A long-chain alkyl imidazole phosphate ionic liquid and its preparation method and application
A technology of ionic liquid and hydroxymethyl propane oleate, which is applied in the field of long-chain alkyl imidazole phosphate ionic liquid and its preparation and application, can solve the problems of many side reactions, product performance impact, catalyst residue, etc., and achieve improvement Tribological properties, cost reduction, excellent anti-friction and anti-wear effects
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Embodiment 1
[0026] While stirring constantly, equimolar imidazole and sodium hydroxide were mixed at 110 o C reacts for 24h to generate imidazole sodium (NaIm); using tetrahydrofuran as solvent, imidazole sodium and equimolar tetradecane bromide at 65 o C was refluxed for 24 hours, the sodium bromide generated was filtered out, and the filtrate was rotary evaporated to obtain the crude product N-tetradecylimidazole. The crude product was dissolved in dichloromethane, and activated carbon and anhydrous magnesium sulfate were added successively to remove impurities. Filtration, most of the dichloromethane was removed by rotary evaporation, leaving a small amount at 60 o C was removed by vacuum drying to finally obtain the desired product N-tetradecylimidazole. Under a nitrogen atmosphere, the N-tetradecyl imidazole obtained above was added to equimolar triisooctyl phosphate, 150 o C reacted for 12 h under the protection of nitrogen to obtain a light yellow ionic liquid [TDEHIM][DEHP] wit...
Embodiment 2
[0028] While stirring constantly, equimolar imidazole and sodium hydroxide were mixed at 110 o C reacts for 24h to generate imidazole sodium (NaIm); using tetrahydrofuran as solvent, imidazole sodium and equimolar tetradecane bromide at 65 o C was refluxed for 14 hours, the generated sodium bromide was removed by filtration, and the filtrate was rotary evaporated to obtain the crude product N-tetradecylimidazole. The crude product was dissolved in dichloromethane, and activated carbon and anhydrous magnesium sulfate were added successively to remove impurities. Filtration, most of the dichloromethane was removed by rotary evaporation, leaving a small amount at 60 o C was removed by vacuum drying to finally obtain the desired product N-tetradecylimidazole. Under a nitrogen atmosphere, the N-tetradecyl imidazole obtained above was added to equimolar triisooctyl phosphate, 150 o C reacted for 12 h under the protection of nitrogen to obtain light yellow ionic liquid N-tetradecy...
Embodiment 3
[0030] While stirring constantly, equimolar imidazole and sodium hydroxide were mixed at 110 o C reacts for 24h to generate imidazole sodium (NaIm); using tetrahydrofuran as solvent, imidazole sodium and equimolar tetradecane bromide at 65 oC was refluxed for 18 hours, and the sodium bromide generated was filtered out, and the filtrate was rotary evaporated to obtain the crude product N-tetradecylimidazole. The crude product was dissolved in dichloromethane, and activated carbon and anhydrous magnesium sulfate were added successively to remove impurities. Filtration, most of the dichloromethane was removed by rotary evaporation, leaving a small amount at 60 o C was removed by vacuum drying to finally obtain the desired product N-tetradecylimidazole. Under a nitrogen atmosphere, the N-tetradecyl imidazole obtained above was added to equimolar diisooctyl phosphate, 150 o C reacted for 12 h under the protection of nitrogen to obtain a light yellow ionic liquid [TDEHIM][DEHP] w...
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