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Amine compound as well as preparation method and application thereof

An amine compound and bonding technology, applied in lubricating compositions, additives, petroleum industry, etc., can solve problems affecting the normal operation of aero-engines, severely corroding equipment, shortening the service life of equipment, etc.

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

Under the induction of high-temperature oxygen and metal catalysis, lubricating oil undergoes a series of chemical changes in a short period of time, causing engine oil to produce a large amount of sludge and other deposits, which adhere to metal accessories, severely corrode equipment, shorten the service life of equipment, and seriously affect the normal operation of aeroengines. work run

Method used

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  • Amine compound as well as preparation method and application thereof
  • Amine compound as well as preparation method and application thereof
  • Amine compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] The N-(p-tert-octylphenyl)-1-naphthylamine of 66.2g is joined in 135 n-decane solvents, sampling pending analysis and characterization, adding 7.2g paraformaldehyde in the mixed system; The reaction system was heated, stirred, and dissolved, and the mixed system was kept within the range of 80°C. Then, 18 g of reaction catalyst glacial acetic acid was added to the reaction system; the reaction was carried out at 120°C for 3 hours, and samples were taken, marked as intermediate product A1 for analysis and characterization, and then the reaction After the system was cooled to 50°C, 78.6 g of 4,4'-diisooctyl-diphenylamine was added to the reaction system, and then the reaction system was heated, and the mixed system was heated, stirred and dissolved in the presence of nitrogen to maintain the mixed system At 145°C, add 125g of di-tert-butyl peroxide to the reaction system, react at a constant temperature of 145°C for 4h, then distill under reduced pressure at 145°C and 0.02...

Embodiment 2

[0124] Add 100 g of N-(p-tert-octylphenyl)-1-naphthylamine to 250 n-decane solvent, add 10 g of paraformaldehyde to the mixed system; heat, stir and dissolve the mixed reaction system under nitrogen atmosphere , keep the mixed system within the range of 80°C, start to add 24g of reaction catalyst glacial acetic acid to the reaction system; carry out the reaction at 100°C for 4h, then cool the reaction system to 50°C in a nitrogen atmosphere, add 4, 108g of 4'-diisooctyl-diphenylamine, then heat the reaction system, heat, stir and dissolve the mixed system in the presence of nitrogen, keep the mixed system at 145°C, add 165g of di-tert-butyl peroxide to the reaction system, React at a constant temperature of 145°C for 4 hours, then distill under reduced pressure at 145°C and 0.02MPa for 60min, then raise the vacuum to ≤0.005MPa, and gradually raise the temperature to and maintain at 175°C for more than 60min under reduced pressure distillation, and complete the vacuum distillati...

Embodiment 3

[0126] Add 120g of N-(p-tert-octylphenyl)-1-naphthylamine into 300g of n-decane solvent, add 15g of paraformaldehyde to the mixed system; heat and stir the mixed reaction system under nitrogen atmosphere to dissolve , keep the mixed system within the range of 90°C, start to add 30g of reaction catalyst glacial acetic acid to the reaction system; carry out the reaction at 125°C for 4h, then cool the reaction system to 50°C in a nitrogen atmosphere, then add 4 , 200g of 4'-diisooctyl-diphenylamine, then heat the reaction system, heat, stir and dissolve the mixed system in the presence of nitrogen, keep the mixed system at 145°C, add 165g of di-tert-butyl peroxide to the reaction system , react at a constant temperature of 145°C for 4h, then distill under reduced pressure at 145°C and 0.02MPa for 60min, then increase the vacuum degree to ≤0.005MPa, and gradually raise the temperature to and maintain at 175°C for more than 80min under reduced pressure distillation, and the vacuum d...

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Abstract

The invention provides an amine compound, a preparation method and application thereof and a lubricating oil composition containing the amine compound. The structure of the amine compound is shown as a formula (I), the formula (I) is formed by mutually bonding m structural units shown as a formula (II) or mutually bonding m structural units with an R0'group, and the definition of each group is shown in the specification. The amine compound disclosed by the invention has excellent oxidation resistance and corrosion resistance, can be used as a component of a high-temperature antioxidant or a high-efficiency composite antioxidant, and can remarkably improve the high-temperature corrosion resistance, oxidation resistance and stability of lubricating oil, especially ester-based lubricating oil.

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. Under the induction of high-temperature oxygen and metal catalysis, lubricating oil undergoes a series of chemical changes in a short period of time, causing engine oil to produce a large amount of sludge and other deposits, which adhere to metal accessories, severely corrode equipment, shorten the service life of equipment, and seriously affect the normal operation of aeroengines. Work runs. Improving the high-temperature corrosion and oxidation stability of aero-engine oil is of great significance to improving the working efficiency and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M133/12
CPCC10M133/12C10M169/045C10M177/00C10M2215/065C10M2223/041C10M2215/223C10M2207/2835
Inventor 唐红金梁宇翔刘辉景一川王玉睿涵
Owner CHINA PETROLEUM & CHEM CORP
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