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sujiguang铁虫 (小有名气)
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[求助]
想知道具有平坦液液界面的搅拌反应器是什么样子的？？？
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这个反应器用于液液酯化非均相反应，这个容器是由Pyrex cylinder，两个玻璃涡轮搅拌器1.5cm直径，以及回流冷凝器组成，这个反应器直径7cm，高度12cm，有四个垂直挡板，0.5的宽度，90度弧度。两个搅拌棒分别在有机相和水箱搅动，为什么能够分别搅拌的，那两个相怎么接触反应的啊？？？ 原文是：All chemicals in this study were reagent grade and used without further purification. A reactor was used for experimental studies of esterification reaction and mass transfer. The reactor was a stirred vessel with a flat liquid-liquid interface. The vessel was composed of a Pyrex cylinder, two bladed glass disk turbine stirrers 1.5 cm in diameter and a reflux condenser. The vessel was 7 cm in diameter and 12 cm in length. Four vertical baffles, 0.5 cm wide, were oriented re/2 rad and fitted from 0.5 cm to 7 cm above the bottom. Two stirrers were used to agitate the organic and the aqueous phase, respectively, positioned at the middle of each phase, and set at 80, 120, and 150 rev/min. The vessel was kept in a constant temperature bath with a temperature control of ~-0.5 ~ An aqueous solution of 150 cm 3 having dissolved isopropyl alcohol was placed in the vessel, and a toluene solution of 150 cm 3 having dissolved lauric acid and Aliquat 336 was then added into the vessel slowly so as not to disturb the aqueous solution. The reaction mixture was heated to a desiredtemperature and then stirred at a given speed of agitation. Samples were withdrawn from the toluene solution at a regular interval and analyzed by gas chromatography to measure the concentrations of lauric acid and isopropyl laurate. The stoichiometric analysis for estefification was confirmed by the comparison of the measured concentrations of lauric acid with those of ester. |
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