| abstract |
Disclosed are a method for preparing chlorohydrins and a method for preparing epichlorohydrin using chlorohydrins prepared thereby. The disclosed method for preparing chlorohydrins reacts polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, comprises at least one combination of a series of unit operations including a first reaction step, a water removal step, and a second reaction step, in the respective order, and after mixing at least a portion of a reaction mixture discharged from at least one of the reaction steps from the plurality of reaction steps with an additional chlorinated agent, recirculates the reaction mixture to the reaction step from which the mixture was discharged. The disclosed method for preparing epichlorohydrin includes a step for reacting the chlorohydrins, which was prepared using the method for preparing chlorohydrins, with an alkaline chemical. |