Verfahren zur Herstellung von Phthalsaeureanhydrid

Process for obtaining phthalic acid anhydride, air mixtures and naphthalene vapors in catalysts maintained in upward and downward swirling motion, characterized in that to the mixture of air and naphthalene vapors in the circuit, fresh amounts of naphthalene are added, at the same time that the phth...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LUEHDEMANN ROLF, JOHANNSEN ADOLF
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:Process for obtaining phthalic acid anhydride, air mixtures and naphthalene vapors in catalysts maintained in upward and downward swirling motion, characterized in that to the mixture of air and naphthalene vapors in the circuit, fresh amounts of naphthalene are added, at the same time that the phthalic acid anhydride, which has been formed each time, is partially separated. (Machine-translation by Google Translate, not legally binding)