Verfahren zur kontinuierlichen Herstellung von Propylenchlorhydrin

摘要

1339650 Propylene chlorohydrin BADISCHE ANILIN- & SODA-FABRIK AG 10 May 1971 [11 May 1970] 13961/71 Heading C2C Propylene chlorohydrin is continuously produced in aqueous solution by reaction of propylene with an aqueous solution of chlorine, the make-up water or the recycled reaction solution or a mixture thereof being loaded with gaseous and/or liquid chlorine in such an amount that that solubility limit is not exceeded, the propylene being metered at 2 to 20 atm. absolute and 10-80‹ C. into the chlorine-laden solution, the reaction mixture being allowed to react to completion in one or more parallel reaction tubes with turbulent flow in the same pressure range with a residence time of not more than ten seconds, the pressure then being released and the by-produets separated if desired, some of the propylene chlorohydrin being withdrawn as product and the remainder being recycled, the process being characterized by the introduction of the chlorine and propylene at a velocity of 2 to 100 m/sec. through one or more nozzles into a mixing zone extending in the direction of flow whose diameter is 1À5 to 50 times the mean outlet diameter of the liquid nozzles and whose length is 3 to 30 times its hydraulic diameter.