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Synthetic lubricating oil composition for air compressor and preparation method thereof

A lubricating oil composition and technology for air compressors, applied in the field of lubricating grease, can solve the problems of no coke cleaning function, poor lubrication of the compressor, unstable working state, etc., and achieve excellent coke cleaning function and good anti-coking function. performance, the effect of solving poor lubrication

Active Publication Date: 2013-02-06
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned composite synthetic air compressor oil does not have the coke cleaning function, and cannot clean out the sludge, coke and coke formed by the previous oil products in the compression system, so that the compressor still has poor lubrication, unstable working conditions, and replacement. There are many problems such as short oil cycle, easy blockage of filter, coking in key parts, high maintenance and operation costs, etc.

Method used

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  • Synthetic lubricating oil composition for air compressor and preparation method thereof
  • Synthetic lubricating oil composition for air compressor and preparation method thereof
  • Synthetic lubricating oil composition for air compressor and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0053] The present invention also provides a kind of preparation method of synthetic air compressor lubricating oil composition, comprises the following steps:

[0054] Weigh the following raw materials:

[0055] 0.1wt%~10wt% tackifier;

[0056] 2wt%~7wt% antioxidant;

[0057] 0.05wt%~1wt% anti-corrosion agent;

[0058] 1wt%~8wt% extreme pressure antiwear agent;

[0059] 0.0001wt%~0.05wt% defoamer;

[0060] The rest of the ester oil, the ester oil has a formula (I) structure:

[0061]

[0062] Among them, R 1 , R 3 Independently selected from alkyl groups with 5 to 20 carbon atoms, R 2 selected from alkylene groups with 5 to 18 carbon atoms;

[0063] The raw materials were mixed to obtain a synthetic air compressor lubricating oil composition.

[0064] According to the above mass percentages, the present invention weighs each raw material respectively, stirs and mixes them, and obtains a synthetic air compressor lubricating oil composition. Each raw material is co...

Embodiment 1

[0073] Put 89.9kg of ester oil with the structure of formula (I) in a vacuum conditioning kettle, heat up to 85°C, add 0.18kg of tackifier, 3kg of IRGANOX L01 antioxidant, 0.4kg of IRGANOXL06 antioxidant, 0.5kg of T706 corrosion inhibitor, 6kg of Melt tricresyl phosphate (TCP) and 0.02kg of 901 defoamer and pump it into the kettle, and continue to heat up to 100°C to obtain a lubricating oil mixture;

[0074] Under a vacuum of 0.09 MPa, the lubricating oil mixture was stirred and dehydrated for 1 hour, cooled to 50° C., and filtered with diatomaceous earth to obtain a synthetic air compressor lubricating oil composition.

[0075] According to the method described above, the synthetic air compressor lubricating oil composition is subjected to a performance test, and the test results are shown in Table 1, and Table 1 shows the performance of the synthetic air compressor lubricating oil composition obtained in Examples 1 to 3 of the present invention .

Embodiment 2

[0077] Put 86.097kg of ester oil with the structure of formula (I) in a vacuum conditioning kettle, raise the temperature to 85°C, add 5.4kg of tackifier, 3kg of 2,6-di-tert-butyl-α-dimethylamino-p-cresol, 0.5kg tolutriazole, 5kg dibutyl phosphite and 0.003kg No. 10000 methyl silicone oil are melted and pumped into the kettle, and continue to heat up to 110°C to obtain a lubricating oil mixture;

[0078] Under a vacuum of 0.09 MPa, the lubricating oil mixture was stirred and dehydrated for 1 hour, cooled to 50° C., and filtered with diatomaceous earth to obtain a synthetic air compressor lubricating oil composition.

[0079] The performance test of the synthetic air compressor lubricating oil composition was carried out according to the method described above, and the test results are shown in Table 1.

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Abstract

The invention provides a synthetic lubricating oil composition for an air compressor. The synthetic lubricating oil composition comprises 0.1 to 10wt% of tackifier, 2 to 7wt% of antioxygen, 0.05 to 1wt% of corrosion inhibitor, 1 to 8wt% of extreme pressure anti-wear agent, 0.0001 to 0.05wt% of antifoaming agent, and the balance of ester oil. The ester oil is provided with a structure shown as formula (I), wherein R1 and R3 are independently selected from alkyl with 5 to 20 carbon atoms; and R2 is the alkylene with 5 to 18 carbon atoms. The ester oil is provided with a special molecular structure, so that the synthetic lubricating oil composition for the air compressor is excellent in function of cleaning the coking material, and original oil sludge and coking matter of the compressor system can be cleaned and carried out; and the synthetic lubricating oil composition for the air compressor is higher in coking resistance. The invention also provides a preparation method of the synthetic lubricating oil composition for the air compressor.

Description

technical field [0001] The invention relates to the technical field of lubricating grease, in particular to a synthetic air compressor lubricating oil composition and a preparation method thereof. Background technique [0002] Air compressor is a general-purpose mechanical device that can provide power and process gas. It is widely used in the manufacturing industry. Screw, centrifugal and reciprocating air compressors are actually used more often. With the rapid development of air compressors, more stringent requirements are put forward for the performance of air compressor lubricating oil. Among them, the screw and centrifugal air compressors recycle oil, which requires the air compressor lubricating oil to have stronger high temperature oxidation resistance, longer oil change intervals, wider operating temperature range, and greater load capacity. capacity and better heat transfer performance. [0003] Compared with mineral air compressor lubricating oil, synthetic air ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N30/04
Inventor 梅莉赵玉贞李玉平刘月嗥李霞
Owner CHINA PETROLEUM & CHEM CORP
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