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DOI: Sulphation Of N-Alkyl Anilines With Oleum
Safarov Bahri Zhumaevich , Candidate Of Technical Sciences, Associate Professor; (Bukhara Engineering Technological Institute) Uzbekistan Mambetsheripova Azhagul Abdiganieva , Doctor Of Philosophy (PhD) Associate Professor (Karakalpak State University Named After Berdak) UzbekistanAbstract
In this article, we can conclude that oleum with a high content of sulfur dioxide should be used for sulfation to increase the content of practically valuable m-isomers in mixtures. However, oleum containing 33-54% free SO3 is practically unsuitable for sulfonation due to its high crystallization temperature. In addition, high resin content has been reported in oleum containing over 50% free SO3 when mixed with H-alkylanilines.
Keywords
N-Alkylanilines, Sulfonation, Sulfonation Mixtures, M-Isomers, Mercaptan
References
Studies of the sulfonation of H-alkylanilines and sulfates of H-alkylanilines with oleum of various concentrations showed that the isomeric composition of the resulting sulfonation mixtures changes depending on the acidity of the sulfonating agent and the basicity of the H-alkylaniline. This indicates the occurrence of the sulfonation reaction with both the protonated and the non-protonated form of H-alkylaniline in equilibrium with it, the proportion of which varies with the acidity of the medium.
The study of the kinetics of sulfonation of H-alkylaniline sulfates with oleums of various concentrations showed that the sulfonating particle in oleums can be HSO3 + or and H2S2O7 + ions. The transition state consists of a non-protonated or protonated H-alkylaniline molecule, a sulfuric anhydride molecule, a proton, and possibly a sulfuric acid molecule.
REFERENCES
Barakaev, N., Mirzaev, O., Toirov, B., & Alimov, A. (2021, April). Justification of the parameters of parts of a walnut cracking machine. In Journal of Physics: Conference Series (Vol. 1889, No. 2, p. 022061). IOP Publishing.
SadriddinFayzullaevich, F., Arashovich, M. B., Boboqulovich, T. B., & Anvarovich, A. A. (2020). Development of technologies for producing catalystfor destructive hydrogenization of asphalt-free oil of heavy sulfur oil. Journal of Critical Reviews, 7(14), 75-80.
Rashidovich, B. G., Abdurakhmanovich, A. S., & Anvarovich, A. A. (2020). Studying the possibility of using mechanical-chemical dispersion for increasing the salt-stability of clay drilling solutions. Journal of Critical Reviews, 7(14), 72-4.
Адизов, Б. З., Алимов, А. А., Хамдамов, У. М., & Усмонов, С. Ч. (2012). Эксперименты как моделирование лабораторной работы в учебном процессе. Молодой учёный, 4, 389.
Ризаев, Д. Б., & Хужжиев, М. Я. (2017). Очистка газовых выбросов. Вопросы науки и образования, (5 (6)).
Кобилов, А. Б. У., & Хужжиев, М. Я. (2017). Механизм поглощения H2S, CO2 и других сернистых компонентов водными растворами аминов. Вопросы науки и образования, (11 (12)).
Хужжиев, М. Я., & Ризокулов, М. Н. У. (2016). Очистка и осушка газов растворами гликолей. Наука и образование сегодня, (3 (4)).
Сафаров, Бахри Жумаевич, Жасур Алижон Угли Сафаров, and Икрам Бахтиярович Зинатдинов. "Гидроизомеризация гексена-1 в присутствии алюмосиликатных катализаторов, содержащих никель и сульфид никеля." Universum: технические науки 6-4 (87) (2021): 9-13.
Сафаров, Б. Ж., Хужакулов, К. Р., Ходжиев, А. Х., & Нормуродов, Б. Р. (2014). Физико-химические исследования структуры пигментной печатной краски на основе отечественных препаратов. Молодой ученый, (4), 256-259.
Сафаров, Б. Ж., Ашуров, О. О., Тошев, М. С., & Худойбердиев, С. А. (2019). НЕКОТОРЫЕ ОСОБЕННОСТИ ПРОМЫШЛЕННОГО ПИРОЛИЗА. Теория и практика современной науки, (3), 263-265.
Жасур, С., Бакиева, Ш. К., & Нуруллаева, З. В. (2016). Технологические схемы процессов депарафинизации. Наука и образование сегодня, (3 (4)).
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