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Machine translation
1. (WO1994016362) RECOVERY OF ERYTHORBATES FROM PHOTOGRAPHIC SOLUTIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1994/016362    International Application No.:    PCT/US1993/010694
Publication Date: 21.07.1994 International Filing Date: 12.11.1993
Chapter 2 Demand Filed:    06.04.1994    
IPC:
G03C 5/31 (2006.01)
Applicants: PFIZER INC. [US/US]; 235 East 42nd Street, New York, NY 10017 (US)
Inventors: O'DONNELL, Alvin, John; (US)
Agent: RICHARDSON, Peter, C.; Pfizer Inc., 235 East 42nd Street, New York, NY 10017 (US)
Priority Data:
07/998,697 30.12.1992 US
Title (EN) RECOVERY OF ERYTHORBATES FROM PHOTOGRAPHIC SOLUTIONS
(FR) RECUPERATION D'ERYTHORBATES DE SOLUTIONS PHOTOGRAPHIQUES
Abstract: front page image
(EN)The present invention is directed to a method for the recovery of erythorbates from photographic solutions. In the disclosed method, the photographic solution is first acidified by passing it over an acidic cation exchange resin and the resultant solution is then passed over a weakly basic anion exchange resin.
(FR)Procédé de récupération d'érythorbates de solutions photographiques selon lequel on acidifie ladite solution photographique en la faisant passer sur une résine d'échange cationique acide, et on fait ensuite passer la solution qui en résulte sur une résine d'échange anionique faiblement basique.
Designated States: JP.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)