43-52 p.
The work is devoted to the method of obtaining isophorone in a microchannel. Numerical and experimental optimization of the process of obtaining isophorone in a microchannel has been carried out. Isophorone is an unsaturated cyclic ketone, widely used in industry as a solvent for nitrocellulose paints, as well as as an inter-mediate for the synthesis of other compounds. The synthesis was carried out in microchannels. Microchannels are channels with a diameter of less than 1 mm. Their main feature is the possibility of carrying out various types of reactions requiring high pressures and temperatures. Due to the small internal volume, all processes occurring in them are easily intensified, high accuracy and efficiency of the experiment can be achieved. Parameters such as reaction temperature and reagent consumption varied. A new approach to conducting the experiment was used, based on minimizing the control parameters used and combining them correctly. This approach requires high ac-curacy and reproducibility of the results, so the microchannels used in this work are the best choice for such tasks. A mathematical model of the reaction based on systems of equations of varying complexity has been developed. Three-dimensional and two-dimensional contour diagrams are constructed to visualize the mathematical model of the process. The best technological parameters of the process have been established.
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2. Jorge Quesada, Laura Faba, Eva Díaz, Simona Bennici, Aline Auroux, Salvador Ordóñez, Role of sur-face in-termediates in the deactivation of Mgsingle bonder mixed oxides in acetone self-condensation: A combined DRIFT and ex situ characterization approach. Journal of Catalysis. 2015. No. 329. P. 1 – 9. DOI: 10.1016/j.jcat.2015.04.029
3. Jun Mei, Zhirong Chen, Shenfeng Yuan, Jianyong Mao, Haoran Li, Hong Yin. Kinetics of Isophorone Syn-thesis via Self-Condensation of Supercritical Acetone. Chemical Engineering Technology. 2016. No. 39. P. 1867 0 1874. https://doi.org/10.1002/ceat.2016000806
4. Yan Liu, Wen Yan Luo, YMgAl-LDO Synthesis and its Catalytic Performance for Preparation of Iso-phorone by Condensation of Acetone. Current Micro-Nano Science and Technology. 2015. No. 1118. P. 265 – 269. https://doi.org/10.4028/www.scientific.net/AMR.1118.265
5. Daniela Lovric A., Jean Elena Pat. 2023040249 Japan, The production of Isophorine. 2023.
6. Thomas W Microreactors in Organic Chemistry and Catalysis. John Wiley & Sons Limited. 2011. P. 5.
7. Shishanov M.V., Kuk H.G., Dosov K.A., Yashunin D.V., Bolshakov I.A., Morozov N.V. Modeling of flow microreactors. Modern high-tech technologies. Regional application. 2023. No. 75 (3). P. 97 – 106.
8. Shishanov M.V., Kuk H.G., Dosov K.A., Yashunin D.V., Bolshakov I.A., Morozov N.V. Mixing in microflu-idics. Modern science-intensive technologies. Regional application. 2023. No. 4 (76). P. 103 – 109.
9. Chaoqun Y., Yuchao Z., Haiyun M. Two-phase flow and mass transfer in microchannels: A review from local mechanism to global models. Chemical Engineering Science. 2021. No. 229. P. 116 – 117. DOI: 10.1016/j.ces.2020.116017
10. Dey R., Buness C.M., Hokmabad B.V. et al. Oscillatory rheotaxis of artificial swimmers in micro-channels. Nat Commun. 2022. No. 13. P. 29 – 52. DOI: 10.1038/s41467-022-30611-1
Shishanov M.V., Kuk Kh.G., Tambura B., Zhou Yu. Optimization of a typical condensation process using the example of isophorone synthesis in a microchannel. Chemical Bulletin. 2024. 7 (2). P. 43 – 52. https://doi.org/10.58224/2619-0575-2024-7-2-43-52

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