Method for controlling temperature of chlorination reaction of 2-chloropropionyl chloride

A method for controlling the temperature of the chlorination reaction of 2-chloropropionyl chloride adopts the following temperature gradient mode: the temperature at 0-24 h is controlled to be 35-40DEG C; the temperature at 24-48 h is controlled to be 45-50 DEG C; the temperature at 48-72 h is controlled to be 55-60 DEG C; and the temperature at 72-96 h is controlled to be 60-65 DEG C, and the temperature after 96 h is controlled to be 65-95 DEG C. The method has the advantages of few impurities generated in the reaction process, improvement of the product and the yield of the product, and effective reduction of the cost of the product. 种2-氯代丙酰氯的氯化反应温度控制方法，所述方法采用温度梯度的方式控制：0～24h以内控制温度在35～40℃；24～48h控制温度在45～50℃；48～72h控制温度在55～60℃；72～96h控制温度在60～65℃,96h以后控制温度65～95℃；反应过程中产生杂质少，提高产品质量与收率，有效降低了产品成本。