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Long-chain alkyl imidazole phosphate ionic liquid, preparation method and application thereof

A technology of long-chain alkylimidazole phosphate and diisooctyl imidazole phosphate, which is applied in the field of long-chain alkylimidazole phosphate ionic liquid and its preparation and application, and can solve catalyst residue, product performance impact, side reactions, etc. problems, to achieve the effect of improving tribological properties, reducing costs, and excellent anti-friction and anti-wear effects

Active Publication Date: 2016-01-20
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in summary, the ionic liquid catalyst needs to be separated after the esterification reaction, and there are many side reactions, and there will be catalyst residues, which will affect the performance of the product.

Method used

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  • Long-chain alkyl imidazole phosphate ionic liquid, preparation method and application thereof
  • Long-chain alkyl imidazole phosphate ionic liquid, preparation method and application thereof
  • Long-chain alkyl imidazole phosphate ionic liquid, preparation method and application thereof

Examples

Experimental program
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Effect test

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 o C 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 60o 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] wi...

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Abstract

The invention discloses a long-chain alkyl imidazole phosphate ionic liquid, i.e. 1-tetradecyl-3-(2-ethylhexyl)-imidazole diisooctyl phosphate. The invention also discloses a preparation method and application of the ionic liquid. The ionic liquid involved in the invention has certain catalytic activity, and is also soluble in the reaction product trimethylolpropane oleate, so that catalyst separation is omitted after esterification reaction, and the industrial production cost is greatly reduced. More importantly, the ionic liquid soluble in trimethylolpropane trioleate has excellent friction reduction and antiwear effects, and can significantly improve the tribological properties of base oil.

Description

technical field [0001] The invention relates to a long-chain alkylimidazole phosphate ionic liquid and a preparation method and application thereof. Background technique [0002] With the development of the machinery industry and the reduction of exploitable crude oil, many machinery have more and more stringent requirements for lubricants. Under some continuous high temperature and low temperature conditions, traditional mineral oil-based lubricants can no longer meet the needs of development. . Ester synthetic lubricating oil has excellent viscosity-temperature properties, good thermo-oxidative stability, lubricity and biodegradability, which can better meet the current industrial development requirements for new lubricating materials. Among them, neopentyl polyol esters (referred to as polyol esters) mainly include neopentyl glycol esters, trimethylolpropane esters and pentaerythritol esters, which have excellent high and low temperature performance and viscosity-tempera...

Claims

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Application Information

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IPC IPC(8): C07F9/11C07D233/58B01J31/02C07C67/08C07C69/58C10M137/04C10M169/04C10N30/06
Inventor 王晓波朱丽丽
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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