本发明涉及一种除草剂2,4-D的制备方法。针对现有2,4-D生产工艺中环境污染严重、后处理困难的问题,提供了一种操作方便、收率高、产品质量高、三废处理量小、环保性好的生产2,4-D的方法。采用方案为:将苯氧乙酸溶于有机溶剂,以分子筛为催化剂,向其中通入氯气进行氯化反应,反应结 The present invention relates to a method for preparing herbicide 2,4-D. In view of the problems of serious environmental pollution and post-treatment difficulties in the existing 2,4-D production process, the present invention provides a 2,4- D’s method. The scheme is as follows: phenoxyacetic acid is dissolved in organic solvent, molecular sieve is used as catalyst, chlorine gas is introduced into it for chlorination reaction, reaction junction