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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">nuc</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НЯЦ РК</journal-title><trans-title-group xml:lang="en"><trans-title>NNC RK Bulletin</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-7516</issn><issn pub-type="epub">1729-7885</issn><publisher><publisher-name>Национальный ядерный центр Республики Казахстан</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.52676/1729-7885-2025-3-86-93</article-id><article-id custom-type="elpub" pub-id-type="custom">nuc-846</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>Статьи</subject></subj-group></article-categories><title-group><article-title>СОЛЁНЫЕ ВОДЫ МАНГИСТАУ КАК ОБЪЕКТ ИЗУЧЕНИЯ ДЛЯ ИЗВЛЕЧЕНИЯ ЛИТИЯ: ПРИРОДНЫЕ И ТЕХНОГЕННЫЕ ИСТОЧНИКИ</article-title><trans-title-group xml:lang="en"><trans-title>SALT WATERS OF MANGYSTAU AS AN OBJECT OF STUDY FOR LITHIUM EXTRACTION: NATURAL AND MAN-MADE SOURCES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8030-8934</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Серикбаева</surname><given-names>А. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Serikbayeva</surname><given-names>A. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Серикбаева Акмарал Кабылбековна - к.т.н., профессор кафедры "Экология и геология".</p><p>Актау</p></bio><bio xml:lang="en"><p>Aktau</p></bio><email xlink:type="simple">akmaral.serikbayeva@yu.edu.kz</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2732-3507</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Боранбаева</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Boranbayeva</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Боранбаева Асия Нурлыбаевна - PhD, и.о. ассоциированного профессора кафедры "Естественные науки", факультета "Науки и технологии".</p><p>Актау</p></bio><bio xml:lang="en"><p>Aktau</p></bio><email xlink:type="simple">assiya.boranbayeva@yu.edu.kz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Каспийский университет технологий и инжиниринга им. Ш. Есенова<country>Казахстан</country></aff><aff xml:lang="en">Caspian University of Technology and Engineering named after Sh. Yessenov<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>22</day><month>10</month><year>2025</year></pub-date><volume>0</volume><issue>3</issue><fpage>86</fpage><lpage>93</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Серикбаева А.К., Боранбаева А.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Серикбаева А.К., Боранбаева А.Н.</copyright-holder><copyright-holder xml:lang="en">Serikbayeva A.K., Boranbayeva A.N.</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://journals.nnc.kz/jour/article/view/846">https://journals.nnc.kz/jour/article/view/846</self-uri><abstract><p>В работе представлен комплексный анализ содержания лития в водных пробах различного происхождения с целью оценки перспективности их промышленного использования. Установлено, что наиболее целесообразным источником лития является рассол, образующийся при опреснении морской воды на предприятии ТОО «МАЭК», с массовой концентрацией лития 2,10 мг/л (0,0021%). Проведённые спектральные и рентгенофазовые анализы показали, что основной минеральной фазой в твёрдом осадке является сульфат кальция (гипс) с долей до 95,2%, с примесями бассанита (Bassanite) и галита (Halite). Установлено, что литий преимущественно сохраняется в жидкой фазе после упаривания, что делает целесообразным применение методов извлечения из раствора, таких как ионный обмен, мембранные технологии и сорбционные процессы. Ионно-солевой состав рассолов указывает на натрий-хлоридный тип с высокой минерализацией, наличие сульфатов, магния и других ионов, что требует предварительной подготовки раствора перед извлечением лития. Несмотря на невысокую концентрацию лития, совокупность физических и химических характеристик исследуемых рассолов позволяет рассматривать их в качестве дополнительного источника литиевого сырья.</p></abstract><trans-abstract xml:lang="en"><p>The paper presents a comprehensive analysis of the lithium content in aqueous samples of various origins in order to assess the prospects for their industrial use. It has been established that the most appropriate source of lithium is brine formed during desalination of seawater at the MAEK LLP enterprise, with a mass concentration of lithium of 2.10 mg/l (0.0021%). Spectral and X-ray phase analyses have shown that the main mineral phase in the solid sediment is calcium sulfate (gypsum) with a fraction of up to 95.2%, with admixtures of bassanite and halite. It has been established that lithium is predominantly preserved in the liquid phase after evaporation, which makes it advisable to use methods of extraction from solution, such as ion exchange, membrane technologies and sorption processes. The ionic-salt composition of the brines indicates a sodium chloride type with high mineralization, the presence of sulfates, magnesium and other ions, which requires preliminary preparation of the solution before lithium extraction. Despite the low concentration of lithium, the combination of physical and chemical characteristics of the studied brines allows them to be considered as an additional source of lithium raw materials.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>литий</kwd><kwd>рассолы</kwd><kwd>морская вода</kwd><kwd>подземная вода</kwd><kwd>сточная вода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lithium</kwd><kwd>saline solutions</kwd><kwd>seawater</kwd><kwd>underground water</kwd><kwd>wastewater</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Данное исследование финансировалось Комитетом науки Министерства науки и высшего образования Республики Казахстан (грант № AP22686075).</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">William T. Stringfellow and Patrick F. Dobson. 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