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公开(公告)号CN101397238公开(公告)日2009.04.01本发明提供了一种生产二氯丙醇的方法。采用氯化剂与甘油反应,在亚磷酸衍生物或磷酸衍生物或氯化磷衍生物作催化剂的条件下,不断移出反应生成的水,从而得到二氯丙醇。本发明提供的方法克服了现有技术中羧酸类催化剂的挥发造成的产品污染、分离难度大、影响收率的缺点和不挥发性有机酸类催化剂的价格高和催化效率较低的缺点,减少催化剂用量的同时提高了产品得率。
Public (Bulletin) No. CN101397238 Publication date (as notified) 2009.04.01 The present invention provides a method for producing dichlorohydrin. The chlorination agent is reacted with glycerin, and the phosphoric acid derivative or phosphoric acid derivative or phosphorous chloride derivative is used as a catalyst to continuously remove water generated from the reaction to obtain dichloropropanol. The method provided by the invention overcomes the disadvantages of product pollution caused by the volatilization of the carboxylic acid catalyst in the prior art, difficulty of separation, influence of the yield, high price of the non-volatile organic acid catalyst and low catalytic efficiency, Reduce the amount of catalyst at the same time improve the product yield.