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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">gscience</journal-id><journal-title-group><journal-title xml:lang="en">Mining Science and Technology (Russia)</journal-title><trans-title-group xml:lang="ru"><trans-title>Горные науки и технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2500-0632</issn><publisher><publisher-name>The National University of Science and Technology MISiIS (NUST MISIS)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/2500-0632-2020-4-297-306</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-249</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>BENEFICIATION AND PROCESSING OF NATURAL AND TECHNOGENIC RAW MATERIALS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОБОГАЩЕНИЕ, ПЕРЕРАБОТКА МИНЕРАЛЬНОГО И ТЕХНОГЕННОГО СЫРЬЯ</subject></subj-group></article-categories><title-group><article-title>Collector for Copper-Arsenic Ore Flotation</article-title><trans-title-group xml:lang="ru"><trans-title>Собиратель для медно-мышьяковистых руд</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>Рябой</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryaboy</surname><given-names>V. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Санкт-Петербург</p></bio><bio xml:lang="en"><p>St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шепета</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Shepeta</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Хабаровск</p></bio><bio xml:lang="en"><p>Khabarovsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">ООО «Механобр-ОР»<country>Россия</country></aff><aff xml:lang="en">LLC "Mechanobr-OR"<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Хабаровский Федеральный исследовательский центр Дальневосточного отделения Российской&#13;
академии наук (ХФИЦ ДВО РАН)<country>Россия</country></aff><aff xml:lang="en">Institution of Science of the Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences (KhFRTs FEB RAS),<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>06</day><month>01</month><year>2021</year></pub-date><volume>5</volume><issue>4</issue><fpage>297</fpage><lpage>306</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ryaboy V.I., Shepeta E.D., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Рябой В.И., Шепета Е.Д.</copyright-holder><copyright-holder xml:lang="en">Ryaboy V.I., Shepeta E.D.</copyright-holder><license 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://mst.misis.ru/jour/article/view/249">https://mst.misis.ru/jour/article/view/249</self-uri><abstract><p>Copper and scheelite concentrates are produced from scheelite-sulfide ores of the Vostok-2 deposit at the Primorsky processing plant. Chalcopyrite, gold, silver, and harmful impurities (arsenopyrite, pyrrhotite) are extracted into the copper concentrate. As a collector, dialkyldithiophosphate-type IMA-I413p reagent is used. Bulk sulfide concentrate is produced using activated carbon and trisodium phosphate; copper cleaner flotation is carried out in the medium of ferrous sulfate. The commercial copper concentrate contains 16 % copper, 33 g/t gold, and 280 g/t silver. The recovery of the metals is 67.6, 44.7, and 50.1 %, respectively. The weight fraction of arsenic in the ore fluctuates in the range of 0.04–0.25%, and that in the concentrate, 0.7–2.3 %. The enterprise looks for ways to increase recovery of the valuable metals and decrease content of arsenic in the copper concentrate to below 1% at the expense of increasing contrast in the separation of chalcopyrite from iron sulfides/arsenopyrite/pyrrhotite. For solving this problem, we performed a study of flotation properties of sulfide collectors based on dialkyldithiophosphates: BTF-15221, BTF -271, non-ionic collector Reaflot-277, and combinations of Reaflot-277 and IMA-I413p. Applying BTF-15221 collector allowed, as compared to the standard IMA-I413p reagent, to increase recovery of copper, gold, and silver and reduce arsenic content in the copper concentrate. The higher selectivity of BTF-15221 as compared to IMA-I413p was confirmed by the fact that the bulk of the increase in copper recovery and decrease in the weight fraction of arsenic in the copper concentrate was achieved in the selective cycle. Besides, during the study, surface activity and hydrophobizing ability of the water-soluble collectors were assessed. Using the example of BTF-15221, it was shown that improvement of the reagent collecting properties can be achieved not only due to increasing the surface activity of the reagent, but also at its decrease – in case of sufficient hydrophobizing ability of the reagent, close to that of the standard reagent. By adjusting these parameters through the use of low-molecular weight homologues of the main components, it is feasible to increase or decrease the selectivity and collecting ability of the reagent. Collector BTF-15221 is of practical interest for further testing in flotation of copper-arsenic and other ore types.</p></abstract><trans-abstract xml:lang="ru"><p>Из скарновой шеелит-сульфидной руды месторождения Восток-2 на Приморской обогатительной фабрике выделяют медный и шеелитовый концентраты. В медный концентрат извлекаются халькопирит, золото, серебро и вредные примеси арсенопирит, пирротин. В качестве собирателя используют реагент диалкилдитиофосфатного типа ИМА-И413п. Селекцию коллективного сульфидного концентрата осуществляют с применением активированного угля и тринатрийфосфата, медные перечистки проводят в среде железного купороса. Товарный медный концентрат содержит 16 % меди, 33 г/т золота и 280 г/т серебра. Извлечение металлов составляет соответственно 67,6, 44,7 и 50,1 %. Массовая доля мышьяка в руде колеблется в интервале 0,04–0,25 %, в концентрате 0,7–2,3 %. Для предприятия является актуальным повышение извлечения ценных металлов и снижение содержания мышьяка в медном концентрате менее 1 % за счет усиления контрастности разделения халькопирита и сульфидов железа арсенопирита, пирротина. В целях решения указанных задач были изучены флотационные свойства сульфидных собирателей на основе диалкилдитиофосфатов БТФ-15221, БТФ-271, неионогенного собирателя Реафлот-277 и комбинации Реафлот-277 и ИМА-И413п. Применение собирателя БТФ-15221 по сравнению со стандартным реагентом ИМА-И413п позволяет повысить извлечение меди, золота и серебра и снизить содержание мышьяка в медном концентрате. Более высокую селективность действия БТФ-15221 по сравнению с ИМА-И413п подтверждает факт, что основной прирост извлечения меди и снижение массовой доли мышьяка в медном концентрате получен в селективном цикле. В работе выполнена оценка поверхностной активности и гидрофобизирующей способности водорастворимых собирателей. На примере БТФ-15221 показано, что улучшение собирательных свойств реагентов может быть достигнуто не только при повышении поверхностной активности реагента, но и ее снижении при достаточно заметной гидрофобизирующей способности реагента, близкой к стандартному реагенту. Регулированием этих параметров за счет использования низко- и более высокомолекулярных гомологов основных компонентов можно повысить или понизить селективность и собирательную способность реагента. Собиратель БТФ-15221 представляет практический интерес для дальнейших испытаний на медно-мышьяковистых и других типах руд</p></trans-abstract><kwd-group xml:lang="ru"><kwd>медно-мышьяковистые руды</kwd><kwd>гидрофобизирующая способность водо-растворимых собирателей</kwd><kwd>поверхностная активность</kwd><kwd>флотация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>copper-arsenic ores</kwd><kwd>dialkyldithiophosphate collector</kwd><kwd>hydrophobizing ability of water-soluble collectors</kwd><kwd>surface activity</kwd><kwd>flotation</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">Хан Г. А., Габриелова Л. И., Власова Н. С. Флотационные реагенты и их применение. 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