13674-84-5

75-56-9

13674-84-5

In a 5000 L stirred reactor equipped with a solid feeder, 4600 kg of phosphorous trichloride was first added, followed by 15 kg of anhydrous aluminum trichloride as a catalyst through the solid feeder and stirred at room temperature until complete dissolution. The propylene oxide was continuously dewatered by passing it through a dewatering tower equipped with a dewatering agent, calcium oxide, and then collected in a 10,000 L metering tank, and the water content was measured to be 28 PPM. 5,300 kg of the dewatered propylene oxide was added to the reactor and mixed with the trichlorophosphorus solution. The reaction temperature was controlled to be 65°C and the feed rate was adjusted to maintain the weight ratio of phosphorous trichloride to propylene oxide at 1:1.152. After the materials were added proportionally, the reaction was held at 65°C until the reaction was completed. At the end of the reaction, the crude product TCPP 16000L was transferred to a washing tank, 5000kg of 1% sodium hydroxide solution was added, stirred at 70℃ for 1 hour, and the lower layer was removed after standing and stratifying. Then add 5000kg of deionized water, stir for 1 hour at 70°C, and remove the water layer after static stratification. The washed TCPP crude product was transferred to a dehydration kettle for heating vacuum dehydration. Finally, 9715 kg of product was obtained by filtration with a yield of 98.1%. After GC analysis, the ether content in TCPP was 226PPM.