EP 0837364 B1 20010816 - A process for the treatment and recovery of materials from the production and development of photographic and x-ray films
Title (en)
A process for the treatment and recovery of materials from the production and development of photographic and x-ray films
Title (de)
Verfahren zur Behandlung und Rückgewinnung von Materialien aus der Produktion und Entwicklung photographischer Filme und Röntgenfilme
Title (fr)
Procédé de traitement et récupération de matériaux provenant de la production et le développement de films photographiques et radiographiques
Publication
Application
Priority
IT BO960515 A 19961015
Abstract (en)
[origin: EP0837364A1] A process for the treatment and recovery of materials from the production and development of photographic and x-ray films. The process substantially includes the following operating stages: a first stage involving the shredding of the said materials; a second stage involving oxidation of the metallic silver to ionic silver; a third stage for solubilization of the silver salt in water; a fourth stage for the recovery of the metallic silver; a fifth stage for solubilization of the gelatin in an alkaline bath; a sixth stage for recovery of the gelatin; a seventh stage involving the washing, rinsing and drying of the polyester; an eighth stage for drying the polyester.
IPC 1-7
IPC 8 full level
G03C 11/24 (2006.01)
CPC (source: EP)
G03C 11/24 (2013.01)
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)
EP 0837364 A1 19980422; EP 0837364 B1 20010816; AT E204387 T1 20010915; DE 69706115 D1 20010920; DE 69706115 T2 20020425; IT 1286260 B1 19980708; IT BO960515 A0 19961015; IT BO960515 A1 19980415
DOCDB simple family (application)
EP 97830513 A 19971010; AT 97830513 T 19971010; DE 69706115 T 19971010; IT BO960515 A 19961015