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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">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2024-1-27-36</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-2674</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>МЕТАЛЛУРГИЧЕСКИЕ ТЕХНОЛОГИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>METALLURGICAL TECHNOLOGIES</subject></subj-group></article-categories><title-group><article-title>Совместная переработка перовскитового и ильменитовогоконцентратов. Сообщение 1. Химико-минералогическая (вещественная) характеристика перовскитового и ильменитого концентратов</article-title><trans-title-group xml:lang="en"><trans-title>Joint processing of perovskite and ilmenite concentrates. Part 1. Chemical-mineralogical (material) characteristics of perovskite and ilmenite concentrates</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4201-5177</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федоров</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей Андреевич Федоров, к.т.н., старший научный сотрудник лаборатории пирометаллургии цветных металлов</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Sergei A. Fedorov, Cand. Sci. (Eng.), Senior Researcher of the Laboratory of Pyrometallurgy of Nonferrous Metals</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">saf13d@mail.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>Удоева</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Udoeva</surname><given-names>L. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Людмила Юрьевна Удоева, к.т.н., ведущий научный сотрудник лаборатории редких тугоплавких металлов</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Lyudmila Yu. Udoeva, Cand. Sci. (Eng.), Leading Researcher of the Labo­ratory of Rare Refractory Metals</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">lyuud@yandex.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/0000-0002-6395-0834</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вусихис</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vusikhis</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Семенович Вусихис, к.т.н., старший научный сотрудник лаборатории пирометаллургии цветных металлов</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Aleksandr S. Vusikhis, Cand. Sci. (Eng.), Senior Researcher of the Laboratory of Pyrometallurgy of Non-Ferrous Metals</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">vas58@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/0000-0002-5843-0041</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пикулин</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pikulin</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кирилл Владимирович Пикулин, к.т.н., старший научный сотрудник лаборатории редких тугоплавких металлов</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Kirill V. Pikulin, Cand. Sci. (Eng.), Senior Researcher of the Laboratory of Rare Refractory Metals</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">pikulin.imet@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/0000-0002-3983-8922</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черепанова</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherepanova</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Любовь Александровна Черепанова, к.х.н., научный сотрудник лаборатории статики и кинетики процессов</p><p>Россия, 620016, Екатеринбург, ул. Амундсена, 101</p></bio><bio xml:lang="en"><p>Lyubov’ A. Cherepanova, Cand. Sci. (Chem.), Research Associate of the Laboratory of Statics and Kinetics of Processes</p><p>101 Amundsena Str., Yekaterinburg 620016, Russian Federation</p></bio><email xlink:type="simple">freefly88@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт металлургии Уральского отделения РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>24</day><month>02</month><year>2024</year></pub-date><volume>67</volume><issue>1</issue><fpage>27</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Федоров С.А., Удоева Л.Ю., Вусихис А.С., Пикулин К.В., Черепанова Л.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Федоров С.А., Удоева Л.Ю., Вусихис А.С., Пикулин К.В., Черепанова Л.А.</copyright-holder><copyright-holder xml:lang="en">Fedorov S.A., Udoeva L.Y., Vusikhis A.S., Pikulin K.V., Cherepanova L.A.</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://fermet.misis.ru/jour/article/view/2674">https://fermet.misis.ru/jour/article/view/2674</self-uri><abstract><p>Россия обладает внушительной минерально-сырьевой базой титана, при этом ее вклад в мировое производство титановых концентратов ничтожно мал. Текущая годовая потребность российских предприятий в титановом сырье в 40 раз выше его производства. Для вовлечения в переработку отечественного титанового сырья, для которого характерно низкое качество и сложный полиминеральный состав, необходимы новые технологические решения, позволяющие полноценно извлекать TiO2 и сопутствующие ценные компоненты из руд месторождений, освоение которых планируется или уже началось (например, перовскит-титаномагнетитовое месторождение Африканда на Кольском полуострове). В настоящем сообщении представлены результаты изучения химического и минерального составов перовскитового и ильменитового концентратов для оценки возможности их совместной переработки путем карботермической восстановительной плавки. В исследованиях использованы методы эмиссионной спектрометрии, рентгеновской дифракции, электронной микроскопии и рентгеноспектрального микроанализа. Установлено, что в пробе ильменитового гравитационного концентрата основу составляет измененный ильменит, представленный продуктами лейкоксенизации – псевдорутилом и рутилом, суммарная доля которых в концентрате около 80 мас. %. В незначительных количествах титан встречается в составе других минералов (алюмохромит, хромит, магнетит) в качестве примесей (2 – 3 мас. %). В пробе перовскитового флотоконцентрата титан содержится в перовските и титаните, составляющих основную часть рудных минералов концентрата. Из минералов редких и редкоземельных элементов (РЗЭ) в ильменитовой пробе обнаружены монацит, содержащий до 33 мас. % Ce, и циркон. В перовскитовой пробе РЗЭ находятся (концентрация РЗЭ в мас. %) в лопарите-(Ce) (22,8), алюминоцерите-(Ce) (46,2), анкилите-(Ce) (51,3), торите (22,3), а также в основном минерале – перовските (2,8). За исключением перовскита и лопарита-(Ce), другие РЗЭ-содержащие минералы встречаются редко, и их доля в сумме не превышает 1 мас. %.</p></abstract><trans-abstract xml:lang="en"><p>Russia has an impressive titanium mineral resource while the contribution into the global production of titanium concentrates is quite insignificant. The current annual demand of Russian enterprises for titanium raw materials is 40 times higher than its production. To improve and launch the processing of domestic titanium raw materials characterized by low quality and complex polymineral composition, new process solutions are required. These solutions should aim at the full extraction of TiO2 and related valuable components from the ore deposits whose development is planned or already started (for example, Afrikanda – perovskite-titanomagnetite deposit located on the Kola Peninsula). This report presents the results of studying the chemical and mineral compositions of perovskite and ilmenite concentrates with the purpose to assess the possibility of their joint processing using carbothermic reduction melting. Emission spectrometry, X-ray diffraction, electron microscopy, and X-ray spectral microanalysis were applied in these studies. It was found that the basis of the ilmenite gravity concentrate sample is modified ilmenite represented by leucoxenization products – pseudorutile and rutile, with their total content in the concentrate to be about 80 wt. %. Composition of other minerals (alumochromite, chromite, magnetite) includes titanium in the form of impurities – 2 – 3 wt. %. In the perovskite flotation concentrate sample titanium is contained in perovskite and titanite making up the bulk of the ore minerals of the concentrate. As for rare and rare-earth elements contained in the ilmenite sample – monazite having up to 33 wt. % Ce, and zircon were found. Perovskite sample contains rare-earth elements (REE concentration in wt. %) in loparite-(Ce) (22.8), aluminocerite-(Ce) (46.2), anсylite-(Ce) (51.3), torite (22.3), as well as in the main mineral – perovskite (2.8). With the exception of perovskite and loparite-(Ce), other REE-containing minerals are rare, and their share in total does not exceed 1 wt. %</p></trans-abstract><kwd-group xml:lang="ru"><kwd>титановое сырье</kwd><kwd>ильменит</kwd><kwd>псевдорутил</kwd><kwd>перовскит</kwd><kwd>концентрат</kwd><kwd>химический состав</kwd><kwd>минеральный состав</kwd><kwd>микроструктура</kwd></kwd-group><kwd-group xml:lang="en"><kwd>titanium raw materials</kwd><kwd>ilmenite</kwd><kwd>pseudorutile</kwd><kwd>perovskite</kwd><kwd>concentrate</kwd><kwd>chemical composition</kwd><kwd>mineral composition</kwd><kwd>microstructure</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по Государственному заданию ИМЕТ УрО РАН (№ гос. регистрации темы: 122020100404-2) с использованием оборудования ЦКП «Урал-М».</funding-statement><funding-statement xml:lang="en">The work was performed according to the State task of the Institute of Metallurgy of Ural Branch of the Russian Academy of Sciences (no. of the state registration: 122020100404-2) using the equipment of the Center for Collective Use “Ural-M”.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Николаев А.И., Ларичкин Ф.Д., Герасимова Л.Г. и др. Титан и его соединения: ресурсы, производство, рынки, перспективы. Апатиты: КНЦ РАН; 2011:152.</mixed-citation><mixed-citation xml:lang="en">Nikolaev A.I., Larichkin F.D., Gerasimova L.G., etc. Titanium and Its Compounds: Resources, Production, Markets, Prospects. Apatity: Kola Science Centre, RAS; 2011:152. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Быховский Л.З., Тигунов Л.П. Титановое сырье России. Российский химический журнал. 2010;(2(54)):73–86.</mixed-citation><mixed-citation xml:lang="en">Bykhovskii L.Z., Tigunov L.P. Titanium raw materials of Russia. Rossiiskii Khimicheskii Zhurnal. 2010;(2(54)): 73–86. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Государственный доклад о состоянии и использовании минерально-сырьевых ресурсов Российской Федерации в 2019 году. Москва: Министерство природных ресурсов и экологии Российской Федерации; 2020:493.</mixed-citation><mixed-citation xml:lang="en">State report on the state and use of mineral resources of the Russian Federation in 2019. Moscow: Ministry of Natural Resources and Ecology of the Russian Federation. 2020:493. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Точило М.В., Федосеев С.В., Ларичкин Ф.Д., Новосельцева В.Д., Горбовских А.В. Перспективы и подходы к формированию стратегии развития титановой промышленности в северо-западном регионе России. Север и рынок: формирование экономического порядка. 2019;(3(65)):99–108.</mixed-citation><mixed-citation xml:lang="en">Tochilo M.V., Fedoseev S.V., Larichkin F.D., Novosel’­tseva V.D., Gorbovskikh A.V. Prospects and approaches to forming the strategy for the development of the titanium industry in the north-west region of Russia. Sever i Rynok: Formirovanie ekonomicheskogo poryadka. 2019;(3(65)): 99–108. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Андронов Г.П., Филимонова Н.М., Хохуля М.С. Разделение титансодержащих минералов магнитной сепарацией. Вестник МГТУ. 2019;(1(22)):109–119. https://doi.org/10.21443/1560-9278-2019-22-1-109-119</mixed-citation><mixed-citation xml:lang="en">Andronov G.P., Filimonova N.M., Khokhulya M.S. Separation of titanium-containing minerals by magnetic separation. Vestnik MGTU. 2019;(1(22)):109–119. (In Russ.). https://doi.org/10.21443/1560-9278-2019-22-1-109-119</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Хохуля М.С., Герасимова Л.Г., Николаев А.И. Новые технологические решения подготовки и переработки перовс­кита. Труды Кольского научного центра РАН. 2018:196–200.</mixed-citation><mixed-citation xml:lang="en">Khokhulya M.S., Gerasimova L.G., Nikolaev A.I. New technological solutions for the preparation and processing of perovskite. In: Trudy Kol’skogo Nauchnogo Tsentra RAN. 2018:196–200. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Леонтьев Л.И., Ватолин Н.А., Шаврин С.Л., Шумаков Н.С. Пирометаллургическая переработка комплексных руд. Москва: Металлургия; 1997:432.</mixed-citation><mixed-citation xml:lang="en">Leont’ev L.I., Vatolin N.A., Shavrin S.L., Shumakov N.S. Pyrometallurgical Processing of Complex Ores. Moskow: Metallurgiya; 1997:432. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Гришин Н.Н., Ракитина Е.Ю. Новые элементы технологии переработки титаномагнетитов Кольского полу­острова. Труды Ферсмановской научной сессии ГИ КНЦ РАН. 2017;(14):228–231.</mixed-citation><mixed-citation xml:lang="en">Grishin N.N., Rakitina E.Yu. New elements of techno­logy for processing titanomagnetites of the Kola Peninsula. Trudy Fersmanovskoi Nauchnoi Sessii GI KNTS RAN. 2017;(14):228–231. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Wang S., Chen M., Guo Y., Jiang T., Zhao B. Reduction and smelting of vanadium titanomagnetite metallized pellets. JOM. 2019;71:1144–1149. https://doi.org/10.1007/s11837-018-2863-7</mixed-citation><mixed-citation xml:lang="en">Wang S., Chen M., Guo Y., Jiang T., Zhao B. Reduction and smelting of vanadium titanomagnetite metallized pellets. JOM. 2019;71:1144–1149. https://doi.org/10.1007/s11837-018-2863-7</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Wang S., Guo Y., Chen F., Zheng F., Yang L., Tang M. Behavior of tantalum during the smelting of vanadium titano­magnetite metallized pellets in an electric furnace. JOM. 2019;71:323–328. https://doi.org/10.1007/s11837-018-2932-y</mixed-citation><mixed-citation xml:lang="en">Wang S., Guo Y., Chen F., Zheng F., Yang L., Tang M. Behavior of tantalum during the smelting of vanadium titanomagnetite metallized pellets in an electric furnace. JOM. 2019;71:323–328. https://doi.org/10.1007/s11837-018-2932-y</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Киселев Ю.Г., Щукина Е.С. Растворимость гидратного продукта, полученного при азотнокислотной обработке перовскита, в серной кислоте. Вестник Кольского научного центра РАН. 2017;(2):81–86.</mixed-citation><mixed-citation xml:lang="en">Kiselev Yu.G., Shchukina E.S. Solubility of the hydrated product obtained by nitric acid treatment of perovskite in sulfuric acid. Vestnik Kol’skogo Nauchnogo Tsentra RAN. 2017;(2):81–86. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Николаев А.И., Герасимова Л.Г., Петров В.Б., Майоров В.Г. Перовскитовый концентрат — перспективное нетрадиционное сырье для производства титановой и редкометалльной продукции. Комплексное использование минерального сырья. 2015;(2):26–34.</mixed-citation><mixed-citation xml:lang="en">Nikolaev A.I., Gerasimova L.G., Petrov V.B., Maiorov V.G. Perovskite concentrate as a promising non-traditional raw material for production of titanium and rare metal pro­ducts. Kompleksnoe ispol’zovanie mineral’nogo syr’ya. 2015;(2):26–34. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Будин О.Н., Кропачев А.Н., Черепов В.В. Исследование технологии получения карбида титана и металлического кальция из перовскитового концентрата карботермичес­ким способом. Металлург. 2020;(4):56–64.</mixed-citation><mixed-citation xml:lang="en">Budin O.N., Kropachev A.N., Cherepov V.V. Study of technology for producing titanium carbide and calcium metal from perovskite concentrate by carbothermic method. Metallurg. 2020;(4):56–64. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang W., Zhu Z., Chen C.Y. Literature review of titanium metallurgical processes. Hydrometallurgy. 2011;108: 177–188. https://doi.org/10.1016/j.hydromet.2011.04.005</mixed-citation><mixed-citation xml:lang="en">Zhang W., Zhu Z., Chen C.Y. Literature review of titanium metallurgical processes. Hydrometallurgy. 2011;108: 177–188. https://doi.org/10.1016/j.hydromet.2011.04.005</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Ogasawara T., Veloso de Araujo R.V. Hydrochloric acid leaching of a pre-reduced Brazilian ilmenite concentrate in an autoclave. Hydrometallurgy. 2000;56(2):203–216. https://doi.org/10.1016/S0304-386X(00)00074-8</mixed-citation><mixed-citation xml:lang="en">Ogasawara T., Veloso de Araujo R.V. Hydrochloric acid leaching of a pre-reduced Brazilian ilmenite concentrate in an autoclave. Hydrometallurgy. 2000;56(2):203–216. https://doi.org/10.1016/S0304-386X(00)00074-8</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Amer A.M. Alkaline pressure leaching of mechanically activated Rosetta ilmenite concentrate. Hydrometallurgy. 2002;67(2): 125–133. https://doi.org/10.1016/S0304-386X(02)00164-0</mixed-citation><mixed-citation xml:lang="en">Amer A.M. Alkaline pressure leaching of mechanically activated Rosetta ilmenite concentrate. Hydrometallurgy. 2002;67(2):125–133. https://doi.org/10.1016/S0304-386X(02)00164-0</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Wang Y.-M., Yuan Z.-F., Guo Z.-C., Tan Q.-Q., Li Z.-Y., Jiang W.-Z. Reduction mechanism of natural ilmenite with graphite. Transactions of Nonferrous Metals Society of China. 2008;18(4):962–968. https://doi.org/10.1016/S1003-6326(08)60166-1</mixed-citation><mixed-citation xml:lang="en">Wang Y.-M., Yuan Z.-F., Guo Z.-C., Tan Q.-Q., Li Z.-Y., Jiang W.-Z. Reduction mechanism of natural ilmenite with graphite. Transactions of Nonferrous Metals Society of China. 2008;18(4):962–968. https://doi.org/10.1016/S1003-6326(08)60166-1</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Gou H.-P., Zhang G.-H., Hu X.-J., Chou K.-Ch. Kinetic study on carbothermic reduction of ilmenite with activated carbon. Transactions of Nonferrous Metals Society of China. 2017;27(8):1856–1861. https://doi.org/10.1016/S1003-6326(17)60209-7</mixed-citation><mixed-citation xml:lang="en">Gou H.-P., Zhang G.-H., Hu X.-J., Chou K.-Ch. Kinetic study on carbothermic reduction of ilmenite with activated carbon. Transactions of Nonferrous Metals Society of China. 2017;27(8):1856–1861. https://doi.org/10.1016/S1003-6326(17)60209-7</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Lv W., Bai C., Lv X., Hu K., Lv X., Xiang J., Song B. Carbothermic reduction of ilmenite concentrate in semi-molten state by adding sodium sulfate. Powder Technology. 2018;340:354–361. https://doi.org/10.1016/j.powtec.2018.09.043</mixed-citation><mixed-citation xml:lang="en">Lv W., Bai C., Lv X., Hu K., Lv X., Xiang J., Song B. Carbothermic reduction of ilmenite concentrate in semi-molten state by adding sodium sulfate. Powder Technology. 2018;340:354–361. https://doi.org/10.1016/j.powtec.2018.09.043</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Samal S.K., Mishra B., Mishra S.C. Carboaluminothermic production of ferrotitanium from ilmenite through thermal plasma. Journal of Sustainable Metallurgy. 2020;(6): 563–575. https://doi.org/10.1007/s40831-020-00292-5</mixed-citation><mixed-citation xml:lang="en">Samal S.K., Mishra B., Mishra S.C. Carboaluminothermic production of ferrotitanium from ilmenite through thermal plasma. Journal of Sustainable Metallurgy. 2020;(6): 563–575. https://doi.org/10.1007/s40831-020-00292-5</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang G., Ostrovski O. Effect of pre-oxidation and sintering on properties of ilmenite concentrates. International Journal of Mineral Processing. 2002;64(4):201–218. https://doi.org/10.1016/S0301-7516(01)00055-2</mixed-citation><mixed-citation xml:lang="en">Zhang G., Ostrovski O. Effect of pre-oxidation and sintering on properties of ilmenite concentrates. International Journal of Mineral Processing. 2002;64(4):201–218. https://doi.org/10.1016/S0301-7516(01)00055-2</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Gou H.P., Zhang G.H., Chou K.C. Influence of pre-oxidation on carbothermic reduction process of ilmenite concentrate. ISIJ International. 2015;55(5):928–933. https://doi.org/10.2355/isijinternational.55.928</mixed-citation><mixed-citation xml:lang="en">Gou H.P., Zhang G.H., Chou K.C. Influence of pre-oxidation on carbothermic reduction process of ilmenite concentrate. ISIJ International. 2015;55(5):928–933. https://doi.org/10.2355/isijinternational.55.928</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Резниченко В.А., Шабалин Л.И. Титаномагнетиты: месторождения, металлургия, химическая технология. Москва: Наука; 1986:297.</mixed-citation><mixed-citation xml:lang="en">Reznichenko V.A., Shabalin L.I. Titanomagnetites: Deposits, Metallurgy, Chemical Technology. Moscow: Nauka; 1986:297. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Slag Atlas, 2nd ed. Düsseldorf: Verlag Stahleisen GmbH; 1995:618.</mixed-citation><mixed-citation xml:lang="en">Slag Atlas, 2nd ed. Düsseldorf: Verlag Stahleisen GmbH; 1995:618.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Powder Diffraction File PDF4+ ICDD. Release 2016.</mixed-citation><mixed-citation xml:lang="en">Powder Diffraction File PDF4+ ICDD. Release 2016.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Rietveld H.M. Line profiles of neutron powder-diffraction peaks for structure refinement. Acta Crystallographica. 1967;22(1):151–152. https://doi.org/10.1107/S0365110X67000234</mixed-citation><mixed-citation xml:lang="en">Rietveld H.M. Line profiles of neutron powder-diffraction peaks for structure refinement. Acta Crystallographica. 1967;22(1):151–152. https://doi.org/10.1107/S0365110X67000234</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">DIFFRACPlus: TOPASBruker AXS GmbH. Karlsruhe, Germany; 2008.</mixed-citation><mixed-citation xml:lang="en">DIFFRACPlus: TOPASBruker AXS GmbH. Karlsruhe, Germany; 2008.</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Резниченко В.А., Аверин В.В., Олюнина Т.В. Титанаты: научные основы, технология, производство. Москва: Наука; 2010:267.</mixed-citation><mixed-citation xml:lang="en">Reznichenko V.A., Averin V.V., Olyunina T.V. Titanates: Scientific Foundations, Technology, Production. Moscow: Nauka; 2010:267. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Герасимова Л.Г., Мельник Н.А., Николаев А.И., Петров В.Б. и др. Солянокислотная технология перовскитового концентрата и ее радиационная оценка. Экология промышленного производства. 2015; (1(89)):54–58.</mixed-citation><mixed-citation xml:lang="en">Gerasimova L.G., Mel’nik N.A., Nikolaev A.I., Petrov V.B., etc. Hydrochloric acid technology of perovskite concentrate and its radiation assessment. Ekologiya promyshlennogo proizvodstva. 2015;(1(89)):54–58. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Levchenko E.N. Specific features of the mineral composition of titanium-zirconium placers in Russia. Lithology and Mine­ral Resources. 2006;41(2):117–136. https://doi.org/10.1134/S0024490206020039</mixed-citation><mixed-citation xml:lang="en">Levchenko E.N. Specific features of the mineral composition of titanium-zirconium placers in Russia. Lithology and Mine­ral Resources. 2006;41(2):117–136. https://doi.org/10.1134/S0024490206020039</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Кузнецов А.Г., Пашкова Н.Г. Морфология крупнообломочного материала пляжей берегов Тарханкутского полуострова (Крым). Ученые записки Крымского федерального университета имени В.И. Вернадского. Серия «География. Геология». 2015;(1(67)):81–90.</mixed-citation><mixed-citation xml:lang="en">Kuznetsov A.G., Pashkova N.G. Morphology of large-block material of beaches of the shores of the Tarkhankut peninsula (Crimea). Uchenye zapiski Krymskogo Federal’nogo Universiteta imeni V.I. Vernadskogo. Seriya “Geografiya. Geologiya”. 2015;(1(67)):81–90. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Котова О.Б., Ожогина Е.Г., Понарядов А.В. Технологи­ческая минералогия: развитие комплексной оценки титановых руд (на примере Пижемского месторождения). Записки Горного института. 2022;256:632–641. https://doi.org/10.31897/PMI.2022.78</mixed-citation><mixed-citation xml:lang="en">Kotova O.B., Ozhogina E.G., Ponaryadov A.V. Technological mineralogy: development of a comprehensive assessment of titanium ores (exemplified by the Pizhemskoye deposit). Journal of Mining Institute. 2022;256:632–641. (In Russ.). https://doi.org/10.31897/PMI.2022.78</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Соколов С.В. Перовскит и титанит–возможные нетрадиционные источники титана (на примере месторождения Африканда). В кн.: Технологическая минералогия в оценке качества минерального сырья природного и техногенного происхождения. Сборник докладов XIV Российского семинара по технологической минералогии, Москва, 5–6 апреля 2022 г. Петрозаводск: Издательство КНЦ РАН; 2022:78–81.</mixed-citation><mixed-citation xml:lang="en">Sokolov S.V. Perovskite and titanite – possible unconventional sources of titanium (on the example of the Afrikanda deposit). In: Technological Mineralogy in Assessing the Quality of Mineral Raw Materials of Natural and Man-Made Origin. Coll. of reports of the XIV Russ. Seminar on Technological Mineralogy, Moscow, April 5-6, 2022. Petrozavodsk: Kola Science Centre, RAS; 2022:78–81. (In Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Potter N.J., Ferguson M.R., Kamenetsky V.S., Chakhmouradian A.R., Sharygin V.V., Thompson J.M., Goemann K. Textural evolution of perovskite in the Afrikanda alkaline–ultramafic complex, Kola Peninsula, Russia. Contributions to Mineralogy and Petrology. 2018;173:100. https://doi.org/10.1007/s00410-018-1531-9</mixed-citation><mixed-citation xml:lang="en">Potter N.J., Ferguson M.R., Kamenetsky V.S., Chakhmouradian A.R., Sharygin V.V., Thompson J.M., Goemann K. Textural evolution of perovskite in the Afrikanda alkaline–ultramafic complex, Kola Peninsula, Russia. Contributions to Mineralogy and Petrology. 2018;173:100. https://doi.org/10.1007/s00410-018-1531-9</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
