Separation of isopropanol from 2-butanone by extractive distilla

Distillation: processes – separatory – Adding material to distilland except water or steam per se – Organic compound

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203 58, 203 59, 203 60, 203 62, 203 63, 203 64, 203 65, 568410, 568913, B01D 340, C07C 3110, C07C 4583

Patent

active

054704430

ABSTRACT:
Isopropanol is difficult to separate from 2-butanone by conventional distillation or rectification because of the proximity of their boiling points. Isopropanol can be readily separated from 2-butanone by extractive distillation. Effective agents are o-cresol, ethylene glycol and nitroethane.

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patent: 2559519 (1951-07-01), Smith et al.
patent: 2570205 (1951-10-01), Carlson et al.
patent: 2575285 (1951-11-01), Carlson et al.
patent: 2583412 (1952-01-01), Carlson et al.
patent: 2591712 (1952-04-01), Morrell et al.
patent: 2591713 (1952-04-01), Morrell et al.
patent: 2617757 (1952-11-01), Michael

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