Evaluation Study oflnhibition and regeneration characters for Substituted | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 19, Issue 1, April 2014, Pages 63-66 | ||
| Author | ||
| Mohammad Jamil Abd-Aghani | ||
| Abstract | ||
| Abstract An aniline derivative was extracted from crude oil received from Al- Dora refinery . The crude oil was dissolved in toluene (l:3) and extracted through a column containing activated cationic resin t)?e Amberllte (15), then eluted by absolute ethanol and identified by infra red spectroscopy. FT-IR spectroscopy for the lubricant oil was performed before employing in an internal combustion engine and 15 working hours daily for seven days after. Il was seen that the FT-IR ofthe oxidized oil contains a new peak in the region lE00- l7O0 cm-r, which is generated due to the oxidation process of the used oil which belongs to carbonyl group. The FTIR specter for the formulated crude oil with a specific concentration of the extracted substituted aniline after applying the same conditions of oxidation showed minimum peak intensity al l7l0 - 1770 cm r than that observed in FT-IR done in absence ofextraaed compound . The extracted sample was examined as antioxidant for lubricant oil stock 50 by manometric oxidation apparatus. The values ofinduction periods in presence of(0.20 and 0.30) mol/l ofthe sample at 393 K were: (766 sec. 1630 sec.), while it was (55 sec.) in their absence . The maximum rate ofoxidation for clean lubricant oil was (3.5 xl0-a) mol./l.sec. while they were: (3.0x104 and 2.0xl0a) mol/I. sec. after blending with extracted sample. These values were still not arrived the value of maximum rate ofoxidation ofthe clean oil. The same study was applied on the universal antioxidant inhibitor Unol (phenolic type) which his value of stochiom€tric factor for inhibition (f) is equal to (2) under the same conditions, the obtained induction periods were (150,290 sec.) respectively | ||
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