Process for the preparation of a 2-pyrrolidone

Process for the preparation of a 2-pyrrolidone by hydrogenation of optionally substituted succinonitrile in the liquid phase in the presence of ammonia using a fixed-bed catalyst and treatment of the hydrogenated product with water, in which the hydrogenation one or more times is interrupted for reg...

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Bibliographic Details
Main Authors MEYER, PETER JOHAN NICOLAAS, NIEUWKAMP, JOHANNES GERARDUS MARIA
Format Patent
LanguageEnglish
French
German
Published 08.07.1981
Subjects
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS
GENERAL METHODS OF ORGANIC CHEMISTRY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Process for the preparation of a 2-pyrrolidone by hydrogenation of optionally substituted succinonitrile in the liquid phase in the presence of ammonia using a fixed-bed catalyst and treatment of the hydrogenated product with water, in which the hydrogenation one or more times is interrupted for regenration of the catalyst by passing liquid ammonia at 75-130 DEG C, subsequently hydrogen at 130-350 DEG C and then liquid ammonia again at 75-130 DEG C over the catalyst.
Bibliography:Application Number: EP19800201219