Describes a method for obtaining substantially pure chloromethyl chloroformate from a chloroformate mixture comprising chloromethyl chloroformate and methyl chloroformate by heating the chloroformate mixture in a reaction zone at temperatures ranging from at least 50° C. to the reflux temperature of the chloroformate mixture in the reaction zone while simultaneously removing volatile gaseous decomposition products from the reaction zone. Dichloromethyl chloroformate may also be present in the chloroformate mixture.
描述了一种从
氯甲基
氯甲酸酯和甲基
氯甲酸酯组成的
氯甲酸酯混合物中获得基本纯的
氯甲基
氯甲酸酯的方法,该方法包括在反应区域中加热
氯甲酸酯混合物,温度范围至少从50°C到反应区域中
氯甲酸酯混合物的回流温度,同时从反应区域中去除挥发性气态分解产物。
氯甲基
氯甲酸酯也可能存在于
氯甲酸酯混合物中。