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Functionalized oil-soluble ionic liquid and preparing method and application thereof

An ionic liquid and oil-soluble technology, applied in chemical instruments and methods, carboxylate preparation, sulfonate preparation, etc., can solve the problems of high preparation cost, restriction of industrial application, poor compatibility of lubricating oil, etc., and achieve high load capacity ability, excellent solubility, excellent anti-friction and anti-wear properties

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

Although ionic liquids have better anti-friction and anti-wear properties compared with other synthetic lubricating oils, during the application research of ionic liquids, it was found that there are still some problems as lubricant additives, such as: high preparation cost, corrosion of metal substrates , Poor compatibility with commonly used lubricating oils and other issues greatly restrict its industrial application
After investigation, it is found that there is no report of functionalized ionic liquids with good corrosion resistance and oil solubility at the same time.

Method used

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  • Functionalized oil-soluble ionic liquid and preparing method and application thereof
  • Functionalized oil-soluble ionic liquid and preparing method and application thereof
  • Functionalized oil-soluble ionic liquid and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1 [P 888P [DOSS] Synthesis of Ionic Liquids

[0055]

[0056] Add 37.06 grams of n-trioctylphosphine and 26.0 grams of 3-bromopropyl diethyl phosphate into a 250 mL three-necked flask, and add 100 mL of acetonitrile as a solvent, and react at 70° C. for 8 hours under the protection of an inert gas. After the reaction, the solvent was removed by spinning to obtain 60 grams of bright yellow oily viscous liquid, which was denoted as P 888P Br, 88% yield. Add 49 g of P to a 250 mL round bottom flask 888P Br, 23g 2-sulfonic acid succinate bis (2-ethyl) hexyl sodium salt, and add absolute ethanol to dissolve completely, and the solution was fully stirred for 8 hours at 50°C. After the reaction was completed, 80 ml of dichloromethane was added to dissolve, washed with distilled water, dried with anhydrous sodium sulfate, and finally the solvent was evaporated under reduced pressure to obtain 52 g of light yellow transparent oily liquid with a yield of 90%. 1 HN...

Embodiment 2

[0057] Example 2 [P 888P [DEHPA] Synthesis of Ionic Liquids

[0058]

[0059] Add 37.06 grams of n-trioctylphosphine and 26.0 grams of 3-bromopropyl diethyl phosphate into a 250 mL three-necked flask, and add 100 mL of acetonitrile as a solvent, and react at 70° C. for 8 hours under the protection of an inert gas. After the reaction, the solvent was removed by spinning to obtain 60 grams of bright yellow oily viscous liquid, which was denoted as P 888P Br, 88% yield. Add 49 g of P to a 250 mL round bottom flask 888P Br, 8.61 grams of sodium di-isooctyl phosphate, and add an appropriate amount of absolute ethanol to dissolve completely, and the solution was fully stirred at 50 ° C for 8 hours. After the reaction was completed, 80 ml of dichloromethane was added to dissolve, washed with distilled water, dried with anhydrous sodium sulfate, and finally the solvent was distilled off under reduced pressure to obtain 51 g of light yellow transparent oily liquid with a yield of...

Embodiment 3

[0060] Example 3 [N 888P [SL] Synthesis of Ionic Liquids

[0061]

[0062] 37.06 grams of n-trioctylamine and 26.0 grams of 3-bromopropyl diethyl phosphate were added to a 250 mL three-necked flask, and 100 mL of acetonitrile was added as a solvent, and the reaction was carried out at 70° C. under the protection of an inert gas for 8 hours. After the reaction, the solvent was removed by spinning to obtain 60 grams of bright yellow oily viscous liquid, which was denoted as P 888P Br, 88% yield. Add 49 g of P to a 250 mL round bottom flask 888P Br, sodium laurate 22.2g, and add an appropriate amount of dehydrated alcohol to dissolve completely, and the solution was fully stirred for 8 hours at 50°C. After the reaction was completed, 80 ml of dichloromethane was added to dissolve, washed with distilled water, dried with anhydrous sodium sulfate, and finally the solvent was distilled off under reduced pressure to obtain 51 g of light yellow transparent oily liquid with a yie...

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Abstract

The invention discloses functionalized oil-soluble ionic liquid. The ionic liquid is phosphate functionalized quaternary phosphorus and quaternary ammonium oil-soluble ionic liquid. The positive ions of the ionic liquid are quaternary phosphorus or quaternary ammonium positive ions with phosphate functional groups and different alkyl chain lengths. The negative ions of the ionic liquid are EDHPA, DOSS, DDSSP and SL. The ionic liquid can effectively reduce the corrosion of base oil on metal, restrain the generation of carbon deposition and improve the lubricating performance of lubricating oil. The invention further discloses a preparing method and application of the ionic liquid.

Description

technical field [0001] The invention relates to a series of functionalized oil-soluble ionic liquids and their preparation methods and applications. Background technique [0002] As an important member of the lubrication system, lubricating grease plays a pivotal role in different service conditions. However, with the continuous development of modern aerospace and space technology, new requirements are put forward for the lubricating performance of lubricating grease. Traditional lubricating grease can no longer meet the requirements of lubricating and protecting lubricated parts under harsh conditions. Therefore, the design and synthesis of new and efficient lubricants has attracted more and more attention. As an important class of materials in the 21st century, ionic liquids have been widely used in many fields. The applicant reported for the first time in 2001 that this type of material with low volatility, non-combustibility, high thermal stability, low melting point a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/54C07F9/11C07F9/40C07C309/17C07C303/32C07C53/126C07C51/41C10M137/12C10M135/10C10M137/04C10M129/40C10N30/12C10N30/06
Inventor 周峰于强亮蔡美荣黄国威刘维民
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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