Separation of ethyl acetate from ethanol by azeotropic distillation
OwnerLloyd Berginventor
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Abstract
Ethyl acetate cannot be separated from ethanol by distillation or rectification because of the closeness of their boiling points. Ethyl acetate is readily separated from ethanol by azeotropic distillation. Effective agents are ethyl ether, methyl formate and cyclohexane.
Claims1
A method for recovering ethyl acetate from a mixture of ethyl acetate and ethanol which comprises distilling a mixture of ethyl acetate and ethanol in the presence of an azeotrope forming agent, recovering the ethyl acetate and the azeotrope forming agent as overhead product and obtaining the ethanol as bottoms product, wherein said azeotrope forming agent consists of one material selected from the group consisting of methyl formate, 2,2-dimethyl butane, hexane, cyclopentane, 2,2,4-trimethylpentane, t-butyl methyl ether, petroleum ether, dimethoxymethane and 4-methyl-2-pentanone.
Dependencies are inferred from the claim text.