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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">vsgiu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Сибирского государственного индустриального университета</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of the Siberian State Industrial University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304 - 4497</issn><issn pub-type="epub">2307-1710</issn><publisher><publisher-name>Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.57070/2307-4497-2024-1(47)-142-149</article-id><article-id custom-type="elpub" pub-id-type="custom">vsgiu-92</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>Раздел 2. Металлургия и материаловедение</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Section 2. Metallurgy and Materials Science</subject></subj-group></article-categories><title-group><article-title>ФИЗИКО-ХИМИЧЕСКИЕ ПРОЦЕССЫ В ЖЕЛЕЗОРУДНОМ КОНЦЕНТРАТЕ, ПРОФИЛАКТИРОВАННОМ ИЗВЕСТЬЮ</article-title><trans-title-group xml:lang="en"><trans-title>PHYSICO-CHEMICAL PROCESSES IN IRON ORE CONCENTRATE, PREVENTED BY LIME</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>Кувшинникова</surname><given-names>Наталья Игоревна</given-names></name><name name-style="western" xml:lang="en"><surname>Kuvshinnikova</surname><given-names>Natal'ya I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ведущий инженер лаборатории экологии и комплексного использования минеральных отходов</p></bio><bio xml:lang="en"><p>Leading Engineer of the Laboratory of Ecology and Integrated Use of Mineral Waste</p></bio><email xlink:type="simple">n.kuvshinnikova@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>Пермяков</surname><given-names>Арнольд Аркадьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Permyakov</surname><given-names>Arnol'd A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к г.-м.н., научный руководитель лаборатории экологии и комплексногоиспользования минеральных отходов</p></bio><bio xml:lang="en"><p>Cand.of Geologo-Mineralogical Sciences, scientific supervisor of the Laboratory of Ecology and Integrated Use of Mineral Waste</p></bio><email xlink:type="simple">permyakovarnold@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7985-5666</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Темлянцев</surname><given-names>Михаил Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Temlyantsev</surname><given-names>Mikhail V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., профессор кафедры теплоэнергетики и экологии</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Prof. of the Department of Thermal Power Engineering and Ecology</p></bio><email xlink:type="simple">uchebn_otdel@sibsiu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>25</day><month>03</month><year>2024</year></pub-date><volume>0</volume><issue>1</issue><fpage>142</fpage><lpage>149</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кувшинникова Н.И., Пермяков А.А., Темлянцев М.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Кувшинникова Н.И., Пермяков А.А., Темлянцев М.В.</copyright-holder><copyright-holder xml:lang="en">Kuvshinnikova N., Permyakov A., Temlyantsev M.</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://vestnik.sibsiu.ru/jour/article/view/92">https://vestnik.sibsiu.ru/jour/article/view/92</self-uri><abstract><p>Выполнены технолого-минералогические исследования железорудного концентрата мокрой магнитной сепарации до, во время и после профилактирования обожженным известняком. Показано, что вода в составе профилактированного концентрата имеет сложный гетерогенный раствор, в котором присутствуют ионы Са2+, (ОН)–, Н+, а также коллоидно-дисперсные частицы СаО, Са(ОН)2, Fe2O4 и других минералов. Установлено, что частицы минералов профилактированного концентрата образуют между собой локально ориентированные агрегаты, а вода в процессе профилактирования становится структурированной. Выполненные дифференциально-термические анализы концентрата мокрой магнитной сепарации с добавлением разного количества извести (от 4 до 14 %). Установлено, что испарение воды в концентрате начинается с двадцать четвертой минуты после добавления извести и сопровождается большим количеством тепла. При этом скорость и температура процесса испарения воды зависит от количества извести, вносимой во влажный концентрат. Проведенные исследования позволили установить, что в процессе профилактирования концентрата испарение влаги протекает более интенсивно в первые четыре часа и в зависимости от массы добавляемого обожженного известняка влажность концентрата уменьшается на 0,3 – 1,0 %. Установлено, что дальнейшее уменьшение влаги в концентрате происходит за счет скрытой теплоты кристаллизации и минералообразования. Опытным путем установлено, что полное естественное высыхание концентрата в теплое время года длится примерно 160 ‒ 250 ч (при температуре 20 °С).</p></abstract><trans-abstract xml:lang="en"><p>Technological and mineralogical studies of the iron ore concentrate of wet magnetic separation were performed before, during and after prophylaxis with calcined limestone. It is shown that the water in the composition of the prophylactic concentrate has a complex heterogeneous solution in which Ca2+, (OH)–, H+ ions are present, as well as colloidal dispersed particles of CaO, Ca(OH)2, Fe2O4 and other minerals. It has been established that the mineral particles of the prophylactic concentrate form locally oriented aggregates among themselves, and the water becomes structured during prophylaxis. Differential thermal analyses of wet magnetic separation concentrate with the addition of different amounts of lime (from 4 to 14 %). It has been established that the evaporation of water in the concentrate begins from the twenty-fourth minute after the addition of lime and is accompanied by a large amount of heat. At the same time, the speed and temperature of the water evaporation process depends on the amount of lime introduced into the wet concentrate. The conducted studies allowed us to establish that during the prophylaxis of the concentrate, moisture evaporation proceeds more intensively in the first four hours and, depending on the mass of the burnt limestone added, the moisture content of the concentrate decreases by 0.3 – 1.0 %. It was found that a further decrease in moisture in the concentrate occurs due to the latent heat of crystallization and mineral formation. It has been experimentally established that the complete natural drying of the concentrate in the warm season lasts about 160 ‒ 250 hours (at a temperature of 20 °C).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>профилактирование</kwd><kwd>влага</kwd><kwd>концентрат</kwd><kwd>обезвоживание</kwd><kwd>сушка</kwd><kwd>гидратация</kwd><kwd>обезвоживание</kwd><kwd>обожженный известняк</kwd></kwd-group><kwd-group xml:lang="en"><kwd>prophylaxis</kwd><kwd>moisture</kwd><kwd>concentrate</kwd><kwd>dehydration</kwd><kwd>drying</kwd><kwd>dehydration</kwd><kwd>dehydration</kwd><kwd>burnt limestone</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">Берсенев И.С., Клейн В.И., Зарщиков П.И., Осокин Н.А., Щеглов В.Н. Производство извести на агломерационной машине МАК-90. 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