Gewinnung von Anthracen und Carbazol durch Schmelzkristallisation

摘要

The invention relates to a method for obtaining anthracene and carbazole, in addition to the resultant products thereof, from anthracene oil arising from the distillation of coal tar or the purification products thereof. Anthracene oil or the purification product raw anthracene is transformed into a melt without the addition of a solvent. The melt is cooled to below the crystallization point of carbazole and anthracene. The crystal product thus obtained is separated from the liquid phase and the crystal product is distilled in order to obtain pure anthracene and pure carbazole.