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2015/3
Effect of heat and ultrasonic treatment on effectiveness of polymethacrylate additives in industrial oils
Technical sciences

Authors: Vladimir G. SPIRKIN (b. 1937) graduated from the Military Rocket forces Academy named after Great Peter in 1959. D.Sc., Professor of „Chemistry and technology of lubricants and Chemmotology” department of the Gubkin Russia State Oil and Gas University. Author of more than 450 publications. E-mail: v.g.spirkin@mail.ru
Sergey V. IL’IN (b. 1989) graduated from the Gubkin Russia State Oil and Gas University in 2013. Master of chemistry and technology of lubricants and chemmotology department of the Gubkin Russia State Oil and Gas University. Deputy Director General in Ltd. „Standart-Neft”. E-mail: trydyrgung@gubkin.ru
Аleksey V. LEONTYEV (b. 1988) graduated from the Gubkin Russia State Oil and Gas University in 2013. Postgraduate of chemistry and technology of lubricants and chemmotology department of the Gubkin Russia State Oil and Gas University. Research Fellowin Ltd. „United Research and Development Center” (Ltd. „RN-CIR”). E-mail: trydyrgung@gubkin.ru
Igor G. TATUR (b. 1956) graduated from the Gubkin Moscow Institute of Oil Chemistry and Gas Industry in 1979. PhD, Assistant professor of „Chemistry and technology of lubricants and Chemmotology” department of the Gubkin Russia State Oil and Gas University. The author of 75 scientific publications, 25 patents and author certificates, 1 monography and 2 textbooks. E-mail: igtatur@yandex.ru.

Abstract: Industrial oils are the foundation for commercial oils used in industrial machinery, which operating in areas with ambient temperatures -40 °C and lower. Depressants, in particular polymethacrylates, are applied to improve the low temperature properties in lubricating oil. Purpose of this work is to study the possibility of modifying the structure of additives by means of preliminary heat and ultra-sound treatment of polymethacrylates for improvement of their depressant and viscosity properties. Ultrasound treatment was performed at frequency 22 kHz within 10 min, heat-treatment — at a temperature of 80±2 °C within 60 min. Evaluation of the results pretreatment of oil samples with additives after their oxidation was conducted by the method of SRT „Gazprom” 2-2.4-134-2007. Physico-chemical properties of the oils were determined by standard methods. It is shown that additives reduce the pour point of the base oil at 5-7 °C and a kinematic viscosity was increased on average by 10-15 % under optimum processing conditions. Reduction of the additives consumption with pretreatment for increasing the viscosity of the oil and reducing the pour point to the established norms has high practical significance

Index UDK: УДК 665.7.038.2

Keywords: industrial oil, polymethacrylate additive, thermal stability, heat treatment, ultrasonic treatment.

Bibliography:
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2. Anisimov I.G., Badyishtova K.M., Bnatov B.N. Topliva, smazochnyie materialyi, tehnicheskie zhidkosti. Assortiment i primenenie: Spravochnik рod red. V.M. Shkolnikova. Izd. 2-e pererab. i dop. M.: Izdatelskiy tsentr „Tehinform”, 1999, p. 596.
3. Safonov A.S., Ushakov A.I., Grishin V.V. Himmotologiya goryuche-smazochnyih materialov. NPIKTs, 2007, p. 488.
4. Spirkin V.G., Fuks I.G., Tatur I.R. i dr. Himmotologiya. Svojstva i primenenie topliv, smazochnyx materialov. Pod red. Spirkina V.G., Laxshi V.L. Uchebnoe posobie dlya studentov vuzov. V 2 ch. Ch. ΙΙ. M: RGU nefti i gaza imeni I.M. Gubkina, 2014, 271 р.