Hydraulic oil composition and production method therefor

A technology of hydraulic oil composition and compound, which is applied in the direction of lubricating composition, petroleum industry, additives, etc., and can solve the problems of affecting the performance of mechanical equipment, insufficient attention to anti-rust performance, shortening the life of mechanical equipment, etc.

Active Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when these prior art compounds are used in hydraulic lubricants, there is still room for improvement in the high temperature oxidation resistance, anti-deposit formation ability and anti-wear performance of oil products
In addition, in addition...

Method used

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  • Hydraulic oil composition and production method therefor
  • Hydraulic oil composition and production method therefor
  • Hydraulic oil composition and production method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0243] In a 500ml four-neck flask equipped with a stirrer, thermometer, condenser and dropping funnel, add 58.79g (0.323mol) of 2-tert-butyl-6-mercaptophenol, 6.88g (0.048mol) of boron trifluoride Ethyl ether (catalyst for alkylation reaction), 100ml of n-hexane solvent and 161.61g (0.162mol) of polyisobutene (Mn=1000, manufactured by Jihua Group Fine Chemicals Co., Ltd.) were reacted at 80°C for 2h. After the reaction, the reaction mixture was washed once with 5% potassium hydroxide solution by mass fraction, and washed to neutrality with hot water to remove the catalyst, and then the solvent and unreacted phenol were distilled off under reduced pressure to obtain polyisobutylene mercaptophenol, hydroxyl The value was 53.49 mgKOH / g. For the determination of hydroxyl value, refer to the acetic anhydride method in GB / T7383-2007.

[0244] An example reaction is as follows:

[0245]

[0246] From the proton nuclear magnetic spectrum analysis of the polyisobutylene mercaptoph...

Embodiment 2

[0248]

[0249] Under a nitrogen protection atmosphere, in a 250ml four-necked flask equipped with a stirrer, a thermometer, a condenser and a dropping funnel, add 30.58 grams (156 mmol) of 2-mercapto-4-methyl-6-methylphenol, 9.29 grams ( 112mmol) formaldehyde, 32.38g (176mmol) N-phenyl-p-phenylenediamine and 100mL toluene, stirred rapidly, and reacted at 100°C for 2h. After the reaction was finished, the solvent and a small amount of water generated were distilled off under reduced pressure, and the shielded phenol product with the structure shown in the title was obtained through column chromatography separation.

[0250] Product characterization data are as follows:

[0251] 1 H NMR (300MHz, CDCl 3 ): δ1.40(9H), 2.37(3H), 4.02(1H), 4.83(2H), 6.95-7.00(12H), 7.26(2H), 7.55(1H);

[0252] 13 C NMR (75MHz, CDCl 3 ): δ21.2, 30.1, 34.1, 49.9, 114.3, 118.9, 119.4, 121.8, 122.2, 125.8, 126.5, 129.5, 131.8, 132.3, 133.5, 143.3, 150.8;

[0253] C 24 h 28 N 2 OS calcd for ...

Embodiment 3

[0255]

[0256]Under nitrogen protection atmosphere, in the 250ml four-necked flask that stirrer, thermometer, condenser tube and dropping funnel are equipped with, add 31.65 grams (133mmol) 2,6-di-tert-butyl-4-mercaptophenol, 1.86 grams (62mmol ) formaldehyde, 28.15 grams (153 mmol) of N-phenyl-p-phenylenediamine, 0.75 grams (7.5 mmol) of hydrochloric acid and 150 mL of isopropanol, stirred rapidly, and reacted at 25 ° C for 24 h. After the reaction was finished, the solvent and a small amount of water generated were distilled off under reduced pressure, and the shielded phenol product with the structure shown in the title was obtained through column chromatography separation.

[0257] Product characterization data are as follows:

[0258] 1 H NMR (300MHz, CDCl 3 ): δ1.36-1.54(18H), 3.75(1H), 4.80(2H), 5.32(1H), 6.80(2H), 6.97(5H), 7.17(2H), 7.26(2H), 7.55(1H) ;

[0259] 13 C NMR (75MHz, CDCl 3 ): δ29.6, 34.6, 51.2, 119.4, 121.8, 126.5, 129.5, 131.4, 136.6, 144.5, 15...

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PUM

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Abstract

The invention relates to a hydraulic oil composition. The hydraulic oil composition contains a screening phenolic compound, an extreme-pressure antiwear additive, a metal deactivator, an antirusting agent, an ashless friction modifier, an anti-emulsifier and a major volume of lubricating oil base oil; and the structure of the screening phenolic compound is represented by a formula (I) shown in the description, wherein all groups in the formula (I) are as defined in the description. The hydraulic oil composition disclosed by the invention can meet the increasingly severe requirements of current higher-specification products on oxidation resistance and further display excellent cleaning and dispersion properties, wear resistance and rust resistance.

Description

technical field [0001] The present invention relates to a hydraulic oil composition. Specifically, the present invention relates to an ashless anti-wear hydraulic oil composition. Background technique [0002] Hydraulic machinery is widely used in industries such as iron and steel, electric power, coal and machinery. Hydraulic oil is the transmission medium used in the hydraulic system, which mainly realizes the transmission, conversion and control of energy, and also plays the role of lubrication, rust prevention, corrosion prevention and cooling of the system. With the development of modern hydraulic technology, the working conditions of the hydraulic system are becoming increasingly harsh, the pressure is increasing, and the operating temperature is increasing. Under high temperature conditions, hydraulic oil is more likely to be oxidized and degraded, resulting in products such as acidic substances, sludge or varnish, which will lead to poor lubricity of the oil, incre...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M135/30C10M135/36C10M143/06C10N30/10C10N30/12C10N30/04C10N30/06C10N40/08
Inventor 苏朔龙军段庆华张辉
Owner CHINA PETROLEUM & CHEM CORP
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