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Gear oil composition and preparation method thereof

A technology of gear oil and composition, applied in the field of lubricating oil, to achieve the effect of excellent thermal oxidation stability

Pending Publication Date: 2021-12-17
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The gear oil compositions of the prior art still have room for improvement in aspects such as oxidation stability, so as to adapt to the development trend of excellent comprehensive performance of gear oils

Method used

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  • Gear oil composition and preparation method thereof
  • Gear oil composition and preparation method thereof
  • Gear oil composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0061] Phosphonothioate compound, prepared according to the method of CN 111057107A Example 2

[0062] Nitrogen-containing derivatives of sulfuric acid, Jinzhou Kangtai Lubricating Oil Additive Company, industrial product T561, Beijing Xingpu Fine Chemical Technology Development Co., Ltd., industrial product

[0063] T106, Wuxi South Petroleum Additive Co., Ltd., industrial products

[0064] T706, Nanjing Jinling Chemical Synthetic Reagent Factory, industrial product

[0065]T901, Danyang Tianyu Petroleum Additive Factory, industrial products

[0066] T903, Danyang Tianyu Petroleum Additive Factory, industrial product T534, Beijing Xingpu Fine Chemical Technology Development Co., Ltd., industrial product

[0067] Lubricating base oil E-1 includes 25% of HVI 100SN mineral oil and 75% of HVI 120BS mineral oil, plus 1.0% of T803 and 0.6% of T602 in the total mass of the above mineral oil mixture.

[0068] Lubricating base oil E-2, including 45% HVI 350SN mineral oil and 55% GT...

Embodiment 1

[0073] Example 1 Meta-substituted C 3 ~ 15 Preparation of isomeric alkylphenols

[0074] Put 100g cardanol and 15g isomerization catalyst into a 200ml autoclave, close the autoclave, feed hydrogen to 6MPa, start stirring and heating. The reaction temperature was 320° C., and the reaction was carried out for 5 hours. After the reaction, the temperature was lowered to 60°C, and the yellow liquid reaction mixture was taken out, and distilled under reduced pressure at 100 Pa and 160°C for 1 hour, and the meta-substituted C with a purity of more than 98% was obtained after cooling. 3 ~C 15 isomeric alkylphenols. The reaction conversion rate was 95.6%. An example reaction equation is as follows:

[0075]

[0076] Example 2 Meta-substituted C 3 ~C 15 Preparation of isomeric alkylphenols

[0077] Put 100g cardanol and 3g isomerization catalyst into a 200ml autoclave, close the autoclave, feed hydrogen to 18MPa, start stirring and heating. The temperature was 420°C, and th...

Embodiment 3

[0078] Example 3 Preparation of 3-isomeric alkyl-6-tert-butylphenol

[0079] Dissolve 30 g of the product of Example 1 into 100 ml of cyclohexane, put it into a 250 ml three-neck reaction flask after dissolving, add 1.5 g of zinc chloride catalyst, start stirring and heating. Maintaining the reaction temperature at 50°C, 9.5 g of tert-butyl chloride was slowly added dropwise into the reaction flask, and the reaction was continued for 5 hours after the dropwise addition was completed. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. After filtering the reaction product, wash it with 5% KOH solution for alkali, then wash it with distilled water to neutrality, distill under reduced pressure at 1000Pa and 120°C for 1h, remove the solvent, water and unreacted raw materials, and obtain a brown-yellow liquid after cooling down . Product conversion was 81.3%. An example reaction equation is as follows:

[0080]

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Abstract

The invention provides a gear oil composition and a preparation method thereof. The gear oil composition comprises the following components: (a) a phenolic derivative; (b) a sulfur-containing extreme pressure anti-wear agent; (c) a phosphorus-containing anti-wear agent; (d) an anti-foaming agent; and (e) a major amount of a lubricating base oil. The structure of the phenol derivative is shown as a general formula (I), wherein the definition of each group is shown in the specification. The gear oil composition disclosed by the invention has excellent thermal oxidation stability, extreme pressure wear resistance, corrosion and rust resistance, foam resistance and low-temperature performance, and can meet the use requirements of vehicle gear oil and industrial gear oil with different viscosity grades and different specifications.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a gear oil composition. Background technique [0002] Vehicle gear oil used in manual transmissions and rear axles of passenger vehicles (including cars and trucks) is a large-volume and wide-ranging product, which requires excellent extreme pressure and anti-wear properties, thermal oxidation stability, Anti-corrosion, anti-rust and anti-foam properties usually need to add a variety of functional additives to meet the requirements of oil products. [0003] ZL 97112343.8 introduces a gear oil compounding agent whose corrosion inhibitor is composed of fatty acid ester amine salt and sulfonate. CN 100497562C introduces a general-purpose gear oil composition, which selects a phosphate-type multi-effect agent and 1-hydroxyethylidene-1,1-diphosphonate oily agent, and compound it with other component additives, General purpose gear oil composition formulated into different viscosity gr...

Claims

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Application Information

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IPC IPC(8): C10M129/10C10M169/04C10N40/04C10N30/06C10N30/08C10N30/10C10N30/12C10N30/18C10N30/02
CPCC10M129/10C10M169/048C10M2207/026C10M2205/0285C10M2203/1025C10M2209/084C10M2205/02C10M2219/022C10M2223/047C10M2219/046C10M2215/223C10M2229/041C10M2219/106C10M2215/064
Inventor 李勇陈晓伟鱼鲲
Owner CHINA PETROLEUM & CHEM CORP
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