MELAMINE-CONTAINING WASTE OF THIOUREA PRODUCTION, CLEANING, PROCESSING AND APPLICATION
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Based on waste from the production of thiourea, new products with ion-exchange properties were obtained. It has been established that when melamine-containing waste is mixed with urea-formaldehyde resin and heat treatment, amine derivatives of melamine, thiourea and dicyandiamide are formed, which were tested as ion exchangers. Using chemical methods of analysis, the structure and properties of the resulting products were studied. The kinetic characteristics of the obtained ion exchangers were studied using diffusion equations.
Анвар АКРАМОВ, Санобар КУРБАНБАЕВА, Хасан КАДИРОВ, & Бунёд ХОЛИКУЛОВ,. (2024). MELAMINE-CONTAINING WASTE OF THIOUREA PRODUCTION, CLEANING, PROCESSING AND APPLICATION. «ACTA NUUz», 3(3.1), 347–350. https://doi.org/10.69617/nuuz.v3i3.1.1831
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2. Schauer Jan, Kosmala Barbara. Ion-exchange membranes prepared by blending of sulfonated poly (2,6-dimethyl-1,4-phenylene oxide) with polyalkylanilines or polybenzimidazole. EUROMEMBRANE 2000, стр.128.
3. Vyas Punita V., Shah B. G., Trivedi G. S., Ray P., Adhikary S. K., Rangarajan R. Studies on heterogeneous cation-exchange membranes. React. and Funct. Polym. N 2, 2000, т.44, стр.101-110
4. Enjun Song, Yuhe Chen, Anbang Li, Yuxiang Sun, Rui Yang, Jing Wang, Hao Zhang, Jingyi Li, Dong Zhang. (2017) Preparation and adsorbing performance of calcium titanate with template method. Materials and Manufacturing Processes 32:12, pages 1428-1434. https://doi.org/10.1080/10426914.2016.1198017
5. Steven J. Duranceau and Javier Miguel Ochando-Pulido. Membranes 2021, 11(5), 358; https://doi.org/10.3390/ membranes11050358
6. Kim, D.-H., & Kang, M.-S. (2018). Development and Applications of Pore-filled Ion-exchange Membranes. Membrane Journal, 28(5), 307–319. https://doi.org/10.14579/membrane_journal.2018.28.5.307
7. Turobjonov S.M., Rakhimova L.S. Synthesis of phosphoric acid cation- exchange polymer of polycondensation type // Austrian Journal of Technical and Natural Sciences. – Vienna, 2016. - №1-2. – Р.111-114.
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