Process for producing absolute alcohol by solvent extraction and

Details Process for producing absolute alcohol by solvent extraction and Process for producing absolute alcohol by solvent extraction and

1981-10-07

1983-08-16

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 24, 203 43, 203 91, 203DIG4, 203DIG13, 203 18, 435161, 435813, 568916, 568918, C07C 2734

Patent

active

043990002

ABSTRACT:
Alcohol substantially free of water is produced by a process comprising extracting an aqueous alcohol solution with an organic solvent system containing an extractant for said alcohol thereby forming an organic solvent-alcohol phase and an aqueous phase, and vacuum distilling said organic solvent-alcohol phase thereby obtaining the product alcohol substantially free of water.

REFERENCES:
patent: 2127004 (1938-08-01), Nelson
patent: 2182550 (1939-12-01), Christensen
patent: 2440925 (1948-05-01), Boeckeler
patent: 2597009 (1952-05-01), Lobo et al.
patent: 3282797 (1966-11-01), Hammer
patent: 3292683 (1966-12-01), Buchi et al.
patent: 3351119 (1967-11-01), Rosenblad
patent: 4143066 (1979-03-01), Kalcevic
patent: 4161429 (1979-07-01), Baiel et al.
patent: 4306884 (1981-12-01), Roth
patent: 4308106 (1981-12-01), Mannfeld
patent: 4309254 (1982-01-01), Dahlstrom et al.

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