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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">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2017-12-1-39-44</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-71</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>CHEMISTRY AND TECHNOLOGY OF INORGANIC MATERIALS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ НЕОРГАНИЧЕСКИХ МАТЕРИАЛОВ</subject></subj-group></article-categories><title-group><article-title>BISMUTH TELLURID WASTE PROCESSING</article-title><trans-title-group xml:lang="ru"><trans-title>ПЕРЕРАБОТКА ОТХОДОВ ТЕЛЛУРИДА ВИСМУТА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Цыганкова</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsygankova</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>старший научный сотрудник</p></bio><bio xml:lang="en"><p>Moscow, 119571 Russia</p></bio><email xlink:type="simple">tender-mitht@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>Перминова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Perminova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>менеджер по качеству</p></bio><bio xml:lang="en"><p>Moscow, 117218 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чукманова</surname><given-names>М. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Chukmanova</surname><given-names>M. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>младший научный сотрудник</p></bio><bio xml:lang="en"><p>Almaty, 050000 Republic of Kazakhstan</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Райкин</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Raikina</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>Moscow, 119571 Russia</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский технологический университет (Институт тонких химических технологий),\</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technological University (Institute of Fine Chemical Technologies)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Международный научно-исследовательский центр охраны здоровья человека, животных и окружающей среды</institution><country>Россия</country></aff><aff xml:lang="en"><institution>International Research Centre of Protection of Human Health, Animals and the Environment</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Казахстанско-Британский технический университет</institution><country>Казахстан</country></aff><aff xml:lang="en"><institution>Kazakh-British Technical University, Almaty</institution><country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>28</day><month>02</month><year>2017</year></pub-date><volume>12</volume><issue>1</issue><fpage>39</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Tsygankova M.V., Perminova E.A., Chukmanova M.T., Raikina O.A., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Цыганкова М.В., Перминова Е.А., Чукманова М.Т., Райкин О.А.</copyright-holder><copyright-holder xml:lang="en">Tsygankova M.V., Perminova E.A., Chukmanova M.T., Raikina O.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://www.finechem-mirea.ru/jour/article/view/71">https://www.finechem-mirea.ru/jour/article/view/71</self-uri><abstract><p>The main stages of bismuth telluride processing comprising sintering with NaOH, leaching and precipitation were investigated. Bi2Te3 samples produced by "ADV Engineering" were used as starting compounds. The studies revealed regularities of tellurium behavior during the sintering of Bi2Te3 with NaOH and the resulting the solid residue leaching. It was noted that annealing at 350-450°C with NaOH transforms tellurium into Na2TeO3, which is an appropriate form for further dissolution and separation from bismuth. Increasing temperature results in Na2TeO3 oxidation and formation of the water-insoluble compound Na2TeO4. Thus, it decreases tellurium extraction degree during the leaching. It has been shown that increasing temperature from 8 to 25°C at the step of tellurium hydrolytic precipitation slightly affects the extraction degree, the value of which is 93.5-98.2%.</p></abstract><trans-abstract xml:lang="ru"><p>В работе исследованы основные стадии переработки теллурида висмута Bi2Te3, включающие: спекание с NaOH, выщелачивание и гидролитическое осаждение. В качестве исходных веществ использованы образцы ООО «АДВ Инжиниринг». В результате проведенных исследований выявлены закономерности поведения теллура на стадии спекания Bi2Te3 с NaOH и выщелачивания полученного спека. Отмечено, что при температуре 350-450°С на стадии спекания с NaOH теллур переходит в форму Na2TeO3, удобную для дальнейшего извлечения в раствор и отделения от висмута. Увеличение температуры приводит к окислению Na2TeO3 и образованию Na2TeO4 - соединения, не растворимого в воде, и тем самым - снижению степени извлечения теллура на стадии выщелачивания. Показано, что увеличение температуры от 8 до 25°С на стадии гидролитического осаждения теллура практически не влияет на степень его извлечения, которая составляет 93.5-98.2%.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>теллурид висмута</kwd><kwd>спекание</kwd><kwd>выщелачивание</kwd><kwd>степень извлечения</kwd><kwd>гидролитическое осаждение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>bismuth telluride</kwd><kwd>annealing</kwd><kwd>leaching</kwd><kwd>recovery rate</kwd><kwd>precipitation</kwd><kwd>recycling</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">Абрикосов Н.Х., Банкина В.Ф., Порецкая .В., Скуднова Е.В., Шелимова Л.Е. Полупроводниковые соединения, их получение и свойства. М.: Наука, 1967. 174 с.</mixed-citation><mixed-citation xml:lang="en">Abrikosov N.H., Bankina V.F., Poretskaya L.V., Skudnova E.V., Shelimova L.E. 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