Synthetic high temperature chain oil and preparation method thereof

A high-temperature chain and high-temperature antioxidant technology, which is applied in the petroleum industry, lubricating compositions, additives, etc., can solve the problems of insufficient high-temperature oxidation resistance and coking performance, and achieve the effect of improving high-temperature oxidation resistance and reducing the tendency of coking

Inactive Publication Date: 2018-12-07
芜湖市欧贝润滑剂有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a synthetic high-temperature chain oil and its production method to overcome the insufficient high-temperature oxidation resistance and coking performance of the existing synthetic high-temperature chain oil

Method used

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  • Synthetic high temperature chain oil and preparation method thereof
  • Synthetic high temperature chain oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 Preparation of Organic Rare Earth A

[0032] In a 1.5L flask equipped with a stirrer, add 200ml of water, 335.5g (3.05mol) of thiophenol and 171g (3.05mol) of potassium hydroxide, stir and heat up to 90-95°C for 0.5 hours of constant temperature reaction, then Add 354.4 g (1 mole) of rare earth chloride and react at a constant temperature of 90-95°C for 1.5 hours. Cool to room temperature, filter, wash the solid with water until neutral, and then dry it in a constant temperature oven at 80-90°C to obtain an organic rare earth A compound.

Embodiment 2

[0033] Example 2 Preparation of Organic Rare Earth B

[0034] In a 1.5L flask equipped with a stirrer, add 200ml of water, 379.4g (3.05mol) of p-cresol and 171g (3.05mol) of potassium hydroxide, stir and heat up to 90-95°C for constant temperature reaction 1 Hours, then add 354.4 g (1 mole) of rare earth chloride and react at a constant temperature of 90-95°C for 2 hours. Cool to room temperature, filter, wash the solid with water until neutral, and then dry it in a constant temperature oven at 80-90°C to obtain the organic rare earth B compound.

Embodiment 3-5

[0036] Prepared for synthetic ultra-high temperature chain oils. Examples 3-5 are prepared in the same way except that the composition of raw materials is different. The preparation method is: add base oil, organic rare earth, high-temperature antioxidant, extreme pressure anti-wear additive, rust inhibitor, metal deactivator and detergent dispersant into the mixing container, stir and heat up to 120-130°C, constant temperature stirring and dehydration After 1-1.5 hours, stop heating, stir and cool to 70-80°C, and filter to obtain the product. The composition of each embodiment is shown in Table 1, and the performance analysis results are shown in Table 2.

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Abstract

The invention relates to a synthetic high temperature chain oil and a preparation method thereof. The weight ratio of raw materials of the chain oil is as follows: 70-95% of base oil; 0.5-3% of organic rare earth; 0.5-3% of a high temperature anti-oxidant; 0-20% of a viscosity index improver; 2-3% of an extreme pressure-antiwear additive, 0-1% of an antirust agent, 0-1% of a metal passivator; and0-3% of a detergent / dispersant additive. The introduction of the organic rare earth in a formula can significantly enhance the high temperature antioxidation performance and anti-coking performance ofthe chain oil.

Description

technical field [0001] The invention relates to the field of lubricants, in particular to a synthetic high-temperature chain oil and a preparation method thereof. Background technique [0002] High temperature chain oil generally works in a high temperature environment, and the working temperature is 200-250°C. Synthetic high-temperature chain oils widely used at present are mainly synthetic ester high-temperature chain oils, because synthetic ester high-temperature chain oils take into account good high-temperature performance and reasonable cost. However, when the synthetic ester high-temperature chain oil is used between 230-250°C, due to reaching its limit service temperature, the oxidative deterioration of the oil is accelerated, and coking is formed quickly, which eventually leads to serious chain wear, abnormal operation, increased energy consumption, Problems such as short maintenance cycle. [0003] In order to solve the problem of anti-oxidation of synthetic este...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M135/28C10M169/04C10N30/10C10N30/08
CPCC10M135/28C10M169/04C10M2207/2835C10M2207/2855C10M2215/064C10M2215/065C10M2215/08C10M2215/086C10M2215/223C10M2219/086C10M2219/104C10M2223/041C10M2227/00C10N2030/08C10N2030/10C10N2040/38C10N2010/06
Inventor 冯渝朱淑窕
Owner 芜湖市欧贝润滑剂有限责任公司
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