A kind of diesel oil lubricity improver, its preparation method and diesel oil composition
A technology of lubricity and improver, which is applied in the direction of cyanide reaction preparation, chemical instruments and methods, preparation of organic compounds, etc., and can solve the problem of large usage
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Embodiment 1
[0139]46.34 g of n-dodecylamine (purity of 95%, Shanghai Aladdin Biochemical Technology Co., Ltd.), methyl acrylate (purity of 98.5%, Shanghai Aladdin Biochemical Technology Co., Ltd.) 21.52 g and acrylic acid (purity of 99%) , Shanghai McLean Biochemical Technology Co., Ltd.) 18g mixed, that is, the molar ratio of n-dodecylamine, methyl acrylate and acrylic acid was 1:1:1, and the reaction was carried out in a three-necked flask with a volume of 250mL with stirring, and the reaction temperature was 80°C , the reaction pressure is normal pressure, the reaction time is 8h, and the yield is about 33%, as shown in reaction formula 1.
[0140]
[0141] After the reaction, it was purified by distillation under reduced pressure, and the purified product was subjected to hydrogen nuclear magnetic spectrum (NMR). 1 H) analysis, infrared analysis, related spectrum see figure 1 , 2 .
[0142] exist figure 1 Medium, 1750cm -1 Near the peak represents a carboxylic acid group; 1440...
Embodiment 2
[0145] 4-Dodecylaniline (the structural formula is as follows, the purity is 97%, Shanghai Aladdin Biochemical Technology Co., Ltd.) 66.86g, methyl acrylate (purity 98.5%, Shanghai Aladdin Biochemical Technology Co., Ltd.) 21.52g and Acrylic acid (purity of 99%, Shanghai McLean Biochemical Technology Co., Ltd.) was mixed with 24 g, that is, the molar ratio of 4-dodecylaniline, methyl acrylate and acrylic acid was 1:1:1.3. The reaction was carried out in a flask, the reaction temperature was 100° C., the reaction pressure was normal pressure, the reaction time was 8h, and the yield was about 35%. After the reaction is completed, it is purified by distillation under reduced pressure to obtain N-alkyl-N-ester fatty acid.
[0146]
Embodiment 3
[0148] Cyclohexylmethylamine (the structural formula is as follows, the purity is 97%, Shanghai Aladdin Biochemical Technology Co., Ltd.) 28.3 g, methyl acrylate (98.5% purity, Shanghai Aladdin Biochemical Technology Co., Ltd.) 21.52 g and acrylic acid (purity 99%, Shanghai McLean Biochemical Technology Co., Ltd.) 24g mixed, that is, the molar ratio of cyclohexylmethylamine, methyl acrylate and acrylic acid was 1:1:1.3, and the volume was 250mL in a three-necked flask with stirring. The reaction temperature is 100 ℃, the reaction pressure is normal pressure, the reaction time is 8h, and the yield is about 37%. After the reaction is completed, it is purified by distillation under reduced pressure to obtain N-alkyl-N-ester fatty acid.
[0149]
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