Method for the separation of indole

Details Method for the separation of indole Method for the separation of indole

1982-09-24

1983-09-13

Bascomb,, Jr.

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

203 29, 203 33, 203 36, 203 37, 203 38, 548469, 548508, B01D 334, C07D20904

Patent

active

044040636

ABSTRACT:
A method for the separation of indole by distilling an indole-containing reaction fluid obtained by the reaction of aniline with ethylene glycol or by the reaction of N-(.beta.-hydroxyethyl)aniline, which comprises bringing the reaction fluid into contact with a basic substance prior to and/or during the distillation. This method can prevent the deterioration of indole during the distillation procedure.

REFERENCES:
patent: 2409676 (1946-10-01), Gresham et al.
patent: 2412651 (1946-12-01), Riethof
patent: 2708653 (1955-05-01), Sisco et al.
patent: 2916496 (1959-12-01), Anderson
patent: 2916497 (1959-12-01), Murray et al.
patent: 3255205 (1966-06-01), Robinson
patent: 3886178 (1975-05-01), Petinaux et al.

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