Air compressor oil composition and preparation method thereof

A technology of air compressor oil and composition, which is applied in the direction of preparation of organic compounds, lubricating compositions, chemical instruments and methods, etc., can solve the problems of low freezing point, strong steric hindrance effect, etc., and achieve high purity and excellent preparation method Simple and easy to use, the effect of excellent antioxidant properties

Active Publication Date: 2020-05-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN 1611563A provides a symmetrical hindered phenol antioxidant, which has the characteristics of low freezing point and strong antioxidant performance, but it has a relatively strong steric hindrance effect in the molecular structure of the ubiquitous symmetrical hindered phenol antioxidant. insufficient

Method used

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  • Air compressor oil composition and preparation method thereof
  • Air compressor oil composition and preparation method thereof
  • Air compressor oil composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The preparation of the pentadecylphenol of embodiment 1

[0063] Put 100g of cardanol and 1.5g of palladium-carbon catalyst into a 200ml autoclave, seal the autoclave, feed hydrogen to 3.5MPa, start stirring, heating, and react at 200°C for 4.5 hours. After the reaction was completed, the temperature was lowered to 60°C, and the viscous reaction mixture was taken out, and distilled under reduced pressure at 100 Pa and 160°C for 1 h, and a milky white solid was obtained after cooling. Dissolve it with petroleum ether, and then crystallize and purify to obtain m-pentadecylphenol with a purity greater than 98%, and the reaction conversion rate is 83.6%.

Embodiment 2

[0064] The preparation of embodiment 2 6-tert-butyl cardanol

[0065] Dissolve 30g of cardanol into 100ml of acetone, put it into a 250ml three-necked flask, add 0.9g of zinc chloride catalyst, start stirring and heating. Maintaining the reaction temperature at 60°C, 9.5 g of tert-butyl chloride was slowly added dropwise into the reaction flask, and the reaction was continued for 3 hours after the dropwise addition was completed. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. After filtering the reaction product, wash it with 5% KOH solution, then wash it with distilled water to neutrality, distill under reduced pressure at 1000Pa and 120°C for 1h, remove the solvent, water and unreacted raw materials, and obtain a brown-red transparent viscous The thick liquid is 6-tert-butylcardanol, and the conversion rate of the product is 85.1%.

Embodiment 3

[0066] Example 3 Preparation of 3-pentadecyl-6-tert-butylphenol

[0067] Dissolve 30g of m-pentadecylphenol into 100ml of acetone, put it into a 250ml three-necked flask, add 1.5g of zinc chloride catalyst, start stirring and heating. Maintaining the reaction temperature at 50°C, 9.5 g of tert-butyl chloride was slowly added dropwise into the reaction flask, and the reaction was continued for 5 hours after the dropwise addition was completed. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. After filtering the reaction product, wash it with 5% KOH solution, then wash it with distilled water until it is neutral, distill it under reduced pressure at 1000Pa and 120°C for 1h, remove the solvent, water and unreacted raw materials, and obtain an orange-yellow color after cooling down. The solid is 3-pentadecyl-6-tert-butylphenol, and the conversion rate of the product is 80.1%.

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PUM

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Abstract

The invention provides an air compressor oil composition and a preparation method thereof. The air compressor oil composition comprises the following components: A) a phenolic compound accounting for0.1%-15% of the total mass of the composition; B) thiophenol ester accounting for 0.01%-10% of the total mass of the composition; C) a nano metal oxide accounting for 0.01%-5% of the total mass of thecomposition; D) a pour point depressant accounting for 0.01%-5% of the total mass of the composition; (E) an anti-foaming agent accounting for 0.001%-2% of the total mass of the composition, and (F)a main amount of base oil, and the structure of the phenolic compound is shown as a general formula (I), and the definition of each group in the general formula (I) is shown in the specification, Theair compressor oil composition has excellent wear resistance and oxidation resistance.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to an air compressor oil composition. Background technique [0002] The lubricating oil used in the air compressor is in a high temperature and high pressure environment. Due to long-term contact with the air, the lubricating oil is easily oxidized and deteriorated. During recycling, oil products are easily oxidized and deteriorated to produce various acids, colloids, asphaltene and other substances, which cause the viscosity and acid value of oil products to increase and the sludge generated by oxidation to increase, resulting in compressor operation failure and excessive wear. Reduce working performance, and may even cause the danger of cylinder explosion. High temperature oxidation stability is the main quality index of compressor oil. In addition, compressor oil also needs to have good anti-wear ability and anti-extreme pressure performance. With the rapid development of techn...

Claims

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Application Information

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IPC IPC(8): C10M129/14C10M169/04C07C37/20C07C39/16C10N30/10C10N30/06C10N50/10
CPCC10M129/14C10M169/044C10M2207/026C10M2201/062C10M2229/041
Inventor 陈晓伟谢欣武志强
Owner CHINA PETROLEUM & CHEM CORP
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