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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Melts</journal-id><journal-title-group><journal-title xml:lang="en">Melts</journal-title><trans-title-group xml:lang="ru"><trans-title>Расплавы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0235-0106</issn><issn publication-format="electronic">3034-5715</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">680925</article-id><article-id pub-id-type="doi">10.31857/S0235010625020076</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Electrical conductivity of salt melts, containing zirconium tetrachloride</article-title><trans-title-group xml:lang="ru"><trans-title>Электропроводность солевых расплавов, содержащих тетрахлорид циркония</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Salyulev</surname><given-names>A. B.</given-names></name><name xml:lang="ru"><surname>Салюлев</surname><given-names>А. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>salyulev@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Potapov</surname><given-names>А. M.</given-names></name><name xml:lang="ru"><surname>Потапов</surname><given-names>А. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>salyulev@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Institute of High‒Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">Институт высокотемпературной электрохимии УрО РАН</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-03-15" publication-format="electronic"><day>15</day><month>03</month><year>2025</year></pub-date><issue>2</issue><issue-title xml:lang="ru"/><fpage>161</fpage><lpage>175</lpage><history><date date-type="received" iso-8601-date="2025-05-28"><day>28</day><month>05</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Российская академия наук</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/0235-0106/article/view/680925">https://journals.eco-vector.com/0235-0106/article/view/680925</self-uri><abstract xml:lang="en"><p>The present paper presents an overview of the available experimental data (both our data and provided by other researchers) on the electrical conductivity of ZrCl₄–containing salt melts, for which the saturated vapor pressure of ZrCl₄ above them is P ⩽ 1 atm. These melts have a significant practical application potential. Such mixtures are divided into high‒temperature mixtures with a ZrCl₄<sub> </sub>concentration of 0‒30 mol. %, and low‒temperature ones, with a narrower ZrCl₄ content range of 50‒75 mol. %. Based on the obtained experimental data it was found that the electrical conductivity of all molten ZrCl₄–containing mixtures increases as the temperature increases, zirconium tetrachloride concentration decreases, and the molten solvent salt is replaced in the row from CsCl to LiCl. The experimental data obtained are summarized and discussed taking into account the available information on the structure of the molten mixtures. Electrical conductivity of high–temperature MCl‒ZrCl₄ melts (0‒30 mol. % ZrCl₄; M is an alkali metal), is in the range of 0.6–3.1 Cm/cm, which is significantly higher than the electrical conductivity of low–melting molten mixtures of the same chlorides (0.1‒0.5 Cm/cm) with a high content of ZrCl₄ (55‒75 mol. %). It has been found that the use of low‒melting salt solvents, for example, LiCl–KCl eutectic, makes it possible to expand the range of existence of ZrCl₄‒containing melts by hundreds of degrees towards lower temperatures and saturated vapor pressures at sufficiently high values of electrical conductivity (0.9–2.8 Cm/cm). This provides additional advantages for the organization of various technological processes.</p></abstract><trans-abstract xml:lang="ru"><p>Дан обзор имеющихся экспериментальных данных (как наших, так и других исследователей) по электропроводности ZrCl₄–содержащих солевых расплавов, для которых давление насыщенных паров ZrCl₄<sub> </sub>над ними <italic>P</italic> ⩽ 1 атм. Эти расплавы имеют существенный потенциал практического применения. Такие смеси делятся на высокотемпературные, с концентрацией 0–30 мол. % ZrCl₄, и на низкотемпературные, с более узким содержанием ZrCl₄ 50–75 мол. %. Установлено, что электропроводность всех расплавленных ZrCl₄–содержащих смесей возрастает при повышении температуры, уменьшении концентрации тетрахлорида циркония и при замене расплава соли‒растворителя в ряду от CsCl к LiCl. Полученные экспериментальные данные обобщены и обсуждены с учетом имеющихся сведений о структуре расплавленных смесей. Электропроводность высокотемпературных расплавов MCl–ZrCl₄<sub> </sub>(0–30 мол. % ZrCl₄; М – щелочной металл), находится в пределах 0.6–3.1 См/см, что значительно выше, чем у легкоплавких расплавленных смесей тех же хлоридов (0.1–0.5 См/см) с высоким содержанием ZrCl₄ (55–75 мол. %). Установлено, что использование низкоплавких солевых растворителей, например, эвтектики LiCl‒KCl, позволяет на сотни градусов расширить диапазон существования ZrCl₄–содержащих расплавов в сторону более низких температур и давлений насыщенных паров при достаточно высоких величинах электропроводности (0.9–2.8 См/см). Это дает дополнительные преимущества для организации различных технологических процессов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>ZrCl₄</kwd><kwd>electrical conductivity</kwd><kwd>molten salts</kwd><kwd>alkali metal chlorides</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ZrCl₄</kwd><kwd>электропроводность</kwd><kwd>расплавленные соли</kwd><kwd>хлориды щелочных металлов</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Morozov I.S. Primeneniye khlora v metallurgii redkikh i tsvetnykh metallov [Application of chlorine in metallurgy of rare and non‒ferrous metals]. M.: Nauka. 1966. [In Russian].</mixed-citation><mixed-citation xml:lang="ru">Морозов И.С. Применение хлора в металлургии редких и цветных металлов. 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