Lubricating oil composite stabilizer and stable hydrogenation lubricating oil composition

A composite stabilizer and lubricating oil technology, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of difficult operation, increased investment, high cost, etc., and achieve the goals of prolonging the service life, reducing the change of chromaticity, and reducing the total consumption Effect

Active Publication Date: 2006-01-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former method will not only further increase investment, but also be difficult to operate and expensive

Method used

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  • Lubricating oil composite stabilizer and stable hydrogenation lubricating oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0031] Embodiment 3 composite stabilizer-1

[0032] In a 100ml beaker, add 8.5g of zinc dibutyl dithiophosphate, 7.0g of octyl / butyl alkylated diphenylamine, and 8.5g of isooctyl 3,5-di-tert-butyl-4-hydroxyphenyl acrylate , 2-(2'-hydroxy-3',5'-di-tert-butyl)benzotriazole 15.5g, bis(2,2,6,6-tetramethylpiperidinyl) sebacate 15.5g 1. Put 6.0g of trinonylphenyl phosphite on the heater to heat, stir and mix with a glass rod, control the temperature at 80±5°C, keep for 30min., make the material uniform, and obtain a transparent light yellow liquid.

Embodiment 4

[0033] Embodiment 4 composite stabilizer-2

[0034] In a 100ml beaker, add 2,6-di-tert-butyl-p-cresol 9.0g, 3,5-di-tert-butyl-4-hydroxyphenylisooctyl acrylate 12.0g, 2-(2'-hydroxy-3 ', 5'-di-tert-butyl) benzotriazole 21.3g, ethyl bis(2,2,6,6-tetramethylpiperazinone) 5.8g, N-triacetic acid (2,2,6, 7.7g of 6-tetramethyl-4-piperidinyl) ester and 4.2g of trinonylphenyl phosphite were heated on a heater, stirred and mixed with a glass rod, and the temperature was controlled at 80±5°C for 30min. Make the material uniform to obtain a transparent light yellow liquid.

Embodiment 5

[0035] Embodiment 5 composite stabilizer-3

[0036] In a 100ml beaker, add 6.0g of octyl / butyl alkylated diphenylamine, 6.0g of zinc diisooctyl dithiophosphate, 6.8g of 2,6-di-tert-butyl p-cresol, 2-(2' -Hydroxy-3',5'-di-tert-butyl)benzotriazole 15.0g, 2-hydroxy-4-n-octyloxy-benzophenone 9.4g, bis(1,2,2,6,6 - Pentamethyl-4-piperidinyl) sebacate 12.2g, triphenyl phosphite 5.4g, heat on a heater, stir and mix with a glass rod, control the temperature at 60±5°C, and keep it for 30min. Make the material uniform to obtain a transparent light yellow liquid.

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Abstract

The composite lubricating oil stabilizer includes the following components: ultraviolet ray absorbent and light stabilizer of hindered amine in the weight ratio of 1-5 and total content inside the composite lubricating oil stabilizer of 40-80 wt%; antioxidant selected from the shielding phenol, aromatic amine, phenolic ester, metal phosphate-sulfate and carbamate sulfide in 15-45 wt%; and phenyl phosphite as chelating agent in 3-18 wt%. The composite lubricating oil stabilizer of the present invention may be added into the base oil of hydrogenated lubricating oil in the amount of 0.01-2.0 wt% to improve the light stability of the hydrogenated lubricating oil obviously.

Description

technical field [0001] The present invention relates to a composite stabilizer for improving the stability of hydrotreated lubricating base oil, and a hydrogenated lubricating oil composition. technical background [0002] Compared with the lubricating base oil produced by the "old three sets" process, the hydrotreated lubricating base oil has many outstanding advantages such as good color, low sulfur and nitrogen content, low volatility, and good sensitivity to additives. However, most hydrogenated oils have poor light stability. Under the irradiation of sunlight or ultraviolet light, discoloration, turbidity, and even precipitation will occur. The existence of partially hydrogenated polycyclic aromatic hydrocarbons in hydrogenated oil may be the main reason affecting its light stability. [0003] At present, there are two methods to solve the poor gloss stability of hydrotreated lubricating oil base, namely improving the process conditions and adding additives. The forme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M137/04
Inventor 李华李新华杨永璧
Owner CHINA PETROLEUM & CHEM CORP
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