PROCESS FOR DISTILLING ALKALINE CAPROLACTAM PRODUCT AT REDUCED PRESSURE

PROCESS FOR DISTILLING ALKALINE CAPROLACTAM PRODUCT AT REDUCED PRESSURE

A continuous process is provided for recovering caprolactam from aqueous caprolactam product which includes (i) caprolactam, (ii) impurities, and (iii) water by (a) adding alkali hydroxide to the aqueous caprolactam product, in an amount of not more than 100 mmol alkali hydroxide per kg of caprolact...

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Hauptverfasser: BINDELS JOSEPH JOHANNES GERARDUS, LEMMENS JOANNES ALBERTUS WILHELMUS, MOSTERT EELCO, JOOSTEN RITA DIMPHINA, GROOT ZEVERT LOUISE ANNEMARIE
Format: Patent
Sprache:eng ; pol
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CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator BINDELS JOSEPH JOHANNES GERARDUS
LEMMENS JOANNES ALBERTUS WILHELMUS
MOSTERT EELCO
JOOSTEN RITA DIMPHINA
GROOT ZEVERT LOUISE ANNEMARIE
description A continuous process is provided for recovering caprolactam from aqueous caprolactam product which includes (i) caprolactam, (ii) impurities, and (iii) water by (a) adding alkali hydroxide to the aqueous caprolactam product, in an amount of not more than 100 mmol alkali hydroxide per kg of caprolactam; (b) reacting at least part of the added alkali hydroxide to form alkali amino caproate, to obtain a caproate-enriched caprolactam product; and (c) distilling the caproate-enriched caprolactam product at reduced pressure.
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subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title PROCESS FOR DISTILLING ALKALINE CAPROLACTAM PRODUCT AT REDUCED PRESSURE
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