High-temperature antioxidant and preparation method thereof, and applications of high-temperature antioxidant in gear oil

A high-temperature antioxidant and gear oil technology, applied in the field of lubricating oil, can solve problems such as poor gear shifting of synchronizers, oil seal wear and oil leakage, and carbon on the surface of gears, so as to improve anti-oxidation ability, reduce oil seal wear, and prolong The effect of the oil change interval

Active Publication Date: 2015-09-09
SHANDONG YUANGEN PETROLEUM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under harsh working conditions: 1. Ordinary GL-5 oil will produce sludge and carbon deposits under harsh working conditions, which will lead to oil seal wear and oil leakage
2. Ordinary GL-5 oil cannot provide the friction characteristics of the manual gearbox synchronizer, which will lead to poor shifting of the synchronizer and even tooth grinding
However, the existing gear oil can easily cause serious carbon on the surface of the gear at high temperature, which will lead to the failure of the seal

Method used

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  • High-temperature antioxidant and preparation method thereof, and applications of high-temperature antioxidant in gear oil
  • High-temperature antioxidant and preparation method thereof, and applications of high-temperature antioxidant in gear oil
  • High-temperature antioxidant and preparation method thereof, and applications of high-temperature antioxidant in gear oil

Examples

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Effect test

Embodiment 1

[0044] Example 1, this example provides a high-temperature antioxidant (2,2'-thiobis-p-tertylphenol alkenyl succinate copper) including the following specific steps:

[0045] In a 500mL four-neck flask equipped with a thermometer sleeve, a stirrer, a reflux condenser and a dropping funnel, add 0.45mol p-tetylphenol and 320mL n-hexane to form a suspension, stir and cool down to 0-15°C , drop 32.6g of sulfur dichloride into the reaction flask through the dropping funnel, drop it for about 1.50h, absorb the hydrogen chloride gas generated by the reaction with water, continue to stir at this temperature for 1h, filter out the precipitate, first use 60mL of n-hexane Washing, washing with water, and drying to obtain the white product 2,2'-thiobis-p-tetraoctylphenol.

[0046] Add about 0.25mol of alkenyl succinic acid phenol and 40mL of benzene into the container, mix and stir, heat to 80°C and protect with nitrogen, add 2,2,-thiobis-p-tetraoctylphenol benzene solution dropwise, Af...

Embodiment 2

[0048] Example 2, this example provides a high temperature antioxidant (2,2'-thiobis-p-tertylphenol alkenyl succinate copper) including the following specific steps:

[0049] In a 500mL four-neck flask equipped with a thermometer sleeve, a stirrer, a reflux condenser and a dropping funnel, add 0.40mol p-tertylphenol and 300mL n-hexane to form a suspension, stir and cool down to 0-15°C , drop 31g of sulfur dichloride into the reaction flask through the dropping funnel, drop it in about 1.50h, absorb the hydrogen chloride gas produced by the reaction with water, continue to stir at this temperature for 1h, filter out the precipitate, and wash it with 57mL of n-hexane , and then washed with water and dried to obtain the white product 2,2'-thiobis-tetraoctylphenol.

[0050] Add about 0.22mol of alkenyl succinic acid phenol and 35mL of benzene into the container, mix and stir, heat to 80°C and protect with nitrogen, add 2,2,-thiobis-p-tetraoctylphenol benzene solution dropwise, A...

Embodiment 3

[0052] Embodiment 3, this embodiment provides a high-temperature antioxidant (2,2'-thiobis-p-tertylphenol alkenyl succinate copper) including the following specific steps:

[0053] In a 500mL four-necked flask equipped with a thermometer sleeve, a stirrer, a reflux condenser and a dropping funnel, add 0.5mol p-tertylphenol and 340mL n-hexane to form a suspension, stir and cool down to 0-15°C , drop 34g of sulfur dichloride into the reaction bottle through the dropping funnel, drop it in about 1.50h, absorb the hydrogen chloride gas generated by the reaction with water, continue to stir at this temperature for 1h, filter out the precipitate, and wash it with 70mL of n-hexane , and then washed with water and dried to obtain the white product 2,2'-thiobis-tetraoctylphenol.

[0054] Add about 0.3mol of alkenyl succinic acid phenol and 50mL of benzene into the container, mix and stir, heat to 80°C and protect with nitrogen, add 2,2,-thiobis-p-tert-octylphenol benzene solution ...

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Abstract

The present invention belongs to the field of lubricating oils, and relates to antioxidants, particularly to a high-temperature antioxidant and a preparation method thereof, and applications of the high-temperature antioxidant in gear oil. The high-temperature antioxidant comprises p-tert-octylphenol, n-hexane, sulfur dichloride, alkenyl succinic acid phenol, benzene, thio bis-p-tert-octyl phenol benzene, and hydrated copper acetate. Compared with the high-temperature antioxidant, the preparation method and the applications thereof in the prior art, the high-temperature antioxidant, the preparation method and the applications thereof of the present invention have the following advantages and positive effects that the high-temperature antioxidant is provided and is added to the gear oil so as to improve excellent anti-oxidation capacity of the gear oil, effectively reduce the carbon deposition on the vehicle gear surface, reduce the oil seal wear, prolong the oil change period, and improve the economic benefits.

Description

technical field [0001] The invention belongs to the field of lubricating oil, and relates to an antioxidant, in particular to a high-temperature antioxidant, a preparation method thereof and an application thereof in gear oil. Background technique [0002] Vehicle gear oil is an important lubricating oil formulated mainly from petroleum lubricating oil base oil or synthetic lubricating oil, with the addition of extreme pressure antiwear agents and oily agents. Used in vehicle gear transmissions to prevent tooth surface wear, abrasion, sintering, etc., prolong its service life, and improve transmission power efficiency. Vehicle gear oil lubricating oil is generally composed of base oil and additives. Base oil is the main component of lubricating oil and determines the basic properties of lubricating oil. Additives can make up for and improve the performance of base oil and endow some new properties. It is an important part of lubricating oil. [0003] Antioxidants can signi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/08C10M169/04C10N30/10C10N40/04C10N30/06
Inventor 赵金伟袁俊洲宋来功乔良张慧敏刘珊珊
Owner SHANDONG YUANGEN PETROLEUM CHEM
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