Diesel engine lubricating oil composition and preparation method thereof
A technology of lubricating oil composition and derivatives, which is applied in the direction of lubricating composition, chemical instruments and methods, compounds of group 5/15 elements of the periodic table, etc., and can solve the problems of failure to pass the copper sheet corrosion test, restrictions on phosphorus-containing additives, Problems such as complex process, to achieve the effect of improving anti-wear performance and extreme pressure performance, improving anti-wear performance and bearing capacity, and simple process
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Embodiment 1
[0183]
[0184] Under nitrogen protective atmosphere, in the 250ml four-necked flask equipped with stirrer, thermometer, condenser and water separator, add 23.01 g (86 mmol) octadecylamine and 20.27 g (250 mmol) formaldehyde solution, 12.51 g (105 mmol) Benzotriazole and 32.79 g (110 mmol) of n-butyl 2-ethylhexyl dithiophosphoric acid were rapidly stirred, and the temperature was raised to 90° C. to react for 5 h. After the completion of the reaction, the residual water was distilled off under reduced pressure, cooled to room temperature, settled for 24 hours, filtered to remove impurities, and separated by column chromatography to obtain the final product, which was marked as M-1.
[0185] The product characterization data are as follows:
[0186] 1 H NMR (300MHz, CDCl 3 ): δ0.88(9H), 1.03-1.72(40H), 2.12-3.93(10H), 4.20-4.54(2H), 5.18-6.17(4H), 7.18-8.08(4H);
[0187] C 38 H 69 N 4 O 2 PS 2 Calcd. C 64.37, H 9.81, N 7.90, O 4.51, P 4.37, S 9.04; found: C64.57, H 1...
Embodiment 2
[0189]
[0190] Under nitrogen protective atmosphere, in a 500ml four-necked flask equipped with a stirrer, thermometer, condenser and water separator, add 133.81 g (410 mmol) octadecyl propylene diamine and 25.8 g (860 mmol) paraformaldehyde, 55.89 g g (380 mmol) of 5-ethylbenzotriazole and 134.15 g (450 mmol) of n-butyl 1-methylheptyl dithiophosphoric acid, stirred rapidly, heated to 110° C. and reacted for 4 h. After the reaction is completed, the residual water is distilled off under reduced pressure, cooled to room temperature, settled for 24 hours, filtered to remove impurities, and separated by column chromatography to obtain the final product, which is marked as M-2.
[0191] The product characterization data are as follows:
[0192] 1 H NMR (300MHz, CDCl 3 ): δ0.88(6H), 1.03-1.93(57H), 2.43-2.74(8H), 3.46-4.10(4H), 4.24-4.63(2H), 5.31-6.20(2H), 7.19-7.82(3H) ;
[0193] C 43 H 82 N 5 O 2 PS 2 Calcd. C 64.86, H 10.38, N 8.80, O 4.02, P 3.89, S 8.05; found: C...
Embodiment 3
[0195]
[0196] Under a nitrogen protective atmosphere, in a 500ml four-necked flask equipped with a stirrer, a thermometer, a condenser and a water separator, add 45 grams of polyisobutylene amine (number average molecular weight is about 600) and 9 grams (300mmol) of paraformaldehyde. , 10.16 g (85 mmol) of benzotriazole and 150 mL of toluene were stirred rapidly, heated to 100 ° C, 24.4 g (100 mmol) of di-n-butyl dithiophosphoric acid were added dropwise, and the reaction was performed at a constant temperature for 5 h. After the completion of the reaction, the solvent and residual water were distilled off under reduced pressure, the impurities were removed by filtration, and the final product was separated by column chromatography, which was marked as M-3.
[0197] The product characterization data are as follows:
[0198] 1 H NMR (300MHz, CDCl 3 ): δ0.86(9H), 0.97-1.91(86H), 3.46-4.87(6H), 5.23-6.35(2H), 7.19-8.08(4H);
[0199] Determination of element content: C 69...
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