Process for separating indole in refined form

Details Process for separating indole in refined form Process for separating indole in refined form

1989-06-08

1990-10-30

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20908

Patent

active

049669788

ABSTRACT:
Described herein is a process for separating solid indole in refined form with an extremely high degree of purity from a mixture containing more than 50 wt % of indole, in which a pressure of 700-2500 atms is applied to the mixture in a high pressure vessel, and solid-liquid separation is effected continuedly under pressurized state with an initial temperature in the range of 50.degree.-65.degree. C.

REFERENCES:
patent: 2982771 (1961-05-01), Bond, Jr.
patent: 4769474 (1988-09-01), Miyahara et al.

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