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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">10.17073/2500-0632-2022-08-09</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-386</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>Effect of sonochemical pretreatment of slurry depressors on sylvin flotation performance</article-title><trans-title-group xml:lang="ru"><trans-title>Влияние предварительной сонохимической обработки депрессоров шламов на эффективность сильвиновой флотации</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0369-0492</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буров</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Burov</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Евгеньевич Буров – аспирант кафедры «Химические технологии»</p><p>Scopus ID 57370843500</p><p>SPIN-код 6897-4317</p><p>г. Пермь</p></bio><bio xml:lang="en"><p>Vladimir E. Burov – PhD-Student, Department of Chemical Technology</p><p>Scopus ID 57370843500</p><p>SPIN-code 6897-4317</p><p>Perm </p></bio><email xlink:type="simple">vladimire.burov@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>Пойлов</surname><given-names>В. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Poilov</surname><given-names>V. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Зотович Пойлов – доктор технических наук, профессор кафедры «Химические технологии»</p><p>Scopus ID 10043355200</p><p>г. Пермь</p></bio><bio xml:lang="en"><p>Vladimir Z. Poilov – Dr. Sci. (Eng.), Professor, Department of Chemical Technology</p><p>Scopus ID 10043355200</p><p>Perm </p></bio><email xlink:type="simple">vladimirpoilov@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/0000-0002-5562-8407</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хуан</surname><given-names>Ч.</given-names></name><name name-style="western" xml:lang="en"><surname>Huang</surname><given-names>Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чжицян Хуан – PhD, профессор, Школа ресурсного и экологического инжиниринга</p><p>Scopus ID 35205081500</p><p>г.о. Ганьчжоу</p></bio><bio xml:lang="en"><p>Zhiqiang Huang – PhD, Professor, School of Resource and Environment Engineering</p><p>Scopus ID 35205081500</p><p>Ganzhou</p></bio><email xlink:type="simple">zhiqiang@jxust.edu.cn</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>Чернышев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernyshev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Владимирович Чернышев – аспирант кафедры «Химические технологии»</p><p>г. Пермь</p></bio><bio xml:lang="en"><p>Alexey V. Chernyshev – PhD-Student, Department of Chemical Technology</p><p>Perm</p></bio><email xlink:type="simple">AlexCher-1997@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>Кузьминых</surname><given-names>К. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzminykh</surname><given-names>K. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Геннадьевич Кузьминых – старший преподаватель кафедры «Химические технологии»</p><p>Scopus ID 57211144529</p><p>г. Пермь</p></bio><bio xml:lang="en"><p>Konstantin G. Kuzminykh – Senior Lecturer, Department of Chemical Technology</p><p>Scopus ID 57211144529</p><p>Perm</p></bio><email xlink:type="simple">kgkuz@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Пермский национальный исследовательский политехнический университет<country>Россия</country></aff><aff xml:lang="en">Perm National Research Polytechnic University<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Университет науки и технологии Цзянси<country>Китай</country></aff><aff xml:lang="en">Jiangxi University of Science and Technology<country>China</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>11</month><year>2022</year></pub-date><volume>7</volume><issue>4</issue><elocation-id>298–309</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Burov V.E., Poilov V.Z., Huang Z., Chernyshev A.V., Kuzminykh K.G., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Буров В.Е., Пойлов В.З., Хуан Ч., Чернышев А.В., Кузьминых К.Г.</copyright-holder><copyright-holder xml:lang="en">Burov V.E., Poilov V.Z., Huang Z., Chernyshev A.V., Kuzminykh K.G.</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/386">https://mst.misis.ru/jour/article/view/386</self-uri><abstract><p>The main source of potassium fertilizers is sylvinite ores consisting primarily of halite (NaCl), silicate and clay-carbonate slurries (clay-salt slurries). Processing of natural potash ores is mainly carried out by the flotation method, which separates KCl, NaCl, and clay-salt slurry. The research is aimed at revealing the effect of sonochemical pretreatment of the depressor reagents, CMC and starch, on dynamic viscosity, aggregate size, electrokinetic potential of these reagent solutions and sylvin flotation performance. It has been established that sonochemical treatment of depressor solutions decreases the size of aggregates of starch molecules by more than 133 times and that of aggregates of CMC molecules from 6 to 4 nm. It has been revealed that sonochemical treatment of anionic CMC solution shifts the electrokinetic potential towards the area of negative values with an increase in acoustic power, while sonochemical treatment of any acoustic power has no effect on the zeta potential of nonionic starch. It has been found that the sonochemical treatment lowers the dynamic viscosity of CMC and starch solutions: the viscosity of CMC solution at a maximum acoustic power of 420 W decreases by 44 % and the viscosity of starch solution at the same acoustic (ultrasonic) power decreases by 70 %. Furthermore, sonochemical pretreatment of sylvin flotation depressors contributes to an increase in KCl recovery and a decrease in the slurry content in the flotation concentrate. The possibility of reducing the consumption of ultrasonic treated depressor is also demonstrated. It is expedient to test the obtained findings in pilot-plant conditions.</p></abstract><trans-abstract xml:lang="ru"><p>Основной источник калийных удобрений – сильвинитовые руды, состоящие в том числе из галита (NaCl), силикатных и глинисто-карбонатных шламов (глинисто-солевых шламов). Обогащение природных калийных руд главным образом осуществляется флотационным методом, при котором происходит разделение KCl, NaCl и глинисто-солевых шламов.Исследование направлено на выявление влияния предварительной сонохимической обработки реагентов-депрессоров – КМЦ и крахмала – на динамическую вязкость, размер агрегатов, электрокинетический потенциал растворов этих реагентов и на эффективность сильвиновой флотации. Установлено, что сонохимическая обработка растворов депрессоров уменьшает размер агрегатов молекул крахмала более чем в 133 раза, агрегатов молекул КМЦ – с 6 до 4 нм. Выявлено, что сонохимическое воздействие на раствор анионного КМЦ с увеличением акустической мощности смещает электрокинетический потенциал в область отрицательных значений, при этом сонохимическая обработка любой акустической мощности не влияет на дзета-потенциал неионогенного крахмала. Установлено, что сонохимическая обработка понижает динамическую вязкость растворов КМЦ и крахмала: вязкость раствора КМЦ при максимальной акустической мощности 420 Вт снижается на 44 %, вязкость раствора крахмала при той же акустической мощности ультразвука – на 70 %. Кроме того, предварительная сонохимическая обработка депрессоров сильвиновой флотации способствует увеличению извлечения KCl и снижению содержания шламов во флотационном концентрате. Также показана возможность снижения расхода обработанного ультразвуком депрессора. Полученные результаты целесообразно апробировать в опытно-промышленных условиях.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>обогащение</kwd><kwd>сильвиновая флотация</kwd><kwd>ультразвук</kwd><kwd>депрессор</kwd><kwd>глинисто-солевой шлам</kwd><kwd>карбоксиметилцеллюлоза</kwd><kwd>крахмал</kwd><kwd>дзета-потенциал</kwd><kwd>динамическая вязкость</kwd><kwd>извлечение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>processing</kwd><kwd>sylvin flotation</kwd><kwd>ultrasound</kwd><kwd>depressor</kwd><kwd>clay-salt slurry</kwd><kwd>carboxymethylcellulose</kwd><kwd>starch</kwd><kwd>zeta potential</kwd><kwd>dynamic viscosity</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">Huang Z., Cheng C., Zhong H. et al. Flotation of sylvite from potash ore by using the Gemini surfactant as a novel flotation collector. 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