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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">10.17073/0368-0797-2019-5-381-386</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1623</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>ЭКОЛОГИЯ И РАЦИОНАЛЬНОЕ ПРИРОДОПОЛЬЗОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ECOLOGY AND RATIONAL USE OF NATURAL RESOURCES</subject></subj-group></article-categories><title-group><article-title>КОНТРОЛЬ ФТОРА В МЕТАЛЛУРГИЧЕСКОМ ТОПЛИВЕ</article-title><trans-title-group xml:lang="en"><trans-title>CONTROL OF FLUORINE IN METALLURGICAL FUEL</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>Муравьева</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Murav’eva</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры сертификации и аналитического контроля</p><p>119049, Москва, Ленинский пр., 4</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Certification and Analytical Control </p><p>Moscow</p></bio><email xlink:type="simple">iravm@bk.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>Бебешко</surname><given-names>Г. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Bebeshko</surname><given-names>G. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., главный научный сотрудник</p><p>119034, Москва, Пречистенская набережная, 15</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Chief Researcher </p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology “MISIS” (MISIS)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Российский федеральный центр судебной экспертизы при Министерстве юстиции Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Federal Centre of Forensic Science of the Ministry of Justice of the Russian Federation</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>19</day><month>06</month><year>2019</year></pub-date><volume>62</volume><issue>5</issue><fpage>381</fpage><lpage>386</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Муравьева И.В., Бебешко Г.И., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Муравьева И.В., Бебешко Г.И.</copyright-holder><copyright-holder xml:lang="en">Murav’eva I.V., Bebeshko G.I.</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/1623">https://fermet.misis.ru/jour/article/view/1623</self-uri><abstract><p>Металлургическое топливо, включающее разнообразные виды минерального топлива, такие как кокс, каменный и бурый уголь, торф, горючие сланцы и продукты их технологического передела, нуждается в экологическом контроле безопасности применения. При сжигании металлургического топлива в окружающую среду попадают вредные вещества (хлор, фтор, сера, мышьяк), что ухудшает экологическую обстановку. Технический регламент по безопасности угольной продукции содержит требования по ограничению содержания вредных примесей и их предельно допустимые концентрации. Вследствие широкой распространенности фтора в природных и техногенных объектах и высокой токсичности его соединений, особое внимание уделяется контролю содержания фтора при промышленном использовании металлургического топлива. Физические методы определения фтора в топливе, основанные на возбуждении различных спектров изучения, позволяют определять его без разложения непосредственно в исходном твердом материале. Однако они имеют ряд ограничений: чувствительность, точность определения, сложность аппаратурного оформления. В других методах, преимущественно ионохроматографических и ионометрических, пробы разлагают и определение содержания фтора выполняют в растворе. Для разложения обычно применяют высокотемпературные процессы: пирогидролиз, сжигание в атмосфере кислорода и калориметрической бомбе, а также щелочное сплавление. Целью данной работы является создание селективной методики ионометрического определения фтора с фторид-селективным электродом. Объектами исследования были образцы углей: бурый, газовый, полукокс, коксик орешек. Предложено эффективное разложение проб путем двухступенчатого высокотемпературного сплавления с KNaCO3. Для перевода фтора в раствор в виде свободного фторид-иона выполняли гидролитическое соосаждение сопутствующих мешающих катионов с хлористым железом (II). Приведено описание процедуры анализа: разложение пробы и ионометрическое определение фтора. Выполнена оценка правильности и прецизионности разработанной методики методом варьирования навески. Найденные содержания фтора в исследованных образцах не превышали предельных значений, характерных для товарных образцов угольной продукции, что указывает на экологическую безопасность образцов при их последующем энергетическом применении. Разработанная методика перспективна для контроля примеси фтора в металлургическом топливе и отличается селективностью и простотой исполнения.</p></abstract><trans-abstract xml:lang="en"><p>Metallurgical fuel, including various types of mineral fuels: coke, hard coal, brown coal, peat, combustible shales and products of their technological conversion – needs environmental control of their use safety. When burning metallurgical fuel, harmful substances fall into the environment such as chlorine, fluorine, sulfur, arsenic, which worsen the environmental situation. Technical regulations on the safety of coal products contain requirements to limit the content of harmful impurities and their maximum permissible concentrations. Due to the wide spread of fluorine in natural and technological objects and the high toxicity of its compounds, the control of fluorine content is an urgent problem in the industrial use of metallurgical fuel. Physical methods for the determination of fluorine in solid fuel based on excitation of different spectra of the studies allow to identify it without decomposition directly in the source solid material, however, they have several limitations (sensitivity, accuracy of definition, complexity of hardware design). In other methods, mainly in ionchromatography and ionometry, samples are decomposed and fluorine is transferred into the solution. High temperature processes: pyrohydrolysis and combustion melting are usually used for decomposition. The aim of this work was to create a selective method for ionometric determination of fluorine with a fluoride-selective electrode. The study objects were samples of coal: brown, gas, semicoke, coke nut. Effective decomposition of the samples by two-stage high-temperature melting with KNaCO3 is proposed. Hydrolysis coprecipitation of accompanying interfering cations with chloride iron (II) was carried out for fluorine discharge in the solution in the form of free fluoride. The procedure of decomposition and ionometric determination of fluorine is described. The estimation of trueness and reproducibility of the developed technique by the method of sample variation was carried out. Fluorine content in the studied samples did not exceed the limit- tolerance values for commercial samples of coal products, which indicates the environmental safety of the samples in their subsequent energy application. The developed method is promising for the control of fluorine impurity in metallurgical fuel and is characterized by selectivity and simple carrying out.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>металлургическое топливо</kwd><kwd>фтор</kwd><kwd>методы определения</kwd><kwd>контроль безопасности углей</kwd><kwd>ионометрический метод</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metallurgical fuel</kwd><kwd>fluorine</kwd><kwd>determination methods</kwd><kwd>coal safety control</kwd><kwd>ionometric method</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">Иванов В.В. Экологическая геохимия элементов. Кн. 2. – М.: Недра, 1994. С. 263 – 282.</mixed-citation><mixed-citation xml:lang="en">Ivanov V.V. Ekologicheskaya geokhimiya elementov [Ecological geochemistry of elements]. Moscow: Nedra, 1994, Book 2, pp. 263–282. 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