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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">10.17073/2500-0632-2023-04-112</article-id><article-id custom-type="elpub" pub-id-type="custom">gscience-555</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>Enrichment of Algerian kaolin using froth flotation method</article-title><trans-title-group xml:lang="ru"><trans-title>Обогащение каолиновой руды месторождения Тамазерт (Алжир) методом пенной 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/0000-0003-1479-7092</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лараба</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Laraba</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мохаммед Лараба – доктор наук, преподаватель, кафедра горного дела и геотехнологии</p><p>г. Тебесса</p><p>Scopus ID 14034384200, ResearcherID M-9255-2018</p></bio><bio xml:lang="en"><p>Mohammed Laraba – Dr. Sci., Lecturer, Department of Mines &amp; Geotechnology, Institute of Mining</p><p>Tébessa</p><p>Scopus ID 14034384200, ResearcherID M-9255-2018</p></bio><email xlink:type="simple">larabamd@univ-tebessa.dz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Университет Эхахида Шейха Ларби Тебеси<country>Алжир</country></aff><aff xml:lang="en">Echahid Cheikh Larbi Tebessi University<country>Algeria</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>08</day><month>10</month><year>2023</year></pub-date><volume>8</volume><issue>3</issue><fpage>215</fpage><lpage>222</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Laraba M., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Лараба М.</copyright-holder><copyright-holder xml:lang="en">Laraba M.</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/555">https://mst.misis.ru/jour/article/view/555</self-uri><abstract><p>The objective of this research is to study the removal of coloring impurities from Algerian kaolin ore (Tamazert kaolin, TK) located in the eastern region of Algeria, utilizing froth flotation process. The results obtained from XRF, SEM, and XRD characterization demonstrate that this local material is an alumino-silicate containing kaolinite, along with impurities such as Fe2O3 (&gt; 2.7 % by weight) and TiO2 (0.28 % by weight) which contribute to its coloring. After homogenization, crushing and milling, several froth flotation tests were conducted on TK. The results revealed that Tamazert kaolin exhibits favorable performance with froth flotation, in order to improve its properties. Based on the results obtained, it can be concluded that all fractions can be treated effectively using froth flotation with an optimal mass yield (weight recovery) of 79.84 % in concentrate for the fraction of 20–40 μm. Iron and titanium, the main coloring impurities in Tamazert kaolin, were reduced from 2.7 % to 0.08 % by weight for Fe2O3 in the fraction 20-40 μm, and from 0.28 % to 0.04 % by weight for TiO2 in the same fraction, as determined by the optimum test. The significant reduction in coloring impurities (Fe2O3 and TiO2) achieved through the flotation process confirms that iron is present in a free state in Tamazert kaolin. It can be ultimately confirmed that the froth flotation process can be a potentially effective process to improve the quality of Tamazert kaolin ore by removing Fe2O3 and TiO2 with satisfactory results which meet the requirements of local companies.</p></abstract><trans-abstract xml:lang="ru"><p>Целью данного исследования является изучение процесса удаления окрашивающих примесей из каолиновой руды месторождения Тамазерт (тамазертский каолин, TK), расположенного в восточном регионе Алжира, с использованием процесса пенной флотации. Исследования методами рентгенофлуоресцентной спектрометрии, сканирующей растровой электронной микроскопии и рентгенофазового анализа показали, что данный местный материал представляет собой алюмосиликат, содержащий каолинит, а также примеси Fe2O3 (&gt; 2,7 % по весу) и TiO2 (0,28 % по весу), которые способствуют его окрашиванию. После гомогенизации, дробления и измельчения ТК был подвергнут серии испытаний по пенной флотации. Результаты показали, что тамазертский каолин приобретает благоприятные характеристики после применения пенной флотации для улучшения его свойств. На основании полученных результатов можно сделать вывод, что все фракции могут быть эффективно обогащены методом пенной флотации с оптимальным массовым выходом по весу (извлечением по весу) 79,84 % в концентрат для фракции 20–40 мкм. Содержания железа и титана, являющихся основными окрашивающими примесями в тамазертском каолине, были снижены посредством флотационной обработки с 2,7 до 0,08 % по весу для Fe2O3 во фракции 20–40 мкм и с 0,28 до 0,04 % по весу для TiO2 в той же фракции, что было показано в оптимальном испытании. Значительное снижение содержаний окрашивающих примесей (Fe2O3 и TiO2), достигнутое в процессе флотации, подтверждает, что железо присутствует в тамазертском каолине в свободном состоянии. В итоге можно утверждать, что процесс пенной флотации может быть потенциально эффективным способом улучшения качества каолиновой руды Тамазерта путем удаления Fe2O3 и TiO2 с удовлетворительными результатами, отвечающими требованиям местных компаний.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>тамазертский каолин</kwd><kwd>пенная флотация</kwd><kwd>окрашивающие примеси</kwd><kwd>Fe2O3</kwd><kwd>TiO2</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Tamazert kaolin</kwd><kwd>froth flotation</kwd><kwd>coloring impurities</kwd><kwd>Fe2O3</kwd><kwd>TiO2</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Автор выражает благодарность профессору Хуану Марии Менендес-Агуадо из отдела горных работ и разведки лаборатории обогащения полезных ископаемых Политехнического института Миереса Университета Овьедо, Астурия, Испания, за техническую поддержку данной исследовательской работы.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The author expresses his gratitude to Professor Juan Maria Menendez-Aguado at Mining Exploitation &amp; Prospecting Dept., Mineral Raw Processing Material Laboratory, Polytechnic School of Mieres, University of Oviedo, Asturias, Spain, for the technical support of this research work.</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">Bundy W. 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