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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">cvmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия вузов. Цветная металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Non-Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3438</issn><issn pub-type="epub">2412-8783</issn><publisher><publisher-name>НИТУ "МИСИС"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0021-3438-2024-3-57-72</article-id><article-id custom-type="elpub" pub-id-type="custom">cvmet-1633</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 редких и благородных металлов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Metallurgy of Rare and Precious Metals</subject></subj-group></article-categories><title-group><article-title>Извлечение редкоземельных металлов из фосфогипса и растворов подземного выщелачивания урана</article-title><trans-title-group xml:lang="en"><trans-title>Extraction of rare earth elements from phosphogypsum and uranium in situ leaching solutions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-4776-5506</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рычков</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Rychkov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Николаевич Рычков – д.х.н., профессор кафедры редких металлов и наноматериалов (РМиН)</p><p>620002, Свердловская обл., г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Vladimir N. Rychkov – Dr. Sci. (Chem.), Professor of the Department of Rare Metals and Nanomaterials (RM&amp;N)</p><p>19 Mira Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">v.n.rychkov@urfu.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/0000-0002-0024-3120</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кириллов</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirillov</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгений Владимирович Кириллов – к.т.н., доцент кафедры РМиН</p><p>620002, Свердловская обл., г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Evgenii V. Kirillov – Cand. Sci. (Eng.), Docent of the Department of RM&amp;N</p><p>19 Mira Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">e.kirillov.umn@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9949-9881</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кириллов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kirillov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Владимирович Кириллов – к.т.н., доцент кафедры РМиН</p><p>620002, Свердловская обл., г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Sergei V. Kirillov – Cand. Sci. (Eng.), Docent of the Department of RM&amp;N</p><p>19 Mira Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">S.V.Kirillov@urfu.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/0000-0002-8063-4390</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Буньков</surname><given-names>Г. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bunkov</surname><given-names>G. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Григорий Михайлович Буньков – к.т.н., доцент кафедры РМиН</p><p>620002, Свердловская обл., г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Grigorii M. Bunkov – Cand. Sci. (Eng.), Docent of the Department of RM&amp;N</p><p>19 Mira Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">g.m.bunkov@urfu.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/0000-0001-5870-472X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боталов</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Botalov</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Максим Сергеевич Боталов – ассистент, вед. инженер кафедры РМиН</p><p>620002, Свердловская обл., г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Maxim S. Botalov – Assistant, Leading Engineer of the Department of RM&amp;N</p><p>19 Mira Str., Yekaterinburg 620002</p><p> </p></bio><email xlink:type="simple">ms.botalov@urfu.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/0009-0007-4580-6090</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смышляев</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smyshlyaev</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Денис Валерьевич Смышляев – ассистент, вед. инженер кафедры РМиН</p><p>620002, Свердловская обл., г. Екатеринбург, ул. Мира, 19</p></bio><bio xml:lang="en"><p>Denis V. Smyshlyaev – Assistant, Leading Engineer of the Department of RM&amp;N</p><p>19 Mira Str., Yekaterinburg 620002</p></bio><email xlink:type="simple">Denis.smyshliaev@urfu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский федеральный университет имени первого Президента России Б.Н. Ельцина</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural Federal University named after the first President of Russia B.N.Yeltsin»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>03</day><month>10</month><year>2024</year></pub-date><volume>0</volume><issue>3</issue><fpage>57</fpage><lpage>72</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рычков В.Н., Кириллов Е.В., Кириллов С.В., Буньков Г.М., Боталов М.С., Смышляев Д.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Рычков В.Н., Кириллов Е.В., Кириллов С.В., Буньков Г.М., Боталов М.С., Смышляев Д.В.</copyright-holder><copyright-holder xml:lang="en">Rychkov V.N., Kirillov E.V., Kirillov S.V., Bunkov G.M., Botalov M.S., Smyshlyaev D.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://cvmet.misis.ru/jour/article/view/1633">https://cvmet.misis.ru/jour/article/view/1633</self-uri><abstract><p>Проведены исследования по извлечению редкоземельных элементов (РЗЭ) из техногенных источников – фосфогипса и растворов подземного выщелачивания урана (ПВУ). Установлено, что механоактивация в значительной мере увеличивает степень выщелачивания РЗЭ из фосфогипса. Также получены данные по сорбционному выщелачиванию РЗЭ из фосфогипса. Показано, что химическая активация в зависимости от используемого ионита и его формы может в 2 раза увеличить степень выщелачивания по целевым компонентам. Представлены результаты исследования по сорбционному извлечению скандия из растворов подземного выщелачивания урана. Установлено, что сорбция Sc из растворов ПВУ на катионите Purolite S-957 происходит значительно лучше, чем на амфолитах Lewatit TP-260, Purolite S-950, Tulsion CH-93 и ЭКО-10. Однако необходимо отметить и тот факт, что все рассмотренные сорбенты не отличаются высокой селективностью по отношению к ионам Sc. Приведены сравнительные данные по извлечению Sc из растворов ПВУ коммерческим сорбентом ТВЭКС Lewatit VP OC-1026 и ТВЭКС Axion-22, синтезированными по приведенной в работе методике. Определен механизм экстракции скандия из растворов ПВУ с использованием Axion-22 и установлено, что он имеет довольно высокую селективность по отношению к ионам Sc. Представлены результаты исследования по десорбции скандия из насыщенного ТВЭКС. Показано, что наиболее эффективным десорбирующим агентом является водный раствор фтористо-водородной кислоты. Также в работе рассмотрено сорбционное извлечение РЗЭ из растворов ПВУ на катионитах КУ-2, КМ-2П, КФ-11. Выявлено, что что лучшими элюентами для десорбции РЗЭ из насыщенного катионита являются растворы хлорида кальция и нитрата аммония. Показано, что значительное концентрирование суммы РЗЭ и очистку от основных примесей (Fe и Al) достаточно эффективно можно осуществить на стадии осаждения РЗЭ из раствора десорбции посредством дробного гидролиза. Представлены данные по разделению La, Nd и Sm путем элюирования из насыщенного импрегната, содержащего в своей структуре фосфорилподанд и Д2ЭГФК. Также отмечено, что для экстракции РЗЭ из растворов различных электролитов значительный интерес представляют ионные жидкости. В качестве примера извлечения РЗЭ из фосфогипса представлена одна из разработанных технологических схем.</p></abstract><trans-abstract xml:lang="en"><p>The paper investigates the extraction of rare earth elements (REE) from technogenic sources – phosphogypsum and uranium in situ leaching (ISL) solutions. We found that mechanical activation significantly increases the degree of REE leaching from phosphogypsum. We also obtained data on sorption leaching of REEs from phosphogypsum. It has been shown that, depending on the ion exchanger used and its form, chemical activation can double the leaching degree of the target components. The paper presents the findings of the study on the sorption recovery of scandium from uranium in situ leaching solutions. We determined that Sc sorption from uranium ISL solutions on the Purolite S-957 cation exchanger is much more effective than on Lewatit TP-260, Purolite S-950, Tulsion CH-93 CH-93, and ECO-10 ampholites. However, it should be pointed out that none of the listed sorbents is highly selective towards scandium ions. The paper presents comparative data on Sc extraction from uranium ISL solutions using Lewatit VP OC-1026 and Axion 22 commercial solid extractants synthesized according to the method described in the paper. We determined the mechanism of scandium extraction from uranium ISL solutions using Axion-22 and proved that it shows high selectivity towards scandium ions. Studies on the desorption of scandium from the saturated solid extractant showed that the most effective desorption agent is an aqueous solution of hydrofluoric acid. Additionally, the paper investigates the sorption extraction of REEs from uranium ISL solutions on cation exchangers KU-2, KM-2P, and KF-11. We found that the best eluents for the desorption of REEs from the saturated cation exchanger are solutions of calcium chloride and ammonium nitrate. It has been shown that the concentration of REEs in the solution and the removal of major impurities (Fe and Al) are quite effective when REEs precipitate from the desorption solution by fractional hydrolysis. The paper describes the separation of La, Nd, and Sm by elution from the saturated impregnate containing phosphorylpodande and Di(2-ethylhexyl) phosphoric acid in its structure. It should also be noted that ionic liquids can be useful for the extraction of REEs from the solutions of various electrolytes. We presented one of the technological schemes illustrating REE extraction from phosphogypsum.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>техногенные месторождения</kwd><kwd>редкоземельные элементы (РЗЭ)</kwd><kwd>скандий</kwd><kwd>ионный обмен</kwd><kwd>твердый экстрагент</kwd><kwd>экстракция</kwd><kwd>растворы подземного выщелачивания урана (ПВУ)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>technogenic deposits</kwd><kwd>rare-earth elements (REE)</kwd><kwd>scandium</kwd><kwd>ion exchange</kwd><kwd>solid extractant</kwd><kwd>extraction</kwd><kwd>uranium in situ leaching (ISL) solutions</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">David S.A. The elements of power: Gadgets, guns, and the struggle for a sustainable future in the rare metal age. New Haven: Yale University Press., 2017. 336 р.</mixed-citation><mixed-citation xml:lang="en">David S.A. 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