System and method for continuously producing diethyl methylphosphonite

Abstract

The present invention provides a system for continuously producing diethyl methylphosphonite, comprising a rapid mixing reactor and a material circulation subsystem. An inlet of the rapid mixing reactor is provided with a rapid mixing component; the rapid mixing component comprises a first liquid inlet and a second liquid inlet; the second liquid inlet is used for feeding a material containing methylphosphonous dichloride; the material circulation subsystem comprises a filter, a material distribution unit, an acid binding agent premixer, and a heat exchanger, which are connected in sequence; the filter is also provided with a solid waste outlet; the material distribution unit is also provided with a diethyl methylphosphonite outlet; the acid binding agent premixer is also provided with a reaction raw material inlet and an acid binding agent inlet; an inlet of the filter is connected to an outlet of the rapid mixing reactor; and an outlet of the heat exchanger is connected to the first liquid inlet. A method for continuously producing the diethyl methylphosphonite by using the system can achieve large-scale continuous production of the diethyl methylphosphonite, and has the advantages of high product yield, stable production, and high production benefit.

Dependencies are inferred from the claim text.