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Biodegradable screw air compressor oil

An air compressor oil and biodegradation technology, applied in the field of lubricating oil, can solve the problems of thermal oxidation stability, poor low temperature fluidity, etc., and achieve the effects of improving oxidation stability, reducing double bond content and being environmentally friendly.

Active Publication Date: 2015-05-20
张家港市胜宇石油化工制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vegetable oil has many advantages as the base oil of biodegradable lubricants, but the thermal oxidation stability and low temperature fluidity are poor. Improving the oxidation stability and low temperature performance of vegetable oil is the key to its use as air compressor oil base oil

Method used

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  • Biodegradable screw air compressor oil
  • Biodegradable screw air compressor oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take 46 parts of base oil A and 51.64 parts of PAG polyether base oil into a stainless steel blending kettle with agitator, keep the temperature of the kettle at 60°C, and stir continuously for 0.5 hours; sequentially add 0.5 parts of alkylated diphenylamine, 0.9 parts Add borate ester anti-oxidant and anti-wear agent, 0.4 part of high-temperature ashless anti-wear agent; 0.5 part of sorbitol fatty acid ester; 0.05 part of benzotriazole derivative; 0.01 part of copolymer of acrylate and ether into the blending kettle , maintain the temperature of the kettle at 65°C, and continue to stir for 1 hour until the mixture is completely dissolved and uniform, and the refined oil is obtained.

Embodiment 2

[0017] Take 48.3 parts of base oil B and 48.79 parts of polyether base oil into a stainless steel mixing tank with agitator for reaction, keep the temperature of the tank at 60°C, and continue stirring for 0.5 hours; sequentially add 0.4 parts of alkylated diphenylamine, 0.6 parts Borate antioxidant, 0.6 part of high temperature ashless anti-wear agent; 0.8 part of sorbitol fatty acid ester; 0.5 part of polyalphaolefin pour point depressant; The temperature was 65°C, and the mixture was continuously stirred for 1 hour until the mixture was completely dissolved and became uniform, and the refined oil was obtained.

Embodiment 3

[0019] Take 28.5 parts of base oil A, 36 parts of base oil B, and 31.99 parts of PAG polyether base oil into a stainless steel mixing tank with agitator for reaction, keep the temperature of the tank at 60°C, and continue stirring for 0.5 hours; Alkylated diphenylamine, 0.75 parts of borate antioxidant, 0.8 part of high temperature ashless anti-wear agent; 0.95 part of sorbitol fatty acid ester; 0.5 part of polyalphaolefin pour point depressant; 0.01 part of copolymer of acrylate and ether Put it into the blending kettle, keep the temperature of the kettle at 60°C, and stir continuously for 1 hour, until the mixture is completely dissolved and becomes uniform, and the refined oil is obtained.

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Abstract

The invention discloses a preparation method of biodegradable screw air compressor oil. The preparation method comprises the following steps: 1) synthetizing base oil A; 2) synthetizing base oil B; 3) preparing combined base oil A1; 4) preparing combined base oil B1; 5) preparing combined base oil C1; and 6) adding the combined base oil A1, the combined base oil B1 or the combined base oil C1 into a blending kettle, then adding other regents, mixing and fully dissolving all the components to obtain the biodegradable screw air compressor oil. Through optimization of ratio, an excellent lubricating oil product which has good oxidization stability, viscosity-temperature performance, wearing resistance, anti-rust performance and defoaming performance and no toxicity and can be biodegradable is prepared, which is environment-friendly, has a performance index achieving 46 # compressor oil standard, and is suitable for a screw air compressor and the like.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, in particular to a biodegradable screw air compressor oil. Background technique [0002] Air compressor oil is mainly used for the lubrication of the moving parts of the compressor cylinder and the exhaust valve, and plays the role of anti-rust, anti-corrosion, sealing and cooling. Since the compressor is always in an environment of high pressure, high temperature and condensed water (for air compressors), the air compressor oil should have excellent high temperature oxidation stability, low carbon deposition tendency, suitable viscosity and viscosity temperature Performance and good oil-water separation, anti-rust and anti-corrosion properties, etc. Lubricating oil with too low viscosity is not easy to form a strong enough oil film, which will accelerate wear and shorten the service life of parts. On the contrary, if the viscosity of lubricating oil is too high, it will increase the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/12C10N30/10
Inventor 黄红袁卫华
Owner 张家港市胜宇石油化工制品有限公司
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