Separation of 1-butanol from 2-pentanol by extractive distillati

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

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203 62, 203 63, 203 68, 203 69, 203 70, 568913, 568918, B01D 340, C07C 2984

Patent

active

054013666

ABSTRACT:
1-Butanol is difficult to separate from 2-pentanol by conventional distillation or rectification because of the proximity of their boiling points. 1-Butanol can be readily separated from 2-pentanol by extractive distillation. Effective agents are ethyl benzene, d-limonene and terpinolene.

REFERENCES:
patent: 2483246 (1949-09-01), Stribley
patent: 2575243 (1951-11-01), Carlson et al.
patent: 2575285 (1951-11-01), Carlson et al.
patent: 4756803 (1988-07-01), Berg
patent: 4969977 (1990-11-01), Berg

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