Biodegradable lubricating oil composition, lubricating oil and preparation method and application thereof

Abstract

The invention relates to a biodegradable lubricating oil composition, lubricating oil and a preparation method and application thereof. The lubricating oil composition comprises an extreme pressure anti-wear agent, an anti-rust agent, an antioxidant, an antioxidant additive, a viscosity index improver, a biodegradation accelerant, an anti-foaming agent, a pour point depressant, first base oil and optional second base oil. Relative to 1 part by weight of the extreme pressure anti-wear agent, the content of the anti-rust agent is 0.04-50 parts by weight; the content of the antioxidant is 0.04 to 30 parts by weight; the content of the antioxidant additive is 0.0002 to 0.1 part by weight; the content of the viscosity index improver is 0.08 to 20 parts by weight; the content of the biodegradation accelerant is 0.012 to 10 parts by weight; the content of the anti-foaming agent is 0.00004 to 30 parts by weight; the content of the pour point depressant is 0.08 to 200 parts by weight; the content of the first base oil is 25-990 parts by weight; and the content of the second base oil is 0-200 parts by weight. The lubricating oil composition has good biodegradability and can accelerate natural degradation of an oil product in an environment.

Description

technical field [0001] The invention relates to the field of lubricating oil, in particular to a biodegradable lubricating oil composition, lubricating oil and its preparation method and application. Background technique [0002] With the rapid development of wind power industry in various countries, the demand for wind power gearbox lubricating oil is increasing rapidly. Traditional lubricating oils have poor biodegradability, and are also discharged during use due to leakage and splashing, causing serious pollution to water sources and environmentally sensitive areas such as mines. Environmental protection laws and regulations around the world are becoming increasingly stringent. In different countries and regions, different environmental protection requirements have different ecological labels for lubricating oils. Especially the "Ecolabel" ecological label of the European Union has stricter ecological requirements for lubricating oils, and is widely recognized in the ind...

AI Technical Summary

Problems solved by technology

[0003] Usually, the gearboxes of wind turbines will inevitably have problems such as running, leaking, dripping, and leaking during the operation of the equipment, which will cause the lubricating oil to be discharged to environmentally sensitive areas such as water sources or mines, especially during the oil replacement process. Easier to make oil into the ecological environment

However, once traditional wind power gear oil is discharged into offshore or mining areas, it will pollute water and soil, destroy species diversity, affect ecological balance, and endanger human production and life.

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