The object of {TAIL ~ this invention} is to provide a process or method of extractive distillation that will enhance the relative volatility of isopropyl acetate from isopropanol in their separation in {HEAD ~ a rectification column} 
The object of { TAIL ~ this invention } is to provide a process or method of extractive distillation that will enhance the relative volatility of isopropyl acetate from isopropanol in their separation in { HEAD ~ a rectification column }
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