EP 0980356 A1 20000223 - PROCESS FOR RECOVERING CAPROLACTAM FROM A NEUTRALIZED REARRANGEMENT MIXTURE
Title (en)
PROCESS FOR RECOVERING CAPROLACTAM FROM A NEUTRALIZED REARRANGEMENT MIXTURE
Title (de)
VERFAHREN ZUR GEWINNUNG VOM CAPROLACTAM AUS EINER NEUTRALISIERTEN UMLAGERUNGSMISCHUNG
Title (fr)
PROCEDE POUR EXTRAIRE LE CAPROLACTAME D'UN MELANGE DE REARRANGEMENT NEUTRALISE
Publication
Application
Priority
- NL 9800216 W 19980420
- NL 1005927 A 19970429
Abstract (en)
[origin: WO9849140A1] The invention relates to a process for recovering caprolactam from a neutralized rearrangement mixture, which rearrangement mixture comprises a solution of caprolactam in water and a solution of ammonium sulphate in water, by extraction with an organic solvent in a mixer, after which the resulting organic phase is separated from the aqueous phase in a separator and caprolactam is recovered from the organic phase, the organic solvent being dispersed in the neutralized rearrangement mixture in the mixer.
IPC 1-7
IPC 8 full level
C07D 201/16 (2006.01)
CPC (source: EP KR)
C07D 201/16 (2013.01 - EP KR)
Citation (search report)
See references of WO 9849140A1
Designated contracting state (EPC)
BE DE ES IT NL
DOCDB simple family (publication)
WO 9849140 A1 19981105; AU 6856598 A 19981124; BG 103833 A 20000630; BR 9809420 A 20000613; CA 2288156 A1 19981105; CN 1253546 A 20000517; CO 5040159 A1 20010529; EA 199900982 A1 20000626; EP 0980356 A1 20000223; ID 23781 A 20000511; JP 2001522371 A 20011113; KR 20010020300 A 20010315; NL 1005927 C2 19981102; PL 336476 A1 20000619; SK 148799 A3 20000516; TW 408109 B 20001011
DOCDB simple family (application)
NL 9800216 W 19980420; AU 6856598 A 19980420; BG 10383399 A 19991025; BR 9809420 A 19980420; CA 2288156 A 19980420; CN 98804541 A 19980420; CO 98023022 A 19980427; EA 199900982 A 19980420; EP 98914149 A 19980420; ID 991289 A 19980420; JP 54684498 A 19980420; KR 19997009904 A 19991026; NL 1005927 A 19970429; PL 33647698 A 19980420; SK 148799 A 19980420; TW 87106075 A 19980421