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Contribution to the study of the aldol condensation process

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Abstract

The reaction course of aldol condensation has been studied. Diacetone alcohol is produced from acetone, using a basic ion exchanger as a catalyst. Experiments are carried out in a laboratory set-up (batch process). The analysis of reactants and products is made by the method of refractometry and gas chromatography, respectively. The reaction is performed at 293, 303, 313 and 323 K. Reaction course is determined with respect to temperature, experiment time, method of analysis and catalyst preparation (freshly prepared or regenerated). Reaction rate constants were calculated.

Abstract

Исследовали ход реакции альдольной конденсации. Используя основной ионообменник в качестве катализатора, из ацетона был получен диацетоновый спирт. Исследования проводились в лабораторных установках (непроточный процесс). Анализ исходных соединений и продуктов проведен с помощью рефрактометрнн и газовой хроматографии, соответственно. Реакцию проводили при температурах 293, 313, 303 и 323 К. Ход реакции исследовали в зависимости от температуры, времени протекания и природы катализатора (свежеприготовленный или регенерированный). Рассчитывали константы скорости. цеолиту HZSM-5 (без редокс активного компонента) была достигнута в 15 раз более высокая селективность к C2 альдегидам. Исходя из результатов ИК поверхностных комплексов, возникающих при взаимодействии метана с протон-донорными местами при 400°C, делали заключения о возможном механизме данной реакции.

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Authors and Affiliations

  1. Faculty of Technology, University of Zagreb, Savska cesta 16, 41000, Zagreb, Yugoslavia

    N. Sišul, J. Jelenčić & N. Wolf

  2. Faculty of Food Technology and Biotechnology, Zagreb

    N. Ciković

Authors
  1. N. Sišul
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  2. N. Ciković
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  3. J. Jelenčić
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  4. N. Wolf
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Sišul, N., Ciković, N., Jelenčić, J. et al. Contribution to the study of the aldol condensation process. React Kinet Catal Lett 40, 227–233 (1989). https://doi.org/10.1007/BF02073798

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  • DOI: https://doi.org/10.1007/BF02073798

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