Isolation of anthracene and carbazole by melt-crystallization

Isolation of anthracene and carbazole by melt-crystallization

In a method for obtaining anthracene and carbazole and their sequential products from the anthracene oil resulting during coal tar distillation or its purification products, anthracene oil or the purification product crude anthracene is converted into a melt without adding solvent, the melt is coole...

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Bibliographische Detailangaben
Hauptverfasser: BERND VIERHAUS, FRIEDHELM ALSMEIER, DIETMAR SCHOLL, ULRICH KNIPS, JORG TALBIERSKY, SIEGFRIED GIERTLER, EDGAR FUHRMANN, BUTTNER, THOMAS, W, ALI NIKZAD, KLAUS DIALER, KONRAD STOLZENBERG, RUDOLF BISCHOF, WOLFGANG BERGINS
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Beschreibung
Zusammenfassung:In a method for obtaining anthracene and carbazole and their sequential products from the anthracene oil resulting during coal tar distillation or its purification products, anthracene oil or the purification product crude anthracene is converted into a melt without adding solvent, the melt is cooled under the crystallization point of carbazole and anthracene, the crystal product obtained is separated from the liquid phase, and the crystal product is distilled to obtain pure anthracene and pure carbazole.