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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">10.29235/1561-8331-2026-62-1-17-25</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-997</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>КОЛЛОИДНАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>COLLOIDAL CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Влияние солевой среды на коллоидно-химические свойства алкилморфолина при флотационном обогащении полиминеральных руд</article-title><trans-title-group xml:lang="en"><trans-title>Effect of salt environment on the colloid chemical properties of alkil-morfoline in flotation enrichment of polimineral 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>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 – научный сотрудник </p><p>ул. Сурганова, 9/1, 220072, Минск</p></bio><bio xml:lang="en"><p>Osipova Elena O. – Research </p><p>9/1,  Surganov  Str.,  220072,  Minsk</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 – доктор технических наук, доцент, заведующий лабораторией </p><p>ул. Сурганова, 9/1, 220072, Минск</p><p> </p></bio><bio xml:lang="en"><p>Shevchuk Vyacheslav V. – Dr. Sci. (Technical), Associate Professor, Head of the Laboratory </p><p>9/1,  Surganov  Str.,  220072,  Minsk</p></bio><email xlink:type="simple">shevchukslava@rambler.ru</email><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>2026</year></pub-date><pub-date pub-type="epub"><day>04</day><month>03</month><year>2026</year></pub-date><volume>62</volume><issue>1</issue><fpage>17</fpage><lpage>25</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Осипова Е.О., Шевчук В.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Осипова Е.О., Шевчук В.В.</copyright-holder><copyright-holder xml:lang="en">Osipova E.O., Shevchuk V.V.</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/997">https://vestichem.belnauka.by/jour/article/view/997</self-uri><abstract><p>Исследования поверхностного натяжения на границе раздела водный и солевой раствор солянокислого Armoflote 619–воздух показали, что соль алкилморфолина не склонна к высаливанию даже в насыщенных растворах. При изучении пенообразующей способности солянокислой соли Armoflote 619 как в водных, так и в солевых растворах, вплоть до насыщенных, показана высокая устойчивость соли Armoflote 619 к высаливающему действию неорганических электролитов. Для обогащения полиминеральной руды подобран оптимальный состав и плотность маточника, который представляет собой водный раствор хлорида магния с плотностью 1 295 кг/м3, дополнительно насыщенный рудой до плотности 1 305 кг/м3. Установлено, что использование подкисленных маточных растворов с pH 3–4 позволяет повысить извлечение галита в пенный продукт до 95–96 %. Кислая среда маточного раствора приводит к снижению потерь KCl в 1,3 раза и Mg2SO4 в 2,8 раза. Накопление алкилморфолина в маточных растворах способствует снижению расхода собирателя при флотации в оборотных рассолах: если в первичном рассоле из руды при расходе алкилморфолина 460 г/т можно извлечь в пенный продукт 89,55 % хлорида натрия, то при проведении флотации в маточнике 8-го оборотного цикла при расходе 160 г/т руды его извлекается 94,57 %.</p></abstract><trans-abstract xml:lang="en"><p>Studies of the surface tension at the interface between aqueous and saline solution of hydrochloric acid Armoflote 619–air have shown that the salt of alkylmorpholine is not prone to precipitation even in saturated solutions. The study of the foaming ability of the hydrochloric acid salt of Armoflote 619 in both aqueous and saline solutions, up to saturated ones, showed the high resistance of the salt of Armoflote 619 to the precipitating effect of inorganic electrolytes. For the enrichment of polymineral ore the optimal composition and density of the flotation solution were selected. It is a water magnesium chloride solution with a density of 1 295 kg/m3, presaturated with ore to a density of 1 305 kg/m3. It has been established that the use of acidified flotation solution with pH 3–4 leads to an increase in the extraction of halite into the foam product. The recovery of NaCl is 95–96 %. The acidic environment of the flotation solution leads to a decrease in KCl losses by 1.3 times and MgSO4 by 2.8 times. The accumulation of alkylmorpholine in flotation solution helps to reduce the collector consumption during flotation in circulating brines: if in the primary brine 89,55 % of sodium chloride can be extracted from the ore at the consumption of alkylmorpholine of 460 g/t, then during flotation in the brine of the 8th recirculating cycle at the consumption of 160 g/t of ore, 94,57 % of it is extracted.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>флотационное обогащение</kwd><kwd>полиминеральная руда</kwd><kwd>карналлит-каинит-галитовая руда</kwd><kwd>собиратель</kwd><kwd>катионные поверхностно-активные вещества</kwd><kwd>поверхностное натяжение</kwd><kwd>пенообразование</kwd><kwd>галит</kwd><kwd>извлечение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>flotation enrichment</kwd><kwd>polymineral ores</kwd><kwd>carnallite-kainite-halite ore</kwd><kwd>collector</kwd><kwd>cationic surfactants</kwd><kwd>surface tension</kwd><kwd>foaming</kwd><kwd>halite</kwd><kwd>recovery</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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