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High-temperature chain oil composition and preparation method thereof

An oil composition and high-temperature chain technology, applied in the field of lubricating oil, can solve the problems of accelerating oxidation rate, shortening the service life of lubricating oil, etc., and achieve the effect of excellent anti-wear performance and anti-oxidation performance

Active Publication Date: 2017-10-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong working conditions of current mechanical equipment, the oxidation rate is often accelerated and the service life of lubricating oil is shortened, so higher requirements are put forward for the efficiency and economy of antioxidants

Method used

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  • High-temperature chain oil composition and preparation method thereof
  • High-temperature chain oil composition and preparation method thereof
  • High-temperature chain oil composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] Among the present invention, the preparation method of the compound of structure shown in formula (I) preferably comprises:

[0042] (a) condensing 2,6-di-tert-butylphenol, formaldehyde and benzene to generate intermediate M shown in formula (II),

[0043]

[0044] (b) contacting the intermediate M obtained in step (a) with a bromination reagent to carry out a bromination reaction to generate a bromination product shown in formula (III),

[0045]

[0046] (c) make the brominated product that step (b) obtains contact with the compound shown in formula (IV) and carry out coupling reaction, generate the antioxidant shown in formula (I),

[0047]

[0048] In step (a) of the present invention, the conditions of the condensation reaction preferably include: under an inert atmosphere, in the first solvent, in the presence of the first catalyst, 2,6-di-tert-butylphenol, formaldehyde and benzene in- React at 20-0°C for 0.5-1.5h, then rise to 15-30°C, then heat to 70-80...

Embodiment

[0089] The following examples will further illustrate the present invention, but do not limit the present invention thereby.

[0090] In the following examples and comparative examples:

[0091] The physical and chemical analysis method of the product: the element content was determined by inductively coupled plasma ion emission spectrometry.

[0092] Structural characterization method: NMR method ( 1 H spectrum, 13 C carbon spectrum), high-resolution mass spectrometry.

preparation example

[0094] In a 500ml flask with an electromagnetic stirrer (stirring speed: 200rpm), fill with nitrogen protection, add 150ml of methanol and 0.01mol of acetic acid, fully cool in an ice-water bath, and then add 0.1mol of 2,6-di tert-butylphenol, 0.2 mol of formaldehyde and 0.3 mol of benzene. After reacting for 1 hour, remove the ice-water bath, heat up to 25°C, heat to 75°C and continue to reflux for 2 hours, then stop the reaction, evaporate the solvent from the reacted system at 0.03MPa and 50°C, then add 250ml of ethyl acetate, and Transfer to a separatory funnel, wash with 100ml of distilled water (twice) and 50ml of saturated brine, and add 10g of anhydrous calcium chloride to dry at 25°C for 20min, and evaporate the filtered filtrate at 40°C and 0.03MPa solvent to obtain the intermediate product M1.

[0095] In a 500ml flask with an electromagnetic stirrer (stirring speed is 200rpm), fill with nitrogen protection, add 150ml of dry tetrahydrofuran, then dissolve the inter...

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Abstract

The invention discloses a high-temperature chain oil composition. On the basis of the weight of a lubricant composition, the lubricant composition is prepared from the following components: 85-99wt% of lubricant base oil, 0.01-10wt% of an antioxidant multipurpose additive, 0.01-5wt% of 2,2'-sulfo-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)] ethyl propionate, 0.05-5wt% of zinc oxide nanoparticles and 0.01-5wt% of a demulsifier. High-temperature chain oil synthesized by the composition has excellent oxidation stability, high temperature stability and liquid-phase anti-rust property and water separation property. The antioxidant multipurpose additive is a compound with a structure as shown in a formula (I). The invention further provides a preparation method of the high-temperature chain oil composition. The high-temperature chain oil composition has excellent abrasion resistance and oxidation resistance and can be widely applied to the field of high-temperature chain lubrication. The formula is as shown in the specification.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a high-temperature chain oil composition containing specific additives and a preparation method thereof. Background technique [0002] With the rapid development of industries such as petrochemicals, textiles, printing and dyeing, building materials and transportation, the power and operating speed of these equipments continue to increase, the operating temperature of the transmission system is getting higher and higher, and the requirements for chain oil are becoming increasingly stringent. High-temperature chain drives work in an environment exposed to high and low temperatures. The temperature of the high-temperature chain oil can reach above 200°C, and the lubricating oil is very easy to oxidize. Therefore, the chain lubricating oil has high high-temperature oxidation stability and good performance at high temperatures. Lubricity is very important. The smooth operation of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M133/44C10M141/08C07D249/04C10N30/06C10N30/10
CPCC07D249/04C10M133/44C10M141/08C10M2215/223C10M2219/084C10N2030/06C10N2030/10
Inventor 谢欣陈政孙洪伟段庆华
Owner CHINA PETROLEUM & CHEM CORP
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