Method for continuously producing ethylene glycol series ether derivatives at normal pressure

The invention discloses a method for continuously producing ethylene glycol series ether derivatives under normal pressure, and belongs to the technical field of organic synthesis. The preparation method comprises the following steps: mixing ethylene glycol monoalkyl ether or diethylene glycol monoalkyl ether with dialkyl carbonate to prepare a reaction solution, feeding the reaction solution into a reactor filled with a solid-phase metal phosphate catalyst, and carrying out a heating reaction to obtain the ethylene glycol series ether derivative. The preparation method provided by the invention has the advantages of low toxicity of used raw materials, no need of special conditions in reaction, high safety, simple experimental device and few byproducts, and meets the requirements of green chemistry. The ethylene glycol series ether derivative is prepared from the cheap and easily available alkyl carbonate, ethylene glycol monoalkyl ether and diethylene glycol monoalkyl ether, and has high economic benefits. 本