований вещественного состава исследуемого материала установлено, что содержание золота в руде составляет 22,8 г/т. Достигнутая крупность основного класса продукта не менее 92% составляет -20 мкм. В результате проведенных лабораторных тестов, выполненных на восьми образцах флокулянтов на основе полиакриламида, был выявлен оптимально подходящий флокулянт марки А44 (производства Китайской Народной Республики). Данный флокулянт отвечает необходимым требованиям по показателям минимального расхода, скорости осаждения и отношению Ж:Т. На основе полученных данных была рассчитана и определена зависимость удельной производительности радиального сгустителя марки JX20 (производства JPMFex Corporate Limited, Китайская Народная Республика). Установлено, что оптимальный расход флокулянта составляет 200 г/т на 1 т сгущаемого материала, что способствует сгущению 50 т пульпы с 1 м2 сгустителя в сутки. Вышеуказанный флокулянт А44 рекомендован для проведения опытно-промышленных испытаний. Таким образом, для интенсификации процесса обезвоживания руд после сверхтонкого измельчения необходимы разработка, опробование и внедрение принципиально новых реагентов и совершенствование существующих технологий переработки золотосодержащих руд и концентратов.</p></abstract><trans-abstract xml:lang="en"><p>The aim was to improve the thickening of an ultra-fine flotation concentrate by efficient flocculants when processing refractory sulphide gold-bearing ores from South Urals deposits. The chemical ore composition was studied using gravimetric, atomic absorption, chemical, X-ray fluorescent, assay test and electron microprobe analytical methods. Particle size analysis of the ultra-fine flotation concentrate under study was performed using a Malvern Hydro Mastersizer 2000MU analyser (Malvern Panalytical Ltd, UK). In thickening experiments, samples with the same composition after the ultra-fine grinding process were used. The gold content in the ore was determined (22.8 g/t) based on analytical studies on the material composition of samples. At least 92% of the final grain size class is -20 microns. Laboratory tests performed on eight samples containing polyacrylamide-based flocculants revealed an optimal A44 flocculant (produced in China). The flocculant meets the requirements for minimum flow rate, deposition rate and L:S ratio. The specific performance of the JX20 radial thickener (JPMFex Corp. Ltd., China) was calculated. The optimal flocculant flow rate is 200 g/t per 1 t of thickened material, leading to thickening 50 t of pulp per 1 m2 of thickener per day. The A44 flocculant is recommended for pilot testing. Thus, developing, testing and implementing fundamentally new reagents and improving existing technologies of processing gold-containing ores and concentrates are necessary to intensify the ore dewatering processes after ultra-fine grinding.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>металлургия благородных металлов</kwd><kwd>сульфидная золотосодержая руда</kwd><kwd>ультратонкое измельчение флотоконцентрата</kwd><kwd>сгущение</kwd><kwd>флокулянты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metallurgy of precious metals</kwd><kwd>sulphide gold ore</kwd><kwd>ultrafine grinding of flotation concentrate</kwd><kwd>thickening</kwd><kwd>flocculants</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">Баликов С.В., Дементьев В.Е., Минеев Г.Г. Плавка золотосодержащих концентратов. 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