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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 pub-id-type="doi">10.29235/1561-8331-2019-55-1-79-85</article-id><article-id custom-type="elpub" pub-id-type="custom">vestich-372</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>ХИМИЯ ВЫСОКОМОЛЕКУЛЯРНЫХ СОЕДИНЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>POLYMER CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Модификация лигнина фосфорно-карбамидной смесью и изучение его свойств</article-title><trans-title-group xml:lang="en"><trans-title>Modification of lignin with phosphoric-urea mixture and study of its properties</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>Лунева</surname><given-names>Н. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Luneva</surname><given-names>N. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лунева Нина Клавдиевна – кандидат химических наук, доцент, ведущий научный сотрудник.</p><p>ул. Сурганова, 9/1, 220072, Минск.</p></bio><bio xml:lang="en"><p>Nina K. Luneva – Ph. D. (Chemistry), Associate Professor, Leading Researcher.</p><p>9/1, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">luneva@igic.bas-net.by</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>Езовитова</surname><given-names>Т. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Ezovitova</surname><given-names>T. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Езовитова Татьяна Ильинична – младший научный сотрудник.</p><p>ул. Сурганова, 9/1, 220072, Минск.</p></bio><bio xml:lang="en"><p>Tatiana I. Ezovitоva  –  Junior  Researcher.</p><p>9/1, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">t.ezovitova@gmail.com</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>Shevchuk</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шевчук Вячеслав Владимирович – член-корреспондент, доктор химических наук, заведующий отделом минеральных удобрений.</p><p>ул. Сурганова, 9/1, 220072, Минск.</p></bio><bio xml:lang="en"><p>Viacheslav V. Shevchuk – Corresponding Member, D. Sc. (Chemistry), Head of the Department of Mineral Fertilizers.</p><p>9/1,  Surganova  Str., 220072, Minsk.</p></bio><email xlink:type="simple">shevchukslava@rambler.ru</email><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 Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of General and Inorganic Chemistry of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>13</day><month>03</month><year>2019</year></pub-date><volume>55</volume><issue>1</issue><fpage>79</fpage><lpage>85</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лунева Н.К., Езовитова Т.И., Шевчук В.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Лунева Н.К., Езовитова Т.И., Шевчук В.В.</copyright-holder><copyright-holder xml:lang="en">Luneva N.K., Ezovitova T.I., Shevchuk V.V.</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/372">https://vestichem.belnauka.by/jour/article/view/372</self-uri><abstract><p>Изучен процесс фосфорилирования лигнина в среде фосфорной кислоты и карбамида, получен продукт, содержащий 1,3–6,8 % фосфора, 0,3–2,3 % азота и имеющий ионообменную емкость от 0,7 до 2,8 мг-экв•г–1 по Nа+, до 1,8–2,3 мг-экв•г–1 по отношению к Ni2+ и 2,6–2,8 мг-экв•г–1 по UО22+. Продукт термического разложения фосфата лигнина при 500 °С активно сорбирует пары бензола (величина сорбции 0,42–0,52 см3•г–1) и имеет ионообменную емкость по Nа+ до 2,8 мг-экв•г–1.</p></abstract><trans-abstract xml:lang="en"><p>The process of lignin phosphorylation in a medium of phosphoric acid and urea has been studied. The product prepared contains 1.3– 6.8 % phosphorus, 0.3–2.3 % nitrogen and has an ion exchange capacity of 0.7 to 2.8 mg-ekv•g–1 of Na+, to 1.8–2.3 mg-ekv•g–1 with respect to Ni2+ and 2.6 –2.8 mg-ekv•g–1 to UО22+. The product of thermal decomposition of lignin phosphate at 500 °C actively absorbs benzene vapor (sorption value of 0.42–0.52 sm3•g–1) and has a Na+ ion exchange capacity of 2.8 mg-ekv•g–1.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>лигнин</kwd><kwd>фосфорная кислота</kwd><kwd>потенциометрическое титрование</kwd><kwd>ионообменная емкость</kwd><kwd>активность по бензолу</kwd><kwd>сорбция Ni2+ и UО22+</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lignin</kwd><kwd>phosphoric acid</kwd><kwd>potentiometric titration</kwd><kwd>ion exchange capacity</kwd><kwd>activity of benzene</kwd><kwd>sorption of Ni2+ and UО22+</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">Лунева, Н. К. Фосфорилирование целлюлозы смесью ортофосфорной кислоты и полифосфата аммония в среде карбамида / Н. К. Лунева, Т. И. 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