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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">catal</journal-id><journal-title-group><journal-title xml:lang="ru">Катализ в промышленности</journal-title><trans-title-group xml:lang="en"><trans-title>Kataliz v promyshlennosti</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0387</issn><issn pub-type="epub">2413-6476</issn><publisher><publisher-name>LLC "KALVIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18412/1816-0387-2020-1-67-75</article-id><article-id custom-type="elpub" pub-id-type="custom">catal-674</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>БИОКАТАЛИЗ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOCATALYSIS</subject></subj-group></article-categories><title-group><article-title>Экспериментальная и математическая оптимизация процесса пероксидной делигнификации древесины лиственницы в присутствии катализатора MnSO4</article-title><trans-title-group xml:lang="en"><trans-title>Experimental and mathematical optimization of the peroxide delignification of larch in the presence of MnSO4 catalyst</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>Судакова</surname><given-names>И. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sudakova</surname><given-names>I. G.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Гарынцева</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Garyntseva</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Чудина</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Chudina</surname><given-names>A. I.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.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>Кузнецов</surname><given-names>Б. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuznetsov</surname><given-names>B. N.</given-names></name></name-alternatives><email xlink:type="simple">ctls@kalvis.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Институт химии и химической технологии СО РАН ФИЦ «Красноярский научный центр СО РАН» (ИХХТ СО РАН, ФИЦ КНЦ СО РАН), Красноярск</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>Институт химии и химической технологии СО РАН ФИЦ «Красноярский научный центр СО РАН» (ИХХТ СО РАН, ФИЦ КНЦ СО РАН), Красноярск; Сибирский федеральный университет (СФУ), Красноярск</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>22</day><month>01</month><year>2020</year></pub-date><volume>20</volume><issue>1</issue><fpage>67</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; LLC "KALVIS", 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">LLC "KALVIS"</copyright-holder><copyright-holder xml:lang="en">LLC "KALVIS"</copyright-holder><license xlink:href="https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.catalysis-kalvis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.catalysis-kalvis.ru/jour/article/view/674">https://www.catalysis-kalvis.ru/jour/article/view/674</self-uri><abstract><p>Экспериментальными и расчетными методами определены оптимальные параметры процесса пероксидной делигнификации древесины лиственницы в присутствии катализатора MnSO4, обеспечивающие высокий выход целлюлозы (44,3 мас.%) с низким содержанием остаточного лигнина: температура – 100 °C, содержание Н2О2 – 6 мас.%, CH3COOH – 25 мас.%, ГМ – 15, продолжительность – 3 ч. Полученная в оптимальных условиях целлюлоза имела следующий химический состав: целлюлоза – 92,7 мас.%, лигнин – 0,6 мас.%, гемицеллюлозы – 5,7 мас.%. Методами ИКС и РФА установлено, что полученная из древесины лиственницы целлюлоза имеет структуру, аналогичную структуре промышленной микрокристаллической целлюлозы. Предложенный каталитический метод позволяет получать из древесины лиственницы целлюлозу с минимальным содержанием лигнина в мягких условиях в одну стадию с высоким выходом, степенью кристалличности 0,8 и размерами кристаллитов 3,0 нм.</p></abstract><trans-abstract xml:lang="en"><p>Experimental and mathematical methods were used to obtain the optimal parameters of peroxide delignification of larch in the presence of MnSO4 catalyst, which provide a high yield of cellulose (44.3 wt.%) with a low content of residual lignin: temperature 100 °C, content of H2O2 6 wt.%, CH3COOH 25 wt.%, hydromodulus 15, and duration 3 h. The cellulose produced under optimal conditions had the following chemical composition: cellulose 92.7 wt.%, lignin 0.6 wt.%, and hemicellulose 5.7 wt.%. IR spectroscopy and XRD studies revealed that the structure of cellulose produced from larch is similar to that of industrial microcrystalline cellulose. The proposed catalytic method allows obtaining larch-derived cellulose with a minimum content of lignin under mild conditions in a single step with a high yield, crystallinity 0.8 and crystallite size 3.0 nm.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>древесина лиственницы</kwd><kwd>делигнификация</kwd><kwd>пероксид водорода</kwd><kwd>уксусная кислота</kwd><kwd>катализатор MnSO4</kwd><kwd>математическая оптимизация</kwd><kwd>целлюлоза</kwd></kwd-group><kwd-group xml:lang="en"><kwd>larch</kwd><kwd>delignification</kwd><kwd>hydrogen peroxide</kwd><kwd>acetic acid</kwd><kwd>MnSO4 catalyst</kwd><kwd>mathematical optimization</kwd><kwd>cellulose</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">Raud M., Kikas T., Sippula O., Shurpali N.J. // Renewable and Sustainable Energy Reviews. 2019.111, р. 44-56.</mixed-citation><mixed-citation xml:lang="en">Raud M., Kikas T., Sippula O., Shurpali N.J. // Renewable and Sustainable Energy Reviews. 2019.111, р. 44-56.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang K., Pei Z., Wang D. // Bioresource Technology. 2016, 199, p. 21–33.</mixed-citation><mixed-citation xml:lang="en">Zhang K., Pei Z., Wang D. // Bioresource Technology. 2016, 199, p. 21–33.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Brinchi L., Cotana F., Fortunati E., Kenny J.M. // Carbohydrate Polymers.2013. 94,p. 154-169.</mixed-citation><mixed-citation xml:lang="en">Brinchi L., Cotana F., Fortunati E., Kenny J.M. // Carbohydrate Polymers.2013. 94,p. 154-169.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Li X., XuR.,YangJ. et al. // Industrial Crops and Products. 2019. 130. p. 184-197.</mixed-citation><mixed-citation xml:lang="en">Li X., XuR.,YangJ. et al. // Industrial Crops and Products. 2019. 130. p. 184-197.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Brosse N., Hage R.El, Sannigrahi P., Ragauskas A. // Cellul. 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