Separation of 2-butanol from t-amyl alcohol by extractive distil

Details Separation of 2-butanol from t-amyl alcohol by extractive distil Separation of 2-butanol from t-amyl alcohol by extractive distil

1985-10-18

1988-07-12

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 60, 203 61, 568913, B01D 340, C07C 2984

Patent

active

047568038

ABSTRACT:
2-Butanol cannot be completely removed from 2-butanol - t-amyl alcohol mixtures by distillation because of the proximitry of their boiling points. 2-Butanol can be readily removed from mixtures containing it and t-amyl alcohol by using extractive distillation in which the extractive agent is a higher boiling benzoate. Typical examples are methyl benzoate; methyl benzoate and salicylic acid; methyl benzoate, cinnamic acid and hexahydrophthalic anhydride.

REFERENCES:
patent: 2551584 (1951-05-01), Carlson et al.
patent: 2552412 (1951-05-01), Drout et al.
patent: 2559519 (1951-07-01), Smith et al.
patent: 2559520 (1951-07-01), Smith et al.
patent: 2570205 (1951-10-01), Carlson et al.
patent: 2575243 (1951-11-01), Carlson et al.
patent: 2591712 (1952-04-01), Morrell et al.
patent: 2591713 (1952-04-01), Morrell et al.
patent: 2706707 (1955-04-01), Morrell et al.

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