Shandong styrene | styrene | Dongshun Chemical (View)

 Styrene Method: in air-fractionation unit 500mL reaction flask, add powdered cinnamic acid (2) 148g (1.0mol), styrene-use hydroquinone 2g, a few grains of zeolite. To accept flask 0.5g of hydroquinone. The reaction flask was heated by electric sets, until the beginning of distillate styrene. Adjust heat styrene, so fractionating column top temperature is kept at about 120 ℃, should not exceed 130 ℃. When the reaction is stopped when there is no longer distilled styrene, about 4 ~ 5h. The distillate was added 100mL of water, heating the distillation, water was distilled out together with the co-styrene, until no oil distillate. Separation of oil GB styrene, styrene Shandong anhydrous calcium chloride drying, vacuum distillation, collecting 44 ~ 46 ℃ / 5.3kPa of distillate, styrene (1) 40g, yield 38%. Total synthesis of ethylbenzene oxidation of ethylbenzene to styrene oxidation of ethylbenzene hydroperoxide too, generated by the reaction of methyl benzyl alcohol and propylene, and then dehydrated to styrene. Reaction is as follows: The advantage of this method is the production of styrene per tonne, while propylene oxide may cogeneration 0.4t. It does not need that kind of high temperature dehydrogenation and avoid pollution problems epichlorohydrin production of propylene oxide. But the reaction of complex, multi-product, process longer than the dehydrogenation of ethylbenzene consumption is high. Shandong styrene | styrene | Dongshun Chemical (View) provided by Jinan East-Chemical Co., Ltd. Jinan East-Chemical Co., Ltd. (dongshunhuagong.com) is a professional, "styrene acrylate, butyl glycol, cyclohexane, epichlorohydrin" company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "East along the" brand has a good reputation. We adhere to the "service first, customers first" principle, so that the East-Chemical won the trust of customers in all chemical products, and establish a good corporate image. Special Note: This information is for reference pictures and information, please contact us to obtain the most accurate information, thank you!