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Separation of isopropanol from isopropyl acetate by extractive distillation
Separation of isopropanol from isopropyl acetate by extractive distillation
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机译:通过萃取蒸馏从乙酸异丙酯中分离异丙醇
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摘要
Isopropanol cannot be completely removed from isopropanol- isopropyl acetate-water mixtures by distillation because of the presence of the minimum ternary azeotrope. Isopropanol can be readily removed from mixtures containing it, isopropyl acetate and water by using extractive distillation in which the extractive agent is a higher boiling ester of phthalic acid. Typical examples of effective agents are diisooctyl phthalate and methyl benzoate, dibutyl phthalate, methyl benzoate and nitromethane.
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