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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8331-2019-55-3-277-287</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-405</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Флотационное обогащение калийных руд</article-title><trans-title-group xml:lang="en"><trans-title>Flotation enrichment of potash ores of different mineralogical composition</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>Дихтиевская</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dikhtievskaya</surname><given-names>L. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дихтиевская Людмила Валентиновна – канд. хим. наук, ст. науч. сотрудник</p></bio><bio xml:lang="en"><p>Liudmila V. Dikhtievskaya – Ph. D. (Chemistry), Senior Researcher</p></bio><email xlink:type="simple">dixti@yandex.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>Шломина</surname><given-names>Л. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Shlomina</surname><given-names>L. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шломина Людмила Федоровна – науч. сотрудник</p></bio><bio xml:lang="en"><p>Liudmila F. Shlomina – Researcher</p></bio><email xlink:type="simple">liudmila.shlomina@rambler.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>Осипова</surname><given-names>Е. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Osipova</surname><given-names>E. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Осипова Елена Олеговна – науч. сотрудник</p></bio><bio xml:lang="en"><p>Elena O. Osipova – Researcher</p></bio><email xlink:type="simple">osipovaelena81@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>Шевчук</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shevchuk</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шевчук Вячеслав Владимирович – член-корреспондент, д-р хим. наук, зав. отделом минеральных удобрений</p></bio><bio xml:lang="en"><p>Viacheslau V. Shevchuk – Corresponding member of the National Academy of Sciences of Belarus, D. Sc. (Chemistry), Head of the Department of Mineral Fertilizers</p></bio><email xlink:type="simple">shevchukslava@rambler.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>Можейко</surname><given-names>Ф. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Mozheyko</surname><given-names>F. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Можейко Фома Фомич – член-корреспондент Национальной академии наук Беларуси, д-р хим. наук</p></bio><bio xml:lang="en"><p>Foma F. Mozheyko – Corresponding Member of the National Academy of Science of Belarus, D. Sc. (Chemistry)</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт общей и неорганической химии Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>12</day><month>09</month><year>2019</year></pub-date><volume>55</volume><issue>3</issue><fpage>277</fpage><lpage>287</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дихтиевская Л.В., Шломина Л.Ф., Осипова Е.О., Шевчук В.В., Можейко Ф.Ф., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Дихтиевская Л.В., Шломина Л.Ф., Осипова Е.О., Шевчук В.В., Можейко Ф.Ф.</copyright-holder><copyright-holder xml:lang="en">Dikhtievskaya L.V., Shlomina L.F., Osipova E.O., Shevchuk V.V., Mozheyko F.F.</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://vestichem.belnauka.by/jour/article/view/405">https://vestichem.belnauka.by/jour/article/view/405</self-uri><abstract><p>Проведены исследования по разработке технологий флотационного обогащения калийных руд: сильвинитовой, каинит-галитовой, карналлит-каинит-галитовой. Для каждой руды разработаны оптимальные условия флотации: солевой состав, плотность и рН дисперсионной среды, собиратель полезного компонента, вспомогательные реагенты – вспениватели, гидрофобизаторы, депрессоры, для получения высокообогащенного калийсодержащего концентрата. На сильвинитовой руде, обогащаемой методом прямой флотации в насыщенных по руде растворах с плотностью 1235 кг/м3, показано, что использование комбинации вспенивателей (сосновое масло, полиэтиленгликоль) и аполярных реагентов (жидкие парафины, индустриальное масло) в составе комплексного собирателя на основе высших алифатических аминов (С16 –С18) обеспечивает повышение извлечения хлорида калия в концентрат при высоком его качестве. Каинит-галитовая руда обогащается методом прямой флотации в водном насыщенном растворе хлорида магния с плотностью 1284 кг/м3 и рН 6–7 с использованием в качестве собирателя каинита алифатических аминов С10 –С12 в сочетании с амииловым спиртом или каприловой кислотой. При обогащении карналлит-каинит-галитовой руды обогащение проводится методом обратной флотации в водных растворах хлорида магния с плотностью 1285–1295 кг/м3 и рН 3–4 с использованием солянокислой соли алкилморфолина в качестве собирателя галита.</p></abstract><trans-abstract xml:lang="en"><p>The studies on the development of flotation enrichment technology for potash ores (sylvinite, kainit-halite, carnallite-kainit-halite) were conducted. Optimal flotation conditions: salt composition, density and pH of the dispersion medium, collector of the useful component, auxiliary reagents-frothers, hydrophobisators, depressors for obtaining highly enriched potassium-containing concentrate have been developed for each ore. On the example of sylvinite ore enriched by direct flotation in ore-saturated solutions with a density of 1235 kg/m3, it was shown that the use of a combination of frothers (pine oil, polyethylene glycol) and apolar reagents (liquid paraffins, industrial oil) as part of a complex collector based on higher aliphatic amines (C16 –C18) provides an increase in the extraction of potassium chloride to the concentrate with high quality of the latter. For kainite-halite ore enriched by direct flotation in the saturated aqueous solution of magnesium chloride with a density of 1284 kg/m3 and pH 6–7, lower aliphatic amines (C10 –C12) in combination with amyl alcohol or caprylic acid are effective as a collector of kainite. Carnallite-kainite-halite ore is enriched by reverse flotation in aqueous solutions of magnesium chloride with a density of 1285–1295 kg/m 3 and pH 3–4 using the halite collector of the hydrochloric acid salt of alkylmorpholine.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>флотационное обогащение</kwd><kwd>калийная руда</kwd><kwd>сильвинитовая</kwd><kwd>каинит-галитовая</kwd><kwd>карналлит-каинит-галитовая</kwd><kwd>катионные поверхностно-активные вещества</kwd><kwd>собиратель</kwd><kwd>вспениватель</kwd><kwd>аполярный реагент</kwd><kwd>извлечение</kwd><kwd>селективность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>flotation enrichment</kwd><kwd>potash ore</kwd><kwd>sylvinite</kwd><kwd>kainite-halite</kwd><kwd>carnallite-kainite-halite</kwd><kwd>cationic surfactants</kwd><kwd>collector</kwd><kwd>frothers</kwd><kwd>apolar reagent</kwd><kwd>recovery</kwd><kwd>selectivity</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">Желнин, А. 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