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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestich-276</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>ТЕХНИЧЕСКАЯ ХИМИЯ И ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL CHEMISTRY AND CHEMICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>ПОЛУЧЕНИЕ СУЛЬФАТА КАЛИЯ ВЗАИМОДЕЙСТВИЕМ ХЛОРИДА КАЛИЯ И СУЛЬФАТА КАЛЬЦИЯ</article-title><trans-title-group xml:lang="en"><trans-title>PREPARATION OF POTASSIUM SULFATE IN A REACTION OF POTASSIUM CHLORIDE AND CALCIUM SULFATE</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>Гончарик</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Goncharik</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, ст. науч. сотрудник</p></bio><bio xml:lang="en"><p>Ph. D. (Engineering), Senior Researcher</p></bio><email xlink:type="simple">igiclpns@rambler.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>Шевчук</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shauchuk</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р хим. наук, зав. отделом</p></bio><bio xml:lang="en"><p>D. Sc. (Chemistry), Head of Department</p></bio><email xlink:type="simple">shevchukslava@rambler.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>Кудина</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudzina</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>науч. сотрудник</p></bio><bio xml:lang="en"><p>Researcher</p></bio><email xlink:type="simple">olga091@rambler.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>Можейко</surname><given-names>Ф. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Mozheyko</surname><given-names>F. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>член-кор., д-р хим. наук</p></bio><bio xml:lang="en"><p>Corresponding Member of the National Academy of Sciences of Belarus, D. Sc. (Chemistry)</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт общей и неорганической химии НАН Беларуси</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>08</day><month>10</month><year>2017</year></pub-date><volume>0</volume><issue>3</issue><fpage>98</fpage><lpage>103</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гончарик И.И., Шевчук В.В., Кудина О.А., Можейко Ф.Ф., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Гончарик И.И., Шевчук В.В., Кудина О.А., Можейко Ф.Ф.</copyright-holder><copyright-holder xml:lang="en">Goncharik I.I., Shauchuk V.V., Kudzina O.A., Mozheyko F.F.</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://vestichem.belnauka.by/jour/article/view/276">https://vestichem.belnauka.by/jour/article/view/276</self-uri><abstract><p>В результате исследований установлено, что присутствие при конверсии хлорида калия и сульфата кальция триэтаноламина способствует образованию сульфата калия по реакции: 2KCl + CaSO4∙2H2O → K2SO4 + CaCl2 + 2H2O, тогда как в водной среде этот процесс осуществляется в две стадии: с образованием на первой сингенита и разложением К2SO4·CaSO4·H2O на второй стадии до сульфата калия по схеме: 2KCl + 2CaSO4∙2H2O → K2SO4·CaSO4·H2O + CaCl2 + H2O, K2SO4·CaSO4·H2O → K2SO4 + CaSO4 + H2O. Определены оптимальные условия проведения реакции (1) в присутствии триэтаноламина. Для успешного осуществления данного процесса необходимо использовать 60%-ную концентрацию триэтаноламина при норме расхода КС1 140– 160% от стехиометрии в течение 3 ч перемешивания и частоте вращения мешалки 350 об/мин. При выполнении этих условий содержание К2SO4 в готовом продукте составляет 91–93%, а степень использования иона калия – 90–92%.</p><p> </p></abstract><trans-abstract xml:lang="en"><p>The introduction of triethanolamine into conversion of potassium chloride and calcium sulfate was found to promote the formation of potassium sulfate on a reaction: 2KCl + CaSO4∙2H2O → K2SO4 + CaCl2 + 2H2O, while in a water media this process consists of two stages. On the first stage syngenite is formed, while on the second stage К2SO4·CaSO4·H2O is decomposed with a formation of potassium sulfate as follows: 2KCl + 2CaSO4∙2H2O→ K2SO4·CaSO4·H2O + CaCl2 + H2O, K2SO4·CaSO4·H2O → K2SO4 + CaSO4 + H2O. The optimal conditions of realization of reaction (1) in presence a triethanolamine are found. For this process to be fulfilled, the 60% concentration of triethanolamine is necessary, with the norm of КС1 flow of 140-160% from stoichiometry and a 3 h of agitation at the rotation speed of 350 turns/min. At these conditions the content of К2SO4 in the prepared product is 91–93 % and the utilization factor of potassium ion is 90–92%.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>конверсия</kwd><kwd>фосфогипс</kwd><kwd>хлорид калия</kwd><kwd>температура</kwd><kwd>время перемешивания</kwd></kwd-group><kwd-group xml:lang="en"><kwd>conversion</kwd><kwd>phosphogypsum</kwd><kwd>potassium chloride</kwd><kwd>temperature</kwd><kwd>rotation speed of the agitator</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">Свешникова, В. Н. 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