High-temperature-resistant lubricating oil base oil and preparation method thereof

A technology for high temperature resistant lubricating oil and base oil, applied in the field of lubricating oil, can solve the problems of poor oxidation stability and low flash point of castor oil, and achieve the effects of good wear resistance, high flash point and good oxidation stability

Inactive Publication Date: 2015-10-07
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of castor oil such as poor oxidation stability and low flash

Method used

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  • High-temperature-resistant lubricating oil base oil and preparation method thereof
  • High-temperature-resistant lubricating oil base oil and preparation method thereof
  • High-temperature-resistant lubricating oil base oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] 1. Preparation of Compound 1

[0028] Add 100g of castor oil into a three-necked flask equipped with a reflux condenser and a constant speed stirrer, raise the temperature to 80°C, add 69g of 2-ethoxybenzoic acid and 2.5g of NaH 2 PO 4 , stirred and reacted at a constant temperature of 310 rpm for 4 hours, cooled to room temperature, allowed to stand for stratification, washed the product with boiling water to neutrality, and then dehydrated by rotary evaporation at 0.02MPa and 86-93°C to obtain compound 1, and its chemical reaction The equation is as follows:

[0029]

[0030] where R 0 represent R 1 represent

[0031] 2. Preparation of Compound 2

[0032] Add 50 g of compound 1 into a three-necked flask equipped with a reflux condenser and a constant speed stirrer, raise the temperature to 50 ° C, and then dropwise add 15 g of acetic acid and 32.5 g of 30% H 2 o 2 Solution and the mixed solution of 1.0g concentrated sulfuric acid (mas...

Example Embodiment

[0040] Example 2

[0041] 1. Preparation of Compound 1

[0042] Add 100g of castor oil into a three-necked flask equipped with a reflux condenser and a constant speed stirrer, raise the temperature to 90°C, add 50g of 2-ethoxybenzoic acid and 2.0g of NaH 2 PO 4 , stirred and reacted at a constant temperature of 310 rpm for 3 hours, cooled to room temperature, and stood to separate layers. After the product was washed with boiling water until neutral, it was dehydrated by rotary evaporation at 0.02MPa and 86-93°C to obtain compound 1.

[0043] 2. Preparation of Compound 2

[0044] Add 40 g of compound 1 into a three-necked flask equipped with a reflux condenser and a constant speed stirrer, raise the temperature to 60° C., then dropwise add 8 g of acetic acid, 20 g of 30% H 2 o 2 Solution and the mixed solution of 0.4g concentrated sulfuric acid (mass fraction is 98%), with 400 rpm constant temperature stirring reaction 2 hours, be cooled to room temperature, leave standsti...

Example Embodiment

[0047] Example 3

[0048] 1. Preparation of Compound 1

[0049] Add 100g of castor oil into a three-necked flask equipped with a reflux condenser and a constant speed stirrer, raise the temperature to 70°C, add 100g of 2-ethoxybenzoic acid and 5.0g of NaH 2 PO 4 , stirred and reacted at a constant temperature of 310 rpm for 5 hours, cooled to room temperature, stood to separate layers, washed the product with boiling water until neutral, and dehydrated by rotary evaporation at 0.02MPa and 86-93°C to obtain compound 1.

[0050] 2. Preparation of Compound 2

[0051] Add 40g of compound 1 into a three-necked flask equipped with a reflux condenser and a constant speed stirrer, raise the temperature to 40°C, then dropwise add 20g of acetic acid, 40g of 30% H 2 o 2 Solution and the mixed solution of 1.2g concentrated sulfuric acid (mass fraction is 98%), with 400 rpm constant temperature stirring reaction 5 hours, be cooled to room temperature, leave standstill layering, after t...

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Abstract

The invention discloses high-temperature-resistant lubricating oil base oil and a preparation method thereof. The base oil is prepared from castor oil through three steps of modification including esterification, epoxidation and ring opening. The base oil prepared through the method is high in flashing point, oxidation stability and wear resistance, remarkable in high-temperature resistance, suitable for the high-temperature environment, green, environmentally friendly, capable of being used for various fields and wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, and in particular relates to a green, environment-friendly, high-temperature resistant lubricating oil base oil and a preparation method thereof. Background technique [0002] The base oil of lubricating oil is composed of mineral oil, synthetic ester and vegetable oil. At the end of the 19th century, mineral oil was discovered and then monopolized the lubricating oil market. With the use of mineral oil, its non-degradability has brought harm to the environment, and the non-renewability of petroleum resources has caused a serious shortage of petroleum resources. Therefore, vegetable oils with high biodegradability and recycling have established an important position in the research of green and environmentally friendly lubricating oil base oils. [0003] Castor oil is a yellow viscous vegetable oil, which belongs to non-drying oil. The main component is 12-hydroxyricinoleic acid glyceri...

Claims

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Application Information

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IPC IPC(8): C10M105/40
Inventor 雷忠利安明伟杨红孙千钧
Owner SHAANXI NORMAL UNIV
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