Separation of n-propanol from t-amyl alcohol by extractive disti

Details Separation of n-propanol from t-amyl alcohol by extractive disti Separation of n-propanol from t-amyl alcohol by extractive disti

1989-10-10

1990-06-19

Bascomb, Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 51, 203 56, 203 57, 203 61, 203 64, 203 65, 568913, B01D 340, C07C 2984

Patent

active

049351036

ABSTRACT:
n-Propanol and t-amyl alcohol cannot be separated from each other by distillation because of the proximity of their boiling points. n-Propanol can be readily separated from t-amyl alcohol by using extractive distillation in which the extractive agent is a higher boiling organic compound or a mixture of two or more of these. Typical examples of effective agents are: methyl salicylate; benzyl benzoate and hexahydrophthalic anhydride; methyl salicylate, benzoic acid and hexahydrophthalic anhydride.

REFERENCES:
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: 4710274 (1987-12-01), Berg et al.
patent: 4710275 (1987-12-01), Berg et al.
patent: 4715933 (1987-12-01), Berg et al.
patent: 4732653 (1988-03-01), Berg et al.
patent: 4756803 (1988-07-01), Berg

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