Methods have been studied, such as determining the water content in used motor oil in accordance with the requirements of GOST 26378.1-84 “Waste oil products. Water Determination Method” and ultrasonic treatment of used oil. Ultrasonic exposure to samples of used motor oil was provided by the use of an ultrasonic submersible type I100-6/1-1. The emulsion state of the water-in-oil system was ascertained under a microscope to determine if the emulsification conditions are sufficient for effective ultrasonic treatment, and to measure the water content of the used motor oil, which is necessary to achieve a state of effective bubble and micelle formation. Also, images of the water-in-oil emulsion were obtained using an optical microscope. The introduction of a surfactant into the oil-water system made it possible to achieve the formation of water droplets of predominantly the same size. Thinner and more uniformly dispersed bubbles were not observed. The emulsification process largely depends on the type and amount of surfactant used. Nonionic surfactants (ethoxylates, propoxylates) were considered as a component of such a functional purpose. For ultrasonic processing of samples of used motor oils, a batch unit was used.
Methods have been studied, such as determining the water content in used motor oil in accordance with the requirements of GOST 26378.1-84 “Waste oil products. Water Determination Method” and ultrasonic treatment of used oil. Ultrasonic exposure to samples of used motor oil was provided by the use of an ultrasonic submersible type I100-6/1-1. The emulsion state of the water-in-oil system was ascertained under a microscope to determine if the emulsification conditions are sufficient for effective ultrasonic treatment, and to measure the water content of the used motor oil, which is necessary to achieve a state of effective bubble and micelle formation. Also, images of the water-in-oil emulsion were obtained using an optical microscope. The introduction of a surfactant into the oil-water system made it possible to achieve the formation of water droplets of predominantly the same size. Thinner and more uniformly dispersed bubbles were not observed. The emulsification process largely depends on the type and amount of surfactant used. Nonionic surfactants (ethoxylates, propoxylates) were considered as a component of such a functional purpose. For ultrasonic processing of samples of used motor oils, a batch unit was used.
| № | Муаллифнинг исми | Лавозими | Ташкилот номи |
|---|---|---|---|
| 1 | Amirkulov N.S. | teacher | TSTU |
| 2 | Baxtiyorov J.S. | researcher | TSTU |
| 3 | Turabdjonov S.M. | rector | TSTU |
| 4 | Rakhimov B.B. | teacher | Academy of sciences Republic of Uzbekistan Institute of general and inorganic chemistry |
| № | Ҳавола номи |
|---|---|
| 1 | Sh.M. Mirziyoyev decree of January 28, 2022 PD-60 "on the development strategy of New Uzbekistan for 2022-2026”, 2022. |
| 2 | Sh.M. Mirziyoyev resolution of October 25, 2018 No. 3983 "on measures for the rapid development of the chemical industry in the Republic of Uzbekistan”, 2018. |
| 3 | Sh.M. Mirziyoyev resolution of April 3, 2019 No. 4265 "on measures to further reform the chemical industry and increase its investment attractiveness”, 2019. |
| 4 | GOST 26378.1-2015. Refined petroleum products. Water determination method - Introduced on 1984-01-01. “Standards Publishing House”, 1997. 5 |
| 5 | A.E. Kovaleva. Author's abstract: “Development of technology for complex cleaning of used motor oils”, 2019 |
| 6 | V.I. Yuzefovich. Organization of the collection of waste oils // “World of Oil Products”, 2013. 28. |
| 7 | Z.l. Finkelstein. Oil cleaning with hydrodynamic filters. “Collection of scientific papers MIISP”, 2011. 44 |
| 8 | R.l. Hunicke. Industrial applications of high power ultrasound for chemical reactions in adsorbtion. “Ultrasonics”, 1990. 291. |
| 9 | A.Kh. Mazhidov., K.A. Sharipov. “Recommendations for the organization of waste oils processing in the operating conditions of machines”, 2018. 14. |
| 10 | .K. Park., T.F. Yen. Ultrasonic degradation of polycyclic aromatic hydrocarbons. “Bioremediation of Recalcitrant Organics”, 1995. 31. |
| 11 | U.T. Iskanderov., K.A. Sharipov. Purification of used oils by the bar membrane method. “Rural economy of Uzbekistan”, 2017. 51. |
| 12 | Kh.R. Rakhimov. “Substantiation of technological parameters of glass fiber filters for dehydration of used automotive and tractor motor oils”, 2010. 133. |
| 13 | K.M. Sadeghi., M.A. Sadeghi., J.F. Kuo., L.K. Jang., J.R. Lin., T.F. Yen. “A new process for tar sand recovery”, 1992. 191 |
| 14 | B.N. Khamidov., B.B. Rakhimov. Gear lubricant properties and requirements. Materials of the republican scientific and practical conference with international participation of scientists on the topic “Actual problems of chemical technology”, 2021. 315 |
| 15 | Sh.A. Alikabulov., B.A. Shukurullaev., B.B. Rakhimov. Basic characteristics and manufacture of gear lubricating oils. Republican scientific practical conference “Problems of ecology and safety and their solutions”, 2021. 248. |