PREPARATION OF CAPROLACTAM

PREPARATION OF CAPROLACTAM

A PROCESS FOR THE PREPARATION OF CAPROLACTAM, WHEREIN (A) A MIXTURE (I) CONTAINING 6-AMINOCAPRONITRILE AND WATER IS CAUSED TO REACT IN THE VAPOR PHASE IN THE PRESENCE OF A CATALYST TO FORM A MIXTURE (II) CONTAINING CAPROLACTAM, AAMMONIA, WATER , HIGH BOILING COMPONENTS AND LOW BOILING COMPONENTS, (B...

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Bibliographische Detailangaben
Hauptverfasser: JOHANN-PETER MELDER, EBERHARD FUCHS, PETER BA?LER, ROLF-HARTMUTH FISCHER, DIETER BAUMANN
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:A PROCESS FOR THE PREPARATION OF CAPROLACTAM, WHEREIN (A) A MIXTURE (I) CONTAINING 6-AMINOCAPRONITRILE AND WATER IS CAUSED TO REACT IN THE VAPOR PHASE IN THE PRESENCE OF A CATALYST TO FORM A MIXTURE (II) CONTAINING CAPROLACTAM, AAMMONIA, WATER , HIGH BOILING COMPONENTS AND LOW BOILING COMPONENTS, (B)AMMONIA IS REMOVED FROM MIXTURE (II) TO GIVE A MIXTURE (III) COMPONENTS AND LOW BOILING COMPONENTS, (C) WATER IS REMOVED FROM MIXTURE (III) TO GIVE A MIXTURE (IV) CONTAINING CAPROLACTAM, HIGH BOILING COMPONENTS AND LOW BOILING AND (D) A SOLID V CONTAINING CAPROLACTAM IS THEN THE OBTAINED FROM THE MIXTURE (IV) BY RECRYSTALLIZATION, THE PROPOTION BY WEIGHT OF CAPROLACTAM IN SOILD (V) BEING GREATER THAN IN MIXTURE (IV).