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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of Belgorod State Technological University named after. V. G. Shukhov</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of Belgorod State Technological University named after. V. G. Shukhov</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Вестник Белгородского государственного технологического университета им. В.Г. Шухова</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2071-7318</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">42397</article-id>
   <article-id pub-id-type="doi">10.34031/2071-7318-2021-6-3-97-106</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Химическая технология</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Chemical technology</subject>
    </subj-group>
    <subj-group>
     <subject>Химическая технология</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">THE STUDY OF DEHYDRATION OF COLEMANITE  IN NON-ISOTHERMAL CONDITIONS</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИССЛЕДОВАНИЕ ДЕГИДРАТАЦИИ КОЛЕМАНИТА  В НЕИЗОТЕРМИЧЕСКИХ УСЛОВИЯХ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Бессмертный</surname>
       <given-names>В. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bessmertnyy</surname>
       <given-names>V. S.</given-names>
      </name>
     </name-alternatives>
     <email>vbessmertnyi@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
     <xref ref-type="aff" rid="aff-2"/>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Бондаренко</surname>
       <given-names>М. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bondarenko</surname>
       <given-names>M. A.</given-names>
      </name>
     </name-alternatives>
     <email>slaviki1@yandex.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пучка</surname>
       <given-names>О. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Puchka</surname>
       <given-names>O. V.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Черкасов</surname>
       <given-names>А. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Cherkasov</surname>
       <given-names>A. V.</given-names>
      </name>
     </name-alternatives>
     <email>andrey.bstu@mail.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Изотова</surname>
       <given-names>И. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Izotova</surname>
       <given-names>I. A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Брагина</surname>
       <given-names>В. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bragina</surname>
       <given-names>V. S.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Платов</surname>
       <given-names>Ю. Т.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Platov</surname>
       <given-names>Y. T.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-8"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Брагина</surname>
       <given-names>Л. Л.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bragina</surname>
       <given-names>Lyudmila Lazarevna</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-9"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <country>RU</country>
    </aff>
    <aff>
     <institution xml:lang="en">Belgorod State Technological University named after V.G. Shukhov</institution>
     <country>RU</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Белгородский университет кооперации, экономики и права</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Belgorod University of Cooperation, Economics and Law</institution>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Старооскольский технологический институт им. А. А. Угарова (филиал) Национального исследовательского технологического университета «МИСиС»</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Stary Oskol Technological Institute after A. A. Ugarov, National University of Science and Technology “MISiS” branch</institution>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <city>Белгород</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <city>Белгород</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <city>Белгород</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Belgorod State Technological University named after V.G. Shukhov</institution>
     <city>Belgorod</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им В.Г. Шухова</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Belgorod State Technological University named after V.G. Shukhov</institution>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <city>Белгород</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Belgorod State Technological University named after V.G. Shukhov</institution>
     <city>Belgorod</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-8">
    <aff>
     <institution xml:lang="ru">Российский экономический университет им. Г.В. Плеханова</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Plekhanov Russian University of Economics</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-9">
    <aff>
     <institution xml:lang="ru">Национальный технический университет «Харьковский политехнический институт»</institution>
    </aff>
    <aff>
     <institution xml:lang="en">National Technical University «Kharkov Polytechnic Institute»</institution>
    </aff>
   </aff-alternatives>
   <volume>6</volume>
   <issue>3</issue>
   <fpage>97</fpage>
   <lpage>106</lpage>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/42397/view">https://zh-szf.ru/en/nauka/article/42397/view</self-uri>
   <abstract xml:lang="ru">
    <p>Исследованы закономерности дегидратации колеманита в неизотермических условиях. Установлено, что колеманит, поставляемый в РФ из Турции, имеет в своем составе кальцит. С использованием рентгенофлуоресцентного метода анализа установлен химический состав колеманита. Показано, что процессы дегидратации колеманита в неизотермических условиях при скорости нагрева 10 °С/мин сопровождаются двумя эндотермическими эффектами при 660,7 К и 675,7 К с общей потерей массы 17,3 %. Так же исследована скорость потери массы колеманита от температуры при нагреве до 773 К, при которой колеманит дегидратирует и переходит в аморфную фазу. Установлены закономерности изменения скорости дегидратации колеманита. Показано, что максимальные значения скорости дегидратации колеманита наблюдаются в интервале температур 653-678 К. Определена энергия активации дегидратации колеманита, равная 86000 Дж/моль. На основе экспериментально полученных данных рассчитана константа скорости процесса дегидратации колеманита. Процесс дегидратации колеманита удовлетворительно описывается формальным уравнением кинетики. Большая часть кинетической кривой удовлетворительно описывается полученным кинетическим уравнением. Предложено механизм дегидратации колеманита описывать двухстадийным процессом, сопровождающимся на первом этапе удалением кристаллизационной воды, а на втором этапе – удалением гидроксильных групп.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The regularities of colemanite dehydration under non-isothermal conditions are investigated. It is established that colemanite, supplied to the Russian Federation from Turkey, has calcite in its composition. The chemical composition of colemanite is determined using the X-ray fluorescence analysis method. It is shown that the processes of dehydration of colemanite under non-isothermal conditions at a heating rate of 10 °С / min are accompanied by two endothermic effects at 660,7 K and 675,7 K with a total mass loss of 17,3 %. The rate of mass loss of colemanite from the temperature at heating up to 773 K, at which colemanite dehydrates and passes into the amorphous phase, is also studied. The regularities of changes in the rate of dehydration of colemanite are established. It is shown that the maximum values of the dehydration rate of colemanite are observed in the temperature range of 653–678 K. The activation energy of colemanite dehydration is determined to be 86,000 J/mol. Based on the experimentally obtained data, the rate constant of the colemanite dehydration process is calculated. The process of dehydration of colemanite is adequately described by the formal equation of kinetics. Most of the kinetic curve is adequately described by the resulting kinetic equation. It is proposed to describe the mechanism of dehydration of colemanite by a two-stage process, accompanied at the first stage by the removal of crystallization water, and at the second stage-by the removal of hydroxyl groups</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>колеманит</kwd>
    <kwd>дегидратация</kwd>
    <kwd>неизотермические условия</kwd>
    <kwd>энергия активации</kwd>
    <kwd>эндотермические эффекты</kwd>
    <kwd>кинетическое уравнение</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>colemanite</kwd>
    <kwd>dehydration</kwd>
    <kwd>non-isothermal conditions</kwd>
    <kwd>activation energy</kwd>
    <kwd>endothermic effects</kwd>
    <kwd>kinetic equation</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
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