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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.32362/2410-6593-2022-17-6-483-491</article-id><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-1909</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="en"><subject>CHEMISTRY AND TECHNOLOGY OF ORGANIC SUBSTANCES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ХИМИЯ И ТЕХНОЛОГИЯ ОРГАНИЧЕСКИХ ВЕЩЕСТВ</subject></subj-group></article-categories><title-group><article-title>Features of triamyl citrate synthesis</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности синтеза триамилцитрата</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3495-8412</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ширяева</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Shiryaeva</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ширяева Анна Денисовна - магистр, кафедра «Технология органического и нефтехимического синтеза».</p><p>443100, Самара, ул. Молодогвардейская, д. 244</p></bio><bio xml:lang="en"><p>Anna D. Shiryaeva - Master, Department of Technology of Organic and Petrochemical Synthesis.</p><p>244, Molodogvardeyskaya ul., Samara, 443100</p></bio><email xlink:type="simple">shiryaeva.100.annet@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9949-3276</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Моисеева</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Moiseeva</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Моисеева Светлана Вячеславовна - кандидат химических наук, доцент кафедры «Технология органического и нефтехимического синтеза», Scopus Author ID 57163952300.</p><p>443100, Самара, ул. Молодогвардейская, д. 244</p></bio><bio xml:lang="en"><p>Svetlana V. Moiseeva - Cand. Sci. (Chem.), Assistant Professor, Department of Technology of Organic and Petrochemical Synthesis, Scopus Author ID 57163952300.</p><p>244, Molodogvardeyskaya ul., Samara, 443100</p></bio><email xlink:type="simple">sveta_sushkova@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/0000-0003-2539-8986</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Леванова</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Levanova</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Леванова Светлана Васильевна - доктор химических наук, профессор, профессор кафедры «Технология органического и нефтехимического синтеза», Scopus Author ID 6701876379, Researcher ID D-6065-2014.</p><p>443100, Самара, ул. Молодогвардейская, д. 244</p></bio><bio xml:lang="en"><p>Svetlana V. Levanova - Dr. Sci. (Chem.), Professor, Department of Technology of Organic and Petrochemical Synthesis, Scopus Author ID 6701876379, ResearcherID D-6065-2014.</p><p>244, Molodogvardeyskaya ul., Samara, 443100</p></bio><email xlink:type="simple">kinterm@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/0000-0001-5421-8775</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глазко</surname><given-names>И. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Glazko</surname><given-names>I. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глазко Илья Леонидович - кандидат химических наук, доцент кафедры «Технология органического и нефтехимического синтеза», Scopus Author ID 6602656909, ResearcherID E-5107-2014.</p><p>443100, Самара, ул. Молодогвардейская, д. 244</p></bio><bio xml:lang="en"><p>Ilya L. Glazko - Cand. Sci. (Chem.), Assistant Professor, Department of Technology of Organic and Petrochemical Synthesis, Scopus Author ID 6602656909, ResearcherID E-5107-2014.</p><p>244, Molodogvardeyskaya ul., Samara, 443100</p></bio><email xlink:type="simple">gla3ko@yandeax.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Самарский государственный технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara State Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>24</day><month>01</month><year>2023</year></pub-date><volume>17</volume><issue>6</issue><fpage>483</fpage><lpage>491</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Shiryaeva A.D., Moiseeva S.V., Levanova S.V., Glazko I.L., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Ширяева А.Д., Моисеева С.В., Леванова С.В., Глазко И.Л.</copyright-holder><copyright-holder xml:lang="en">Shiryaeva A.D., Moiseeva S.V., Levanova S.V., Glazko I.L.</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://www.finechem-mirea.ru/jour/article/view/1909">https://www.finechem-mirea.ru/jour/article/view/1909</self-uri><abstract><sec><title>Objectives</title><p>Objectives. To find an effective way for obtaining triamyl citrate, an environmentally friendly, biodegradable citric acid ester used as a plasticizer for PVC-based polymer compositions.</p></sec><sec><title>Methods</title><p>Methods. The possibilities of heterogeneous catalysis were analyzed using the case study of three commercial samples of macroporous sulfocationites (Amberlyst™ 15, Amberlyst™ 70, and TULSION® 66). Homogeneous catalysis was studied using the example of orthophosphoric acid (H3PO4), while self-catalysis was investigated during esterification of citric acid with amyl alcohol (ROH). The syntheses were carried out under identical conditions: T = 110 °C, the ratio of CA:ROH = 1:5 (mol) amount of catalyst 1 wt % on the reaction mass in a thermostatically controlled reactor of ideal mixing with continuous distillation of the resulting water.</p></sec><sec><title>Results</title><p>Results. It was found that in all variants (even under self-catalysis conditions), the conversion of citric acid in 180 min reached 94–99%. Triamyl citrate was formed after 9 h with a yield of 90% only when using a homogeneous catalyst (H3PO4) and in the presence of a heterogeneous catalyst sample (Amberlyst ™ 15).</p></sec><sec><title>Conclusions</title><p>Conclusions. The revealed differences in the reactivity of the studied sulfocationites (Amberlyst™ 15, Amberlyst ™ 70, and TULSION® 66) confirm the well-known theoretical positions, according to which the kinetic pseudo-homogeneous model of the esterification process of hydroxy acids in excess of aliphatic alcohols is based on the law of acting masses and depends on the specific surface area of the catalyst, which for Amberlyst ™ 15 is of the greatest importance as compared to Amberlyst ™ 70 and TULSION® 66 (m2/g): 53:36:35, respectively.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цели</title><p>Цели. Поиск эффективного метода получения триамилцитрата – экологически чистого, биоразлагаемого сложного эфира лимонной кислоты, используемого в качестве пластификатора полимерных композиций на основе поливинилхлорида.</p></sec><sec><title>Методы</title><p>Методы. Выявлены возможности гетерогенного катализа на примере трех коммерческих образцов макропористых сульфокатионитов (Амберлист™ 15, Амберлист™ 70 и Тулсион® 66); гомогенного катализа на примере ортофосфорной кислоты (H3PO4) и самокатализа при этерификации лимонной кислоты (ЛК) амиловым спиртом (ROH). Синтезы проводили в одинаковых условиях: T = 110 °С отношение ЛК:ROH = 1:5 (мольн.) количество катализатора 1 мас. %. на реакционную массу в термостатированном реакторе идеального смешения с непрерывным отгоном образующейся воды.</p></sec><sec><title>Результаты</title><p>Результаты. Установлено, что во всех вариантах конверсия лимонной кислоты за 180 мин достигает 94–99%. Триамилцитрат с выходом 90% образуется через 9 ч только при использовании гомогенного катализатора (H3PO4) и в присутствии образца гетерогенного катализатора – Амберлист™ 15.</p></sec><sec><title>Выводы</title><p>Выводы. Выявленные различия в реакционной способности исследованных сульфокатионитов Амберлист™ 15, Амберлист™ 70 и Тулсион® 66 подтверждают известные теоретические положения, в соответствии с которыми кинетическая псевдогомогенная модель процесса этерификации гидроксикислот в избытке алифатических спиртов основывается на законе действующих масс и зависит от удельной поверхности катализатора, которая для Амберлист™ 15 имеет наибольшее значение по сравнению с Амберлист™ 70 и Тулсион® 66 (м2/г): 53:36:35 соответственно.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>лимонная кислота</kwd><kwd>амиловый спирт</kwd><kwd>этерификация</kwd><kwd>гетерогенные катализаторы</kwd><kwd>самокатализ</kwd></kwd-group><kwd-group xml:lang="en"><kwd>citric acid</kwd><kwd>amyl alcohol</kwd><kwd>esterification</kwd><kwd>heterogeneous catalysts</kwd><kwd>self-analysis</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">Никифорова Т.А., Новицкая И.Б., Минина Т.И. 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