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Bifunctional ionic liquid and application thereof

An ionic liquid, dual-function technology, applied in the direction of base materials, additives, organic compounds/hydrides/coordination complex catalysts, etc. The effect of the simple method of synthesis

Pending Publication Date: 2021-03-02
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a bifunctional ionic liquid and its application. The bifunctional ionic liquid can be used not only as a catalyst but also as a lubricating oil additive without separation, and solves the problem of using an ionic liquid as a catalyst for the synthesis of esters in the prior art. Afterwards, the technical problem requiring the separation of the catalyst

Method used

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  • Bifunctional ionic liquid and application thereof
  • Bifunctional ionic liquid and application thereof
  • Bifunctional ionic liquid and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) Weigh 4.3824g of ionic liquid 1-butyl-3-methylimidazolium bromide, and simultaneously weigh 7.0932g of bis(2-ethylhexyl) hydrogen phosphate in a 250mL round bottom flask, then add 100ml of di Methyl chloride and 5ml of water were stirred evenly at room temperature and marked as a solution.

[0034] (2) configuration mass fraction is the sodium hydroxide aqueous solution of 30%, is marked as b solution, b solution is added dropwise in a solution, room temperature continues to stir for 2 hours after dropwise addition, after reaction finishes, pour into the separating funnel statically Place it for a period of time and wash the filtrate several times with distilled water, then use a rotary evaporator to remove water and dichloromethane, and finally dry it under vacuum at 70 degrees Celsius to obtain bifunctional ionic liquid Bi-IL4. For its nuclear magnetic resonance spectrum, please refer to the attached figure 1 And attached figure 2 .

Embodiment 2

[0036] (1) Weigh 4.9436g of ionic liquid 1-hexyl-3-methylimidazolium bromide, and simultaneously weigh 7.0932g of bis(2-ethylhexyl) hydrogen phosphate in a 250mL round bottom flask, then add 100ml of dichloro Methane and 5ml of water were stirred evenly at room temperature and marked as a solution.

[0037] (2) configuration mass fraction is the sodium hydroxide aqueous solution of 30%, is marked as b solution, b solution is added dropwise in a solution, room temperature continues to stir for 2 hours after dropwise addition, after reaction finishes, pour into the separating funnel statically Place it for a period of time and wash the filtrate repeatedly with distilled water for several times, then use a rotary evaporator to remove water and dichloromethane, and finally dry it under vacuum at 70 degrees Celsius to obtain bifunctional ionic liquid Bi-IL6. The nuclear magnetic resonance spectrum is shown in image 3 , 4.

Embodiment 3

[0039](1) Weigh 5.5046g of ionic liquid 1-octyl-3-methylimidazolium bromide, and simultaneously weigh 7.0932g of bis(2-ethylhexyl) hydrogen phosphate in a 250mL round bottom flask, then add 100ml of di Methyl chloride and 5ml of water were stirred evenly at room temperature and marked as a solution.

[0040] (2) configuration mass fraction is the sodium hydroxide aqueous solution of 30%, is marked as b solution, b solution is added dropwise in a solution, room temperature continues to stir for 2 hours after dropwise addition, after reaction finishes, pour into the separating funnel statically Place it for a period of time and wash the filtrate repeatedly with distilled water for several times, then use a rotary evaporator to remove water and dichloromethane, and finally dry it under vacuum at 70 degrees Celsius to obtain bifunctional ionic liquid Bi-IL8. The nuclear magnetic resonance spectrum is shown in Figure 5 , 6.

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Abstract

The invention provides a bifunctional ionic liquid and an application thereof, and relates to the technical field of lubricating oil, the bifunctional ionic liquid is obtained by reaction of ionic liquid 1-alkyl-3-methylimidazole bromine and bis (2-ethylhexyl) hydrogen phosphate, and the bifunctional ionic liquid is applied to synthetic ester lubricating oil as a catalyst and a lubricating oil additive. The bifunctional ionic liquid is applied to synthesis of ester lubricating oil as the catalyst, separation is not needed, and the performance of the ester lubricating oil can be improved.

Description

technical field [0001] The invention relates to the technical field of lubricating oil materials, in particular to a bifunctional ionic liquid and its application. Background technique [0002] Synthetic ester is a lubricant that was born and developed along with the demand for high-performance lubricating materials with the advancement of aero-engine technology. Because of its excellent high and low temperature performance, lubricating performance and other good comprehensive properties, it has always been the key to aviation lubricating oils Components play an indispensable role in the aviation field; one of the advantages of synthetic esters as lubricating materials is the adjustable molecular structure, and its various properties include thermal stability, oxidation stability, hydrolytic stability, viscosity grade And viscosity temperature performance, lubricity, solubility, biodegradability, etc. show great differences with the change of molecular composition and struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D233/58C07F9/11B01J31/02C07C67/08C07C69/33C07C69/30C10M105/38C10M129/74C10N30/06
CPCC07D233/58C07F9/11C07C67/08C10M105/38C10M129/74B01J31/0284C10M2207/283C10M2207/2835C07C69/33C07C69/30
Inventor 王亚南娄文静姜程苏怀刚孙一平赵启龙
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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