EP 0873169 A1 19981028 - REVERSED PHASE CHROMATOGRAPHIC PROCESS
Title (en)
REVERSED PHASE CHROMATOGRAPHIC PROCESS
Title (de)
VERFAHREN ZUR UMGEKEHRTEN PHASENCHROMATOGRAPHIE
Title (fr)
PROCEDE DE CHROMATOGRAPHIE EN PHASES INVERSEES
Publication
Application
Priority
- IE 9600077 W 19961202
- IE 950905 A 19951201
Abstract (en)
[origin: WO9720610A1] A factory scale process for the reversed phase chromatographic decolorisation, separation and purification of water-soluble nonionic contrast media compounds from solutions containing nonionic compound impurities includes the steps of passing a solution through a decoloriser chromatographic column (2) and eluting the decoloriser column (2) with solvent. The packing in the decoloriser column (2) is regenerated by passing a regenerating solvent (20) through the packing, purifying the solvent (21) in a solvent recovery plant (25) and recycling the solvent. Waste solvent (33) produced on regenerating a purification column used in a recovery process may also be recovered in the solvent recovery plant (25).
IPC 1-7
IPC 8 full level
B01D 15/08 (2006.01); C07C 231/24 (2006.01); C07C 237/46 (2006.01)
CPC (source: EP)
B01D 15/08 (2013.01); C07C 231/24 (2013.01); C07C 237/46 (2013.01)
Citation (search report)
See references of WO 9720610A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9720610 A1 19970612; AU 7707196 A 19970627; EP 0873169 A1 19981028; GB 2321860 A 19980812; GB 9811571 D0 19980729; NO 982450 D0 19980528; NO 982450 L 19980729
DOCDB simple family (application)
IE 9600077 W 19961202; AU 7707196 A 19961202; EP 96940099 A 19961202; GB 9811571 A 19961202; NO 982450 A 19980528