Method for preparing tert-butyl peroxyneodecanoate (BNP) through continuous flow

Abstract

The invention provides a method for preparing tert-butyl peroxyneodecanoate (BNP) through a continuous flow, wherein the method includes an alkaline aqueous solution is prepared, the alkaline aqueous solution and a tert-butyl hydrogen peroxide aqueous solution are subjected to a reaction in a reactor, a neodecanoyl chloride solution and the product of the alkaline aqueous solution and the tert-butyl hydrogen peroxide aqueous solution are subjected to a reaction, and the product is subjected to further full reaction through a delay pipeline to obtain the product, wherein the reaction process is carried out in a micro-reactor. With adopting of the prepared solvent-type or emulsion-type tert-butyl peroxyneodecanoate (BNP), the product quality is stable, and the reproducibility is good; because the reaction is carried out in the micro-reactor, the process flow is simplified, the reaction is continuously carried out under mild, safe and environmental-protection conditions, the amount and the yield of the product are greatly improved, and the yield can reach above 98%.

Description

technical field [0001] The present invention relates to a kind of preparation method of initiator tert-butyl peroxyneodecanoate (BNP) used for high polymer synthesis, particularly a kind of method for preparing tert-butyl peroxyneodecanoate (BNP) by continuous flow, belonging to chemical industry. Background technique [0002] Microreactors, that is, microchannel reactors, are microreactors with characteristic sizes between 10 and 300 microns manufactured by precision processing technology. The microreactor can make the channel of the reaction fluid at the micron level, and can contain millions of microchannels. At the same time, due to its internal microstructure, the microreactor device has a large specific surface area, which can reach the ratio of the stirred tank. Hundreds or even thousands of times the surface area. Microreactors have excellent heat and mass transfer capabilities, which can achieve instant uniform mixing of materials and efficient heat transfer, so m...

AI Technical Summary

Problems solved by technology

[0004] The industrial production of tert-butyl peroxyneodecanoate (BNP) adopts intermittent operation mode, the labor intensity of workers is high, the process conditions are greatly affected by human factors, and the quality stability and reproducibility are poor

At the same time, due to the large structural size inside the reactor equipment, the concentration of substances in the reaction process, and the temperature distribution are uneven, resulting in insufficient active oxygen in the finished product of tert-butyl peroxyneodecanoate (BNP), which reduces the product quality.

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