Alcohol ether carboxylate preparation method

The invention relates to a preparation method of alcohol ether carboxylate and belongs to the technical field of a surfactant. The alcohol ether carboxylate is prepared from alcohol ether and sodium chloroacetate in the presence of alkali metal hydroxide and a phase-transfer catalyst. The preparation method comprises putting alcohol ether and a phase-transfer catalyst into a reactor, mixing an alkali metal hydroxide and sodium chloroacetate to obtain a uniform mixture, putting the mixture into the reactor in batch, carrying out ageing, adding anhydrous ethanol into the reactor, carrying out filtration to remove inorganic salt and excess sodium chloroacetate, and carrying out distillation to remove anhydrous ethanol and to obtain a product. The preparation method of alcohol ether carboxylate has the advantages of simple processes, mild reaction conditions and high conversion rate.