TBP production process (separation of n-butanol from water)
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During the production of TBP, the separation and purification of n-butanol from water have a direct impact on both the production cost and the quality of TBP. Since the boiling point of n-butanol (117.7°C) is quite close to that of water (100°C), the distillation process is rather challenging. Do any of you have any additional suggestions?；
n-Butanol and water are azeotropic with each other and also have a certain degree of mutual solubility, making separation rather difficult. There have been discussions on this topic in the forum; please refer to it by the original poster: http://bbs.hcbbs.com/viewthread.php?tid=564107
The cyclic use of butanol has been in practice for many years, with dehydration and decolorization towers used in sequence； Either a distillation tower for dehydration and decolorization at once will do.