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AZ9RBAYCAN KIMYA JURNALI № 1 2018
547.447.3; 542.951.1
THE RESEARCH OF CONSERVATIVE LIQUIDS BASED ON OXIDIZED LIQUID RUBBER AND THE SALTS OF THE NATURAL PETROLEUM ACIDS
V.M.Abbasov, Y.J.Aghazada, S.E.Abdullayev, E.K.Hasanov, G.M.Kuliyeva
Yu.Mamedaliyev Institute of Petrochemical Processes, NAS of Azerbaijan
yeqana.aqazade@mail.ru Received 25.01.2017
In this proceeding, the compositions of the T-30 turbine oil with oxidized liquid rubber, Ni, Co, Zn, Mg and Ba salts of the natural petroleum acids (NPA) boiling in the range 310-3600C and nitro compounds which are produced on the basis of C14H28 a-olefins have been investigated in different ratio and contents as conservative liquids. The physical and chemical properties of the produced compositions have been studied and their contents have been proved by IR spectroscopy method. It has been revealed that, the conservative liquid which is produced by the composition of the synthesized inhibitor and nitro compound in the presence of oxidized liquid rubber has a great protection against corrosion than their individual usages, meets the requirements and has a great practical importance.
Keywords: conservative liquids, corrosion, inhibitor, natural petroleum acids (NPA), oxidized liquid rubber, nitro compound, "corrosionbox".
As the technology is developing rapidly, corrosion protection of the metal appliances is one of the most actual problems for both global and local industries of modern world. Regardless of their operation conditions, metal constructions show thermodynamically unstable state as they react with the aggressive part of the environment and corrode [1, 2]. Besides its economic problems, corrosion process also changes the ecological factors of our planet. That is why, preventing corrosion is one of the most actual issues for the world scientists. Conservative liquids are widely used in order to build up a corrosion protection system for metal containing complex technological appliances [3, 4]. The widespread investigation of the inhibitors in the conservative liquids is based on its economic efficiency and simple structure of application technology [5, 6]. As a result of its chemisorption ability, inhibitor in the conservative liquid decreases the dissolution by pacifying the processes on the surface, provides a protective coating by creating a complex in the sphere of influence and prevents the corrosion of metal. In recent years, the application of the composition based reagents as corrosion inhibitors are actual [7-9].
In the given proceeding, the solution of the composition of inhibitor that is obtained by complex of the Ni, Co, Zn, Mg and Ba metal salts of the natural petroleum acids boiling in the
АЗЕРБАЙДЖАНСКИЙ ХИМИЧЕСКИЙ ЖУРНАЛ № 1 2018
range 310-3600C with nitro compounds and oxidized liquid rubber in T-30 oil has been applied as a corrosion protector. The compounds those have inhibitor properties in the prepared conservative liquids mainly consist of 3 components: metal salts of natural petroleum acid, aliphatic based nitro compounds and oxidized liquid rubber.
T-30 turbine oil has been used as a solvent. The metal (Co, Ni, Zn, Mg, Ba) salts of technical petroleum acids which are separated from Azerbaijan kerosene and diesel fractions and is soluble in organic solvents have been synthesized by the general methods. A composition with the liquid rubber has been manufactured by adding aliphatic based nitro compound to the obtained product. The amount of the active components was 1:1:1 (in grams). The nitro compound that has been used in the process was synthesized by treating Ci4H28 a-olefin with nitric acid in optimum conditions. Obtained composition has been tested as conservative liquid on steel plates by dissolving T-30 oil (7 and 10%). The liquid rubber which is used in the experiment has been manufactured on the basis of the stereo-regular structured 1,4-cz's-polybutadiene that has a wide application sphere in the industry [9, 10].
The experiment has been operated according to the current standards in the chamber called "corrosionbox" which is considered as a modern technological device (Table).
The results of the trial of conservative liquids
The solutions of the compositions in the T-30 oil The duration of corrosion protection, days
the amount of
the com- conden- atmos-
content ponents, % sation pheric
inhibi- solu- phase phase
tor tion
T-30 oil - - 15 38
Oxidized liquid rubber - 10 19 75
Ni salt of the NPA 50 10 95 197
Oxidized iquid rubber 50
Ni salt of the NPA 50 10 93 184
Nitro compound 50
Ni salt of the NPA 33.3
Nitro compound 33.3 7 267 311
Oxidized liquid rubber 33.4
Ni salt of the NPA 33.3
Nitro compound 33.3 10 291 350
Oxidized liquid rubber 33.4
Co salt of the NPA 50 10 108 219
Oxidized liquid rubber 50
Co salt of the NPA 50 10 93 201
Nitro compound 50
Co salt of the NPA 33.3
Nitro compound 33.3 7 301 384
Oxidized iquid rubber 33.4
Co salt of the NPA 33.3
Nitro compound 33.3 10 338 419
Oxidized liquid rubber 33.4
Zn salt of the NPA 50 10 63 169
Oxidized liquid rubber 50
Zn salt of the NPA 50 10 89 171
Nitro compound 50
Zn salt of the NPA 33.3
Nitro compound 33.3 7 241 302
Oxidized iquid rubber 33.4
Zn salt of the NPA 33.3
Nitro compound 33.3 10 263 326
Oxidized iquid rubber 33.4
Mg salt of the NPA 50 10 78 172
Oxidized iquid rubber 50
Mg salt of the NPA 50 10 93 185
Nitro compound 50
Mg salt of the NPA 33.3
Nitro compound 33.3 7 234 289
Oxidized iquid rubber 33.4
Mg salt of the NPA 33.3
Nitro compound 33.3 10 297 353
Oxidized iquid rubber 33.4
Ba salt of the NPA 50 10 82 201
Oxidized iquid rubber 50
Ba salt of the NPA 50 10 95 197
Nitro compound 50
Ba salt of the NPA 33.3
Nitro compound 33.3 7 243 307
Oxidized iquid rubber 33.4
Ba salt of the NPA 33.3
Nitro compound 33.3 10 289 346
Oxidized iquid rubber 33.4
The process has been carried out in two phases: condensation and atmospheric. Electronic appliances have been used in order to adjust the standard parameters for obtaining sustainable trials in the experiment chamber. For the condensation phase, these parameters are the temperature of the chamber and the duration of the trial, for the environmental phase, these are the temperature of the moisturizing agent and the chamber and the duration of the trial. The duration of the trial was in the interval of 1 minute-9999 hours and the temperature of the chamber was 20-500C for the condensation phase, whereas the temperature of the moisturizing agent was 20-800C and the remaining parameters were the same for the environmental phase.
As can be clearly seen from the Table, metal sheets were protected 19 and 75 days by using T-30 turbine oil and liquid rubber respectively, however, these pointers were higher when inhibitor was used. When 7% concentration of the inhibitor (Co salt of NPA+Nitro compound+ liquid rubber) was used, in the condensation phase, the protection of the metal sheets from the corrosion lasted 301 days, however, in environmental phase, it was 384 days. In 10 % concentration, it was 338 and 419 days, respectively. The comparative analysis of the results has been conducted in order to identify the influence of the liquid rubber on the composition content. Without liquid rubber, the content that is mentioned above (Co salt of NPA+Nitro compound) protected the material from corrosion for 93 and 201 days in the appropriate phases. As can be seen, it is very low in comparison to the initial results (338 and 419 days). At the same time, the corrosion protection efficiency of the conservative liquids those have been produced on the basis of the complex of the metal salts (Ni, Zn, Mg and Ba) of NPA with nitro compounds was high in comparison to current demand. As a result of the experiments, it has been revealed that, the inhibitor properties of the compositions of mineral oils with these kinds of mixture of complexes are more effective than the individual compositions with the same concentration those are prepared by adding salt and nitro compounds to the mineral oils separately. It can be explained
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V.M.ABBASOV et al.
by the superior ability of chemisorption on the metal surface and producing stronger coating for protection from corrosion of these complexes. The physical and chemical properties of the composition of inhibitor which is produced by the complex of synthesized salts with nitro com-
pounds and oxidized liquid rubber have been investigated and its content has been proved by IR spectroscopy method [11]. The conservative content of Co salt which shows the maximum efficiency gives the following wavelength during the spectral analysis (Figure)
Wave number, cm-1
IR spectroscopy of the composition with conservative content of Co salt.
The content of the composition has been tested by IR-Furye LUMOS (BRUKER) microscope in the range of 600-4000 cm-1 wavelength. The deformation (1376, 1457 cm-1) and valence (2921, 2950 cm-1) oscillations of structure groups (CH3 and CH2) which belong to NPA are observed in the spectrum of the approved sample. At the same time, the resonance signals for C-H bond and valence oscillations for C-NO2 group are seen at 723 cm-1 and 1558 cm-1 wave-length, respectively.
As can be seen from the Table which indicates the results of the experiments, the manufactured conservative liquids may be used in order to protect the metals from corrosion for industrial purposes. The components those have been used for producing conservative liquids are cost effective and environmentally - friendly, on the other hand, they have simple manufacturing technology and rich feedstock. T-30 oil, additives which are used as inhibitors and oxidized liquid rubber which are used in the reaction me-
dium are produced on the basis of the feedstock which have enough reserves. So, the comparative analysis of the results reveals that, the usage of the compositions of the metal salts of natural petroleum acids with nitro compounds as inhibitors have a practical importance for producing more effective conservative liquids.
References
1. Abbasov V.M. Korroziya. Baku: Elm, 2007. 355 p.
2. Rozenfeld I.L. Corrosion Inhibitors. New York: McGraw-Hill. 1981. 182 p.
3. Abbasov V.M., Abd El-Lateef H.M., Aliyeva L.I., Ismayilov I.T., Qasimov E.E. Efficient Complex Surfactants from the Type of Fatty Acids as Corrosion Inhibitors for Mild Steel C1018 in CO2 -Environments // Journal of the Korean Chemical Society. 2013. V. 57. No 1. P. 25-34.
4. Huang Y., Yang L.J., Xu Y.Z., Cao Y.Z. & Song S.D. Novel system for corrosion protection of reinforced steels in the underwater zone // Int. J. Corrosion Processes and Corrosion Control. 2016. V. 51. Issue 8. P. 566-572.
5. Mc Connel, R. Volatile. Corrosion Inhibitors offer effective Protection for Processing and Shipment
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of metal based Products // Metal Finish. 2008. V. 106. No 9. P. 23-27.
6. Abbasov V.M., Aghazadeh E.J., Abdullayev E.Sh. Conservative fluids and lubricants based on turbine oil, nitro, amido and paraffin wax // Advances in Chemistry. 2013. V. 14. No 2 (54). P. 155-160.
7. Aghazada Y.J. The research of the compositions those are prepared on the basis of the petroleum products as conservative liquids // Advances in Chemistry. 2015. V. 12. No 123. P. 3940-3943.
8. Li T., Yang Y., Gao K., Lu M. Mechanism of Protective Film Formation During CO2 Corrosion of X65 Pipeline Steel // J. of University of Science
and Technology Beijing, Mineral, Metallurgy, Material. 2008. V. 15. No 6. P. 702-706.
9. Aliyev V.S., Aliyev S.M., Azizov A.Q., Nasirov F.A., Mamedaliyev Q.A., Ismaylov T.A. // Sposob polucheniia 1,4-fc/'s-polibutadiena. A.s. SSSR. № 1066190. 1979.
10. Nasirov F.A. Issledovaniye i razrabotca prochessa polucheniya nizcomolekulyarnogo polibutadiyena v prisutstvii cataliticheskix sistem na osnove organichescix ditioproizvodnix nicelya (cobalta). Diss. ... cand. xim. nauk., Baku, IPP. AN ASSR. 1983. 202 p.
11. Tarasevich B.N. IK-spektry osnovnyh organicheskih soedineniy. Spravochnye materialy. Moskva. 2012.
OKSiDLO§Mi§ MAYE KAUCUK УЭ TOBii NEFT TUR§USUNUN DUZLARI OSASINDA ALINMI§ KONSERVASIYA MAYELORlNlN TODQlQi
V.M.Abbasov, Y.J.Agazada, S.E.Abdullayev, E.K.Hasanov, G.M.Quliyeva
Oksidla§mi§ maye kauguk, tabii neft tur§ularinin (TNT) 310-3600C temperaturda qaynayan fraksiyasinin Ni, Co, Zn, Mg va Ba duzlari va Ci4H28 a-olefinlari asasinda alinmi§ nitrobirlaijmalarin i§tiraki ila T-30 turbin yaginda muxtalif nisbat va tarkiblarda kompozisiyalari hazirlanaraq konservasiya mayelari kimi tadqiq olunmu§dur. Tadqiqatlar inhibitorun muxtalif qatiliginda "corrosionbox" adli tacruba kamerasinda kondensasiya va atraf muhit olmaqla iki fazada, polad lovhalar uzarinda sinaqdan kegirilmi§dir Muayyan olunmu§dur ki, sintez olunmu§ inhibitorun nitrobirla§ma ila oksidla§mi§ maye kauguk i§tirakinda kompozisiyasindan alinmi§ konservasiya mayesi onlarin fardi istifadasina nazaran korroziyadan daha yuksak muhafiza effekti gostarir, konservasiya mayelarina qoyulan talablari odayir va boyuk praktik ahamiyyat kasb edir.
Agar sozlzr: konservasiya mayehri, korroziya, inhibitor, tabii neft tur§usu (TNT), oksidb§mi§ maye kauguk, nitrobirh§m3, "corrosionbox".
ИЗУЧЕНИЕ КОМПОЗИЦИЙ, ИЗГОТОВЛЕННЫХ НА ОСНОВЕ ОКИСЛЕННОГО ЖИДКОГО КАУЧУКА И СОЛЕЙ ПРИРОДНЫХ НЕФТЯНЫХ КИСЛОТ В КАЧЕСТВЕ СРЕДСТВА ЗАЩИТЫ
ОТ КОРРОЗИИ
В.М.Аббасов, Е.Д.Агазаде, С.Э.Абдуллаев, Э.К.Гасанов, Г.М.Кулиева
При участии окисленного жидкого каучука и нитросоединений, полученных на основе a-олефинов Ci4H28, солей Ni, Co, Zn, Mg и Ba фракций природных нефтяных кислот (ПНК), кипящих в пределах 310-360°С, в турбинном масле Т-30 изготовлены и исследованы в качестве консервационных жидкостей композиции c различными соотношениями компонентов в их составах. Исследования проведены при различных концентрациях ингибитора в двух фазах, включая конденсацию в испытательной камере под названием "corrosionbox", а также в окружающей среде, и испытаны на стальных пластинках. Выявлено, что консервационная жидкость, полученная из композиций при участии синтезированных ингибиторов, нитросоединений и окисленного жидкого каучука, по сравнению с их индивидуальным использованием, оказывает больший антикоррозионный эффект, отвечает требованиям, предъявляемым к консервационным жидкостям, благодаря чему она имеет большое практическое значение.
Ключевые слова: консервационные жидкости, коррозия, ингибитор, природная нефтяная кислота (ПНК), жидкий каучук, нитросоединение, "cormsionbox".
