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Amine compound, preparation method and application thereof, and antioxidant composition

A technology of amine compounds and ester compounds, which is applied in the field of amine compounds with high temperature, anti-oxidation and anti-corrosion properties, can solve the problems of difficult separation and purification, easy precipitation, and unfavorable performance of oil products.

Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] There are patents and literatures that introduce the preparation method of benzotriazole derivatives. The method or reaction conditions are strictly controlled, or separation and purification are difficult, and the product yield is low.
[0007] The product produced by the original process is a light yellow flocculent solid. This product has certain oil solubility, anti-wear, anti-oxidation, anti-corrosion, anti-rust and other properties. The oil is turbid, and it will settle down after long-term storage, which is not good for the performance of the oil under low temperature conditions.

Method used

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  • Amine compound, preparation method and application thereof, and antioxidant composition
  • Amine compound, preparation method and application thereof, and antioxidant composition
  • Amine compound, preparation method and application thereof, and antioxidant composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0160] Add 78g of 4,4'-diisooctyl-diphenylamine to 78g of trimethylolpropane saturated fatty acid ester, and its kinematic viscosity at 100°C=3.8mm 2 / s, the mixed system is heated, stirred and dissolved under a nitrogen environment, and the mixed system is maintained at 145°C, and 56g of initiator di-tert-butyl peroxide is added to the reaction system; the reaction is carried out at 145°C for 4h, and the mixed reaction system is Under reduced pressure distillation at 160°C and vacuum degree <500Pa for 180mins, 152g of reaction product A1 was obtained;

[0161] Add 26g of the reaction raw material 5-methylbenzotriazole to 152g of the reaction product A1, heat and dissolve to form a mixed solution, add 9g of paraformaldehyde condensing agent to the mixed solution, and add 16g of glacial acetic acid to the reaction system at a temperature of 100°C , reacted for 6 hours, carried out sufficient vacuum distillation for 120mins on the mixed reaction system at 110°C and vacuum degree...

Embodiment 2

[0166] Add 155g raw material 4,4'-diisooctyl-diphenylamine to 150g 100°C kinematic viscosity=5.02mm 2 / s mixed polyol saturated ester (wherein the mass ratio of trimethylolpropane ester to dipentaerythritol ester is 3:1), the mixed system is heated, stirred and dissolved under nitrogen atmosphere, and the mixed system is maintained at 140°C. Add 44g of reaction initiator di-tert-butyl peroxide to the reaction system; carry out the reaction at 140°C for 3h, carry out sufficient vacuum distillation on the mixed reaction system at 160°C and vacuum degree <500Pa for 180mins to obtain 310g of reaction product A2 ;

[0167] Put 50g of the reaction raw material 5-methylbenzotriazole into 310g of the reaction product A2, heat and dissolve to form a mixed solution, add 9g of paraformaldehyde condensing agent to the mixed solution, and add 16g of glacial acetic acid to the reaction system at a temperature of 100°C , reacted for 6 hours, carried out sufficient vacuum distillation on the...

Embodiment 3

[0169] Add 80g raw material 4,4'-diisooctyl-diphenylamine to 80g 100℃ kinematic viscosity=7.5mm 2 In the dipentaerythritol ester of / s, heat, stir and dissolve the mixed system under nitrogen atmosphere, maintain the mixed system at 140°C, add 80g of reaction initiator di-tert-butyl peroxide to the reaction system; carry out the reaction at 140°C for 3h, The mixed reaction system was subjected to sufficient vacuum distillation for 180mins at 160°C and vacuum degree <500Pa to obtain 156g of reaction product A3;

[0170] Add 85g of the reaction raw material 5-methylbenzotriazole to 156g of the reaction product A3, heat and dissolve to form a mixed solution, add 9g of paraformaldehyde condensing agent to the mixed solution, and add 32g of glacial acetic acid to the reaction system at a temperature of 100°C , reacted for 6h, and carried out sufficient vacuum distillation for 120mins on the mixed reaction system at 110°C and vacuum degree <500Pa to obtain 26g of transparent bright ...

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Abstract

The invention provides an amine compound as well as a preparation method and application thereof. The structure of the amine compound is shown as a formula (I), wherein at least one of LI, LII or LIII in the formula (I) is a group shown as a formula (III); wherein the definition of each group is shown in the specification. The amine compound provided by the invention has excellent oxidation and corrosion resistance, and can be used as a high-temperature antioxidant.

Description

technical field [0001] The invention relates to an amine compound, in particular to an amine compound which can be used in aviation synthetic ester lubricating oil and has high-temperature anti-oxidation and anti-corrosion properties. Background technique [0002] The high-temperature corrosion and oxidation stability of aero-engine lubricating oils are important manifestations of high-temperature oxidation resistance of aero-engine oils. Lubricating oil undergoes a series of chemical changes under high-temperature oxygen induction and metal catalysis, resulting in a large amount of sludge and other deposits in engine oil, which seriously affects the normal operation of aero-engines. Improving the high-temperature corrosion and oxidation stability of aero-engine oil is of great significance to improving the working efficiency and service life of lubrication system equipment. [0003] The high-temperature corrosion and oxidation stability of aircraft engine oils are closely ...

Claims

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Application Information

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IPC IPC(8): C07D249/18C10M133/44C10N30/10C10N30/12C10N30/02
CPCC07D249/18C10M133/44C10M2215/223
Inventor 唐红金梁宇翔陈晓伟胡海豹史军
Owner CHINA PETROLEUM & CHEM CORP
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