Preparation process of antioxidant 1425

Abstract

The invention relates to the technical field of antioxidants, and discloses a preparation process of an antioxidant 1425. According to the preparation process of the antioxidant 1425, mixed raw material mixed liquid is conveyed into a distillation tower to be distilled after being filtered, the raw material mixed liquid in the distillation tower is heated through high temperature, sublimated fog water is conveyed into a condensation pipe for cooling through a pipeline, and the cooled water is processed and stored through a low-boiling-point component storage tank; a raw material pump machine and a special conveying pump machine are added in the steps, conveying of the pump machines is utilized, and a valve is arranged in a pipeline of a final finished product, so that it is guaranteed that internal antioxidant is isolated from a human body, and the situation that the effect of the antioxidant is poor due to the fact that external factors influence components of the internal antioxidant is avoided; and by means of process distillation, traditional process complexity is reduced, the cost is reduced, the application range is widened, and the production efficiency is improved.

Description

technical field

[0001] The invention relates to the technical field of antioxidants, in particular to a preparation process of antioxidant 1425. Background technique

[0002] In the 1970s, with the continuous deepening of the research on the mechanism of polymer stabilization and the increasingly stringent requirements for the performance of polymer products in the application field, the shortcomings of symmetrical hindered phenol antioxidants with strong steric hindrance effects became more and more obvious. . Asymmetric hindered phenol antioxidants stand out for their weak steric hindrance effect, easy formation of intermolecular hydrogen bonds between phenolic hydroxyl groups and ester bonds of thioesters, etc., thus making up for the shortcomings of symmetrical hindered phenol antioxidants. At present, commercialized asymmetric hindered phenol antioxidants include Irganox245, Cyanox1790 and ADKStabAO-80. Cyanox 1790 is a semi-hindered phenolic antioxidant developed by ...