Verfahren zum Herstellen von Rohanthracen aus Phenanthren,Anthracen und deren Homologe enthaltenden Gemischen

1,229,763. Anthracene. R TGERSWERKE A.G. 27 Jan., 1970 [12 Feb., 1969], No. 3796/70. Heading C5E. The anthracene content of an aromatic fraction containing anthracene, phenanthracene and homologues thereof (e.g. methylanthracene and methylphenanthracene) is increased by subjecting the fraction to hy...

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Hauptverfasser: GERD COLLIN,DR, HEINZ-GERHARD FRANEK,DR, RUDOLF OBERKOBUSCH,DR, MAXIMILIAN ZANDER,DR, HERBERT BUFFLEB,DR, JOHANNES TUROWSKI,DR
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Zusammenfassung:1,229,763. Anthracene. R TGERSWERKE A.G. 27 Jan., 1970 [12 Feb., 1969], No. 3796/70. Heading C5E. The anthracene content of an aromatic fraction containing anthracene, phenanthracene and homologues thereof (e.g. methylanthracene and methylphenanthracene) is increased by subjecting the fraction to hydrodealkylation (with accompanying isomerization) at 700-850 C. for 1-10 sees. in the presence of a 10-20 molar excess of hydrogen. Crude anthracene can be recovered by distillation.