Micro-interface reaction system and method for preparing ethylene glycol by chloroethanol method
A reaction system and interface reaction technology, applied in chemical instruments and methods, preparation of hydroxyl compounds, preparation of organic compounds, etc., can solve the problems of higher temperature requirements, increase the difficulty and cost of preparation, and achieve accelerated reaction efficiency, increase Phase boundary mass transfer area and the effect of enhancing reaction efficiency
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[0060] refer to figure 1 As shown, the micro-interface reaction system for preparing ethylene glycol from chloroethanol provided by the embodiment of the present invention mainly includes a sodium bicarbonate storage tank 101, a chloroethanol storage tank 102, a carbon dioxide inlet pipeline 103, and an ammonia gas inlet pipeline 104 , main material reactor 20 , crystallizer 30 , first recycling reactor 40 , second recycling reactor 401 , distillation tower 50 , filter 60 , rectification tower 70 , and ethylene glycol storage tank 80 . Sodium bicarbonate storage tank 101 and chloroethanol storage tank 102 are connected with main material reactor 20 in order to deliver raw material sodium bicarbonate and chloroethanol to main material reactor 20, sodium bicarbonate and chloroethanol take place in main material reactor 20 The reaction produces ethylene glycol and by-product sodium chloride, and the reaction temperature is 100°C. The ethylene glycol and sodium chloride produced ...
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