Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1982-05-03
1985-04-02
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568918, C07C 2986
Patent
active
045089280
ABSTRACT:
A process for the separation of ethanol from water using solvent extraction at elevated pressures is disclosed. Separation is effected by contacting aqueous ethanol with either propylene (propene), allene (propadiene), methyl acetylene (propyne), or methyl allene (1,2-butadiene). This produces two liquid phases which separate because of the difference in their densities, and are easily drawn off as separate streams. The solvent is recovered by distillation and condensation using a heat pump to transfer heat. The ethanol and water remain in a liquid state and are substantially recovered.
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Evans J. E.
Institute of Gas Technology
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