Method for producing epoxy chloropropane
A technology of epichlorohydrin and chloropropene, applied in the direction of organic chemistry, which can solve the problems of explosion hazard and lower reaction conversion rate
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Embodiment 1
[0014] Add 3-chloropropene and catalyst to the reactor first, stir and heat up to the bubble point temperature, after about 44°C, then add hydrogen peroxide at a uniform speed for reaction, the feeding time is 0.5h, the total reaction time is 1h, the reaction heat in the reaction process is passed through the organic steam The condensate is carried away by reflux. Feed mass ratio, chloropropene: 50% hydrogen peroxide: catalyst is 1: 0.3: 0.11.
[0015] During the reaction process, the highest gas phase oxygen concentration is 4.4%, the conversion rate of allyl chloride is 41.6%, and the invalid decomposition rate of hydrogen peroxide is 1.4%.
Embodiment 2
[0017] Add 3-chloropropene and catalyst to the reactor first, stir and heat up to the bubble point temperature, after about 46°C, then add hydrogen peroxide at a uniform speed for reaction, the feeding time is 1h, the total reaction time is 1.5h, the reaction heat in the reaction process is passed through the organic steam The condensate is carried away by reflux. Feed mass ratio, chloropropene: 50% hydrogen peroxide: catalyst is 1: 0.3: 0.11.
[0018] During the reaction process, the highest gas phase oxygen concentration is 1.9%, the conversion rate of allyl chloride is 41.4%, and the invalid decomposition rate of hydrogen peroxide is 1.8%.
Embodiment 3
[0020] Add 3-chloropropene, catalyst and hydrogen peroxide together into the reactor at room temperature, stir and heat up to the bubble point temperature, about 44°C-46°C, and the reaction time is 1h. Feed mass ratio, chloropropene: 50% hydrogen peroxide: catalyst is 1: 0.3: 0.11.
[0021] During the reaction process, the highest gas phase oxygen concentration is 22.8%, the conversion rate of allyl chloride is 40.6%, and the invalid decomposition rate of hydrogen peroxide is 3.8%.
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