A kind of liquid antioxidant composition and its application

Abstract

The invention provides a liquid antioxidant composition and application thereof. The liquid antioxidant composition is prepared from the components in parts by weight: 30 to 65 parts of dimethyldipropionate dipropionate, 35 to 60 parts of at least one of hindered phenolic antioxidant, and 0 to 15 parts of at least one of phosphite ester antioxidants. The liquid antioxidant can be widely applied toan oil product, so that the oxidation stability of the oil product can be greatly improved. More importantly, the liquid antioxidant composition is a liquid so as to have great convenience in transporting and feeding, can ensure the continuous production of the oil product, has the characteristic of capability of quickly dispersing in the oil product at the same time, and has an incomparable superior characteristic compared with other solid antioxidants.

Description

technical field [0001] The invention belongs to the technical field of antioxidants, and in particular relates to a liquid antioxidant composition and the application of the antioxidant composition in oil products. Background technique [0002] During the storage and use of oil products, they will age, which is actually the oxidation reaction of oil products. Oxidation will generate acidity and cause corrosion to metals; oxidation will increase the viscosity of oil, consume too much mechanical power and reduce cooling efficiency; further serious oxidation will produce sludge and precipitation, making the machine parts sluggish. Therefore, the appearance of oxidation will not only cause loss of mechanical efficiency, but also cause damage to equipment. For this reason, antioxidants must be added to the oil to slow down the oxidation during storage and use. [0003] The process of oxidation reaction in oil needs to be exposed to oxygen, which is triggered and accelerated by ...

AI Technical Summary

Problems solved by technology

CN104046422A discloses a high ignition point transformer oil composition, wherein the antioxidant is 2,6-di-tert-butyl-p-cresol or 2,6-di-tert-butylphenol and thiodipropionate diester, which solves the problem of existing Transformer oil with high ignition point has the problems of high viscosity, poor oxidation resistance under high temperature conditions, and high acid value

[0005] Although there are many studies on antioxidants used in oil products in the prior art, most of the antioxidants used in oil products are solid products, which have defects such as inconvenient addition and poor dispersibility. At the same time, there is still room for further improvement in antioxidant performance

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