Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Ube Corp
Original Assignee
Ube Industries Ltd
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Filing date
Publication date
Application filed by Ube Industries LtdfiledCriticalUbe Industries Ltd
Priority to JP5197177ApriorityCriticalpatent/JPS6021145B2/en
Publication of JPS53137983ApublicationCriticalpatent/JPS53137983A/en
Publication of JPS6021145B2publicationCriticalpatent/JPS6021145B2/en
PURPOSE: To recovery ε-caprolactam using org. solvent extraction process industrially by reextraction and distillation of the soln. contg. ε-caprolactam and acidic org. solvent obtd. by extraction of Beckmann rearrangement reaction products.
COPYRIGHT: (C)1978,JPO&Japio
JP5197177A1977-05-091977-05-09
Recovery method of ε-caprolactam
ExpiredJPS6021145B2
(en)
1-hydroxy-2-pyridinones, process for their preparation and medicines containing them, as well as intermediates formed by the preparation of 1-hydroxy-2-pyridinones