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Phosphate hydraulic oil composition

A hydraulic oil composition and composition technology, applied in lubricating compositions, petroleum industry, etc., can solve problems such as poor solubility, and achieve the effects of excellent low-temperature viscosity, excellent low-temperature fluidity, and excellent shear stability

Active Publication Date: 2013-01-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in chemical composition and structure, the viscosity index improvers used in automotive engine lubricating oils have poor solubility in phosphate ester hydraulic oils, so they cannot be used in phosphate ester hydraulic oils

Method used

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  • Phosphate hydraulic oil composition
  • Phosphate hydraulic oil composition
  • Phosphate hydraulic oil composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 56 g of toluene, 0.1 g of isobutanol and 0.42 g of boron trifluoride etherate were placed in a 500 ml glass flask equipped with a U-shaped tube, dropping funnel, spherical condenser, thermometer and stirrer. A mixture of 60 g of vinyl ethyl ether and 80 g of vinyl isobutyl ether was put into the dropping funnel and added dropwise to the flask over 2 h. The reaction started during the dropwise addition, and the temperature of the reaction solution rose. The temperature of the reaction solution was kept at about 25°C by cooling with an ice-water bath. After the dropwise addition was complete, the reaction solution was stirred for another 30 min. Then, the reaction mixture was transferred to a washing vessel and washed three times with 500 ml of aqueous sodium hydroxide solution (6%) and then with water to render the mixture neutral. The solvent and residual starting material were removed under vacuum to obtain the polymer product. 1.4 g of amorphous nickel catalyst and...

Embodiment 2

[0058] 48 g of isooctane, 0.3 g of isobutanol and 1.2 g of boron trifluoride etherate were charged into a 500 ml glass flask equipped with a U-shaped tube, dropping funnel, spherical condenser, thermometer and stirrer. A mixture of 140 g of vinyl ethyl ether and 20 g of vinyl isobutyl ether was put into the dropping funnel and added dropwise to the flask over 2 h. The reaction started during the dropwise addition, and the temperature of the reaction solution rose. The temperature of the reaction solution was kept at about 35°C by cooling with an ice-water bath. After the dropwise addition was complete, the reaction solution was stirred for another 30 min. Then, the reaction mixture was transferred to a washing vessel and washed three times with 500 ml of aqueous sodium hydroxide solution (6%) and then with water to render the mixture neutral. The solvent and residual starting material were removed under vacuum to obtain the polymer product. 2.8g of amorphous nickel catalyst...

Embodiment 3

[0060] 81 g of isooctane, 0.05 g of ethanol and 0.8 g of aluminum trichloride were placed in a 500 ml glass flask equipped with a U-shaped tube, dropping funnel, spherical condenser, thermometer and stirrer. A mixture of 10 g of vinyl ethyl ether and 150 g of vinyl isohexyl ether was put into the dropping funnel and added dropwise to the flask over 2 h. The reaction started during the dropwise addition, and the temperature of the reaction solution rose. The temperature of the reaction solution was kept at about 40°C by cooling with an ice-water bath. After the dropwise addition was complete, the reaction solution was stirred for another 30 min. Then, the reaction mixture was transferred to a washing vessel and washed three times with 500 ml of aqueous sodium hydroxide solution (6%) and then with water to render the mixture neutral. The solvent and residual starting material were removed under vacuum to obtain the polymer product. 2.1g of Raney nickel catalyst and 70g of pol...

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Abstract

The invention provides a phosphate hydraulic oil composition, which comprises the following component: A) a viscosity index improver, wherein the mass of the viscosity index improver accounts for 1%-15% of total mass of the composition; B) an antioxidant, wherein the mass of the antioxidant accounts for 0.1-2% of total mass of the composition; C) a metal corrosion inhibitor, wherein the mass of the metal corrosion inhibitor accounts for 0.01-0.5% of total mass of the composition; D) an antirust agent, wherein the mass of the antirust agent accounts for 0.01%-1% of total mass of the composition; and E) a phosphate basic liquid as balance. The viscosity index improver is prepared by an alkyl vinyl ether monomer and a branched-chain alkyl vinyl ether monomer through a polymerization reaction and a hydrogenation reaction. The phosphate hydraulic oil composition has excellent viscosity control and low temperature performance, and good shear stability, and the phosphate hydraulic oil composition is suitable for aviation hydraulic oil.

Description

technical field [0001] The invention relates to a phosphate ester hydraulic oil composition, in particular to a phosphate ester hydraulic oil composition used for aviation hydraulic oil. Background technique [0002] The hydraulic oil used in aviation hydraulic system and high temperature and fire-resistant equipment needs to have excellent flame retardancy, good high and low temperature performance, good thermal and oxidation stability, good corrosion stability and low viscosity change in a wide temperature range. That is to have a high viscosity index. By adding a suitable viscosity index improver to the hydraulic oil, the oil can have a high viscosity index and good low-temperature fluidity, and can maintain good flow at the lowest possible operating temperature (such as high-altitude flight), and at the same time Sufficient viscosity is maintained at higher operating temperatures. [0003] In recent years, with the continuous improvement of environmental protection req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C08F216/18C08F8/04C10N40/08C10N30/02C10N30/10C10N30/12
Inventor 陈晓伟阎欢梁宇翔邹玉华
Owner CHINA PETROLEUM & CHEM CORP