TECHNOLOGY FOR OBTAINING ALIPHATIC AMINES BASED ON LIQUID BY-PRODUCTS OF POLYMERIZATION PROCESSES

Authors

• Kamila Sabirbaevna Allanazarova, Tashkent State Technical University named after Islam KarimovFollow
• Ulugbek Komiljonovich Urinov, Tashkent State Technical University named after Islam KarimovFollow

Abstract

Polymerization processes generate considerable amounts of liquid secondary by-products, which are often underutilized despite their significant chemical potential. Addressing the need for sustainable resource use, this study aims to develop a technological method for converting these by-products into valuable aliphatic amines. The experimental approach involved the pre-treatment of liquid polymerization by-products through fractional distillation to isolate C3–C10 fractions, followed by catalytic amination using Raney nickel under controlled temperature (160°C) and pressure (12 atm) conditions. Analytical methods including gas chromatography-mass spectrometry (GC-MS) and Fourier-transform infrared spectroscopy (FTIR) were employed to characterize the reaction products. The results demonstrated the successful formation of primary and secondary aliphatic amines, such as n-propylamine, n-butylamine, and n-pentylamine, with an overall yield ranging between 68% and 72%. Catalyst stability was maintained over multiple reaction cycles, confirming the robustness of the process. The findings validate the feasibility of utilizing polymerization by-products as a sustainable feedstock for chemical synthesis. The developed technology provides a cost-effective and environmentally friendly alternative to conventional amine production, contributing to green chemistry and circular economy initiatives. Future work will focus on optimizing reaction parameters and scaling up the process for industrial application.

First Page

21

Last Page

26

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Recommended Citation

Allanazarova, Kamila Sabirbaevna and Urinov, Ulugbek Komiljonovich (2026) "TECHNOLOGY FOR OBTAINING ALIPHATIC AMINES BASED ON LIQUID BY-PRODUCTS OF POLYMERIZATION PROCESSES," Technical science and innovation: Vol. 2026: Iss. 2, Article 14.
Available at: https://btstu.researchcommons.org/journal/vol2026/iss2/14