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Hydraulic oil composition and preparation method thereof

A technology of hydraulic oil composition and derivatives, which is applied in lubricating compositions, chemical instruments and methods, compounds of Group 5/15 elements of the periodic table, etc., and can solve the problems of complex preparation process and large environmental impact, etc. Achieve the effects of simple process, no waste gas discharge, safe and environmentally friendly waste water

Active Publication Date: 2022-03-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The condensate exhibits good corrosion resistance, extreme pressure and anti-wear properties and anti-friction properties in the base oil, but its preparation process is complicated, and strong alkali and strong acid are used, resulting in a large amount of waste water, which has a great impact on the environment

Method used

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  • Hydraulic oil composition and preparation method thereof
  • Hydraulic oil composition and preparation method thereof
  • Hydraulic oil composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0185]

[0186] Under a nitrogen protective atmosphere, in a 250ml four-necked flask equipped with a stirrer, a thermometer, a condenser and a water separator, add 31.26 grams (116mmol) of octadecylamine and 6.36 grams (212mmol) of paraformaldehyde, 9.05 grams (76mmol) Benzotriazole and 25.41 g (105 mmol) of di-n-butyldithiophosphoric acid were stirred rapidly, and the temperature was raised to 100° C. for 3 h. After the reaction was completed, the remaining water was distilled off under reduced pressure, cooled to room temperature, settled for 24 hours, filtered to remove impurities, and separated by column chromatography to obtain the final product, marked as M-1.

[0187] Product characterization data are as follows:

[0188] 1 H NMR (300MHz, CDCl 3 ): δ0.88(3H), 1.03-1.71(46H), 2.61-3.93(6H), 4.22-4.54(2H), 5.20-6.15(2H), 7.18-8.08(4H);

[0189] C 34 h 63 N 4 o 2 P.S. 2 Calculated for C 62.35, H 9.70, N 8.55, O 4.89, P 4.73, S 9.79; found: C 63.25, H 10.0, N 8.4...

Embodiment 2

[0191]

[0192] Under a nitrogen protective atmosphere, in a 500ml four-necked flask equipped with a stirrer, a thermometer, a condenser and a water separator, add 60.10 grams (223 mmol) of octadecylamine and 18.3 grams (610 mmol) of paraformaldehyde and 30.60 grams (230 mmol) 5-Methylbenzotriazole was stirred rapidly, the temperature was raised to 85°C, 71.31 g (251 mmol) of isopropyl 2-ethylhexyl dithiophosphoric acid was added dropwise, and the reaction was carried out at constant temperature for 6 hours. After the reaction was completed, the remaining water was distilled off under reduced pressure, cooled to room temperature, settled for 24 hours, filtered to remove impurities, and separated by column chromatography to obtain the final product, marked as M-2.

[0193] Product characterization data are as follows:

[0194] 1 H NMR (300MHz, CDCl 3 ): δ0.88(9H), 1.08-1.71(47H), 2.43-3.93(7H), 4.22-4.54(2H), 4.74(1H), 5.20-6.21(2H), 7.39-7.75(3H);

[0195] C 38 h 71 N ...

Embodiment 3

[0197]

[0198] Under nitrogen protection atmosphere, in the 500ml four-neck flask that stirrer, thermometer, condenser and water separator are equipped with, add 25.9 grams (130mmol) tertiary carbon primary amines and 13.5 grams (450mmol) paraformaldehyde, 21.89 grams (125mmol) ) 6-butylbenzotriazole and 100mL toluene, stirred rapidly, raised the temperature to 95°C, added 55.23g (150mmol) bis(2-ethylhexyl)dithiophosphoric acid dropwise, and reacted at constant temperature for 5h. After the reaction was completed, the solvent and residual water were distilled off under reduced pressure, cooled to room temperature, settled for 24 hours, filtered to remove impurities, and separated by column chromatography to obtain the final product, marked as M-3.

[0199] Product characterization data are as follows:

[0200] 1 H NMR (300MHz, CDCl 3 ): δ0.89(18H), 1.05-1.93(48H), 2.34-2.50(2H), 3.43-3.72(4H), 4.24-4.72(2H), 5.31-6.20(2H), 7.19-7.82(3H) ;

[0201] C 42 h 79 N 4 o 2...

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Abstract

The invention provides a hydraulic oil composition and a preparation method thereof. The hydraulic oil composition of the present invention includes a benzotriazole derivative, an antioxidant, an extreme pressure antiwear agent, an ashless friction modifier, an ashless dispersant and a lubricating base oil. The hydraulic oil composition of the present invention not only has excellent anti-wear performance, anti-oxidation performance and cleaning and dispersing performance, but also has excellent anti-corrosion performance and anti-friction performance, fully meeting the requirements of hydraulic oil products of various specifications.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a 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, increased friction in the valve, increased energy consumption...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M137/10C10M169/04C07F9/6518C10N30/12C10N30/04C10N30/06C10N30/10C10N40/08
CPCC10M137/105C10M169/04C07F9/65188C10M2223/04C10M2215/28C10M2223/047C10M2215/065C10M2215/08C10M2215/086C10M2207/026C10N2030/06C10N2030/04C10N2030/10C10N2030/12C10N2040/08
Inventor 苏朔段庆华张辉成欣
Owner CHINA PETROLEUM & CHEM CORP