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Compressor oil composition

A technology for compressor oil and composition, applied in the directions of lubricating composition, petroleum industry, base material, etc., can solve problems such as difficult and long life requirements, and achieve the effects of excellent lubricating performance, high viscosity index and good oxidation stability

Active Publication Date: 2009-04-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to meet the long-life requirements for mineral oil-type screw compressor oils using general hindered phenolic antioxidants
[0005] Regarding the use of semi-hindered phenolic antioxidants as one of the main antioxidants for compressor oils, there are no literature or patent reports at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Below in conjunction with embodiment, the present invention is further described. The semi-hindered phenol antioxidant used in Examples 1-4 is methyl (3-methyl-5-tert-butyl-4-hydroxyphenyl)propionate. The semi-hindered phenol antioxidant used in Example 5 was triethylene glycol bis-β-(3-tert-butyl-5-methyl-4-hydroxyphenyl)propionate.

[0024] Composition of Examples

[0025] components Example 1 Example 2 Example 3 Example 4 Example 5 base oil hydrogenated mineral oil hydrogenated mineral oil hydrogenated mineral oil hydrogenated mineral oil hydrogenated mineral oil Alkylated diphenylamine 0.4％ 0.3％ 0.1％ 0.25％ 0.4％ Semi-Hindered Phenol Antioxidant 0.1％ 0.15％ 0.6％ 0.08％ 0.1％ Boronated Ashless Dispersant 2％ 2％ 5％ 5％ 2％ T306 0.3％ 0.1％ 0.4％ 0.5％ 0.3％ T406 0.08％ 0.04％ 0.06％ 0.02％ 0.08％ T551 0.08％ 0.05％ 0.03％ 0.05％ 0.08％ T912 100ppm 0 300ppm 400ppm 100ppm

[0026] Comp...

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PUM

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Abstract

The invention provides a compressor oil compound which comprises the following materials on the basis that the weight of base oil is 100 percent: (1) a main amount of hydrogenization mineral oil base oil; (2) 1 to 15 weight percent of ashless dispersant; (3) 0.01 to 1 weight percent of the combination of half-hindered phenolic antioxidant or amine antioxidant and half-hindered phenolic antioxidant; (4) 0.05 to 2 weight percent of antiwear additive; (5) 0.01 to 0.5 weight percent of friction modifier; (6) 0.01 to 0.2 weight percent of metal passivator; and (7) 0 to 1000ppm of antifoamer. The compressor oil has the advantages of high viscosity index, excellent lubricating property and good oxidative stability.

Description

technical field [0001] The present invention relates to a compressor oil composition. Background technique [0002] Compressor is a general-purpose machine, widely used in petrochemical, machinery manufacturing, construction, mining, metallurgy, textile, food and other fields of national economy and people's life. Due to the continuous progress and development of technology, screw compressors are becoming more and more perfect, and they have the advantages of some centrifugal compressors and reciprocating piston compressors, and have become the mainstream of compressors. At present, domestic screw compressors have also been widely used. [0003] Compressor oil, especially the mainstream screw compressor oil, is a special lubricating oil, which mainly plays the role of lubricating the screw, bearing, connecting rod and other transmission parts of the compressor, as well as cooling and cleaning. In recent years, long life is the main development direction of screw compressor...

Claims

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Application Information

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IPC IPC(8): C10M137/10C10M129/76C10M133/12C10M129/68C10M133/16C10M133/44C10M135/36C10M101/00C10N30/06C10N30/10C10N30/04C10N40/30
Inventor 陈晓伟梁宇翔邹玉华阎欢贺景坚尹开吉
Owner CHINA PETROLEUM & CHEM CORP
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