A kind of glutamic acid-based ionic liquid lubricant and its synthesis method

An ionic liquid and glutamic acid-based technology, applied in lubricating compositions, preparation of amino compounds from amines, chemical instruments and methods, etc., can solve problems such as difficult natural degradation and large pollution of waste oil products

Active Publication Date: 2022-04-08
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the technology is mature, there are disadvantages such as large pollution of waste oil products and difficulty in natural degradation

Method used

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  • A kind of glutamic acid-based ionic liquid lubricant and its synthesis method
  • A kind of glutamic acid-based ionic liquid lubricant and its synthesis method
  • A kind of glutamic acid-based ionic liquid lubricant and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Get DL-glutamic acid 140g (analytical pure, 98%, commercially available) and triethylamine 101g (analytical pure, 98%, commercially available), pour into the same Erlenmeyer flask, set the magnetic stirring speed to 60r / min, stirred at room temperature (25°C) for 24h.

[0034] ②. Take 26 g of anhydrous sodium sulfate (premium grade, 99.5%, commercially available), place it in a ceramic crucible, place it in a muffle furnace and heat at 400° C. for 3 hours.

[0035] ③. Pour the anhydrous sodium sulfate obtained in step ② into the product obtained in step ①, fully stir for 3 minutes, pour out the supernatant and filter.

[0036] ④. Place the product obtained in step ③ in a rotary evaporator, and rotate it for 4 hours at 60° C., and adjust the rotation speed to 45 r / min.

[0037] ⑤. Put the product obtained in step ④ into a vacuum drying oven, and dry it at 100° C. and -0.07 MPa for 12 hours to obtain the product.

[0038] The resulting product was a pale yellow visc...

Embodiment 2

[0046] ①. Take 135g of DL-glutamic acid (analytical pure, 98%, commercially available) and 100g of DL-glutamic acid (analytical pure, 98%, commercially available), pour them into the same Erlenmeyer flask, set magnetic stirring Speed ​​60r / min, stir at room temperature (25°C) for 26h.

[0047] ②. Take 25 g of anhydrous sodium sulfate (premium grade, 99.5%, commercially available), place it in a ceramic crucible, place it in a muffle furnace and heat at 400° C. for 3 hours.

[0048] ③. Pour the anhydrous sodium sulfate obtained in step ② into the product obtained in step ①, fully stir for 3 minutes, pour out the supernatant and filter.

[0049] ④. Place the product obtained in step ③ in a rotary evaporator, and rotate it at 62°C for 5 hours, and adjust the rotation speed to 50r / min.

[0050] ⑤. Put the product obtained in step ④ into a vacuum drying oven, and dry it at 110° C. and -0.08 MPa for 16 hours to obtain the product.

[0051] The product obtained was a slightly yello...

Embodiment 3

[0059] Others are the same as embodiment 1, the difference is;

[0060] 1. Get DL-glutamic acid 140g (analytical pure, 98%, commercially available) and triethylamine 102g (analytical pure, 98%, commercially available), pour in the same Erlenmeyer flask, set magnetic stirring speed 60r / min, stirred at 35°C for 32h.

[0061] ②. Take 20 g of anhydrous sodium sulfate (premium grade, 99.5%, commercially available), place it in a ceramic crucible, place it in a muffle furnace and heat at 360° C. for 4 hours.

[0062] ③. Pour the anhydrous sodium sulfate obtained in step ② into the product obtained in step ①, fully stir for 5 minutes, pour out the supernatant and filter.

[0063] ④. Place the product obtained in step ③ in a rotary evaporator, and rotate it at 65°C for 3 hours, and adjust the rotation speed to 45r / min.

[0064] ⑤. Put the product obtained in step ④ into a vacuum drying oven, and dry it at 120° C. and -0.06 MPa for 24 hours to obtain the product.

[0065] The resul...

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Abstract

The invention relates to a synthetic glutamic acid-based ionic liquid lubricant and a preparation method thereof. The steps include: neutralizing a certain amount of glutamic acid and triethylamine, and then removing the water produced by neutralization in the reaction system to obtain the product. The beneficial effects of the invention are: the invention can easily and quickly synthesize a high-efficiency, low-viscosity organic lubricant with few by-products and no harm to the environment.

Description

technical field [0001] The invention relates to a method for making lubricant by using amino acid and organic base, in particular to a method for synthesizing lubricant by using glutamic acid and triethylamine. Background technique [0002] As a class of potential high-performance lubricants, ionic liquids have attracted extensive attention from researchers all over the world since their discovery. A large number of studies have shown that ionic liquids can be applied to the lubrication of various materials and have excellent tribological properties. However, with the deepening of research, ionic liquid lubricants have also been found to have some defects. The use of ionic liquids as lubricants must not only have effective anti-friction and anti-wear effects, but also have good chemical stability, non-volatility, and environmental friendliness. However, most of the ionic liquids reported in the literature at present, the anions are mostly SO 3- , the cations are mostly alk...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C229/24C07C227/18C07C211/05C07C209/68C10M133/06C10N30/06C10N30/08
CPCC07C229/24C07C227/18C07C211/05C07C209/68C10M133/06C10M2215/04C10N2030/06C10N2030/08C10N2030/56
Inventor 刘青
Owner QILU UNIV OF TECH
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