FR2369595A1 - METHOD OF RECOVERING MONEY FROM PHOTOGRAPHIC MATERIALS - Google Patents

METHOD OF RECOVERING MONEY FROM PHOTOGRAPHIC MATERIALS

Info

Publication number
FR2369595A1
FR2369595A1 FR7732284A FR7732284A FR2369595A1 FR 2369595 A1 FR2369595 A1 FR 2369595A1 FR 7732284 A FR7732284 A FR 7732284A FR 7732284 A FR7732284 A FR 7732284A FR 2369595 A1 FR2369595 A1 FR 2369595A1
Authority
FR
France
Prior art keywords
washing tank
silver
film
tank
water
Prior art date
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.)
Withdrawn
Application number
FR7732284A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IERONIMO FELICE
Original Assignee
IERONIMO FELICE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IERONIMO FELICE filed Critical IERONIMO FELICE
Publication of FR2369595A1 publication Critical patent/FR2369595A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C11/00—Auxiliary processes in photography
    • G03C11/24—Removing emulsion from waste photographic material; Recovery of photosensitive or other substances

Abstract

L'invention concerne un procédé et un appareil pour le traitement d'un film photographique consistant en une couche de support plastique, une sous-couche d'adhésif et une couche organique contenant de l'argent, pour en récupérer l'argent L'appareil selon l'invention comprend : a. un réservoir de lavage 10 contenant de l'eau chaude à une température de 30 à 60 degrés C et à un pH d'environ 5 à 9, cette eau contenant au moins une enzyme choisie parmi les protéases, les amylases et les lipases; b. un réservoir de rinçage 14 contenant une solution aqueuse faible de glycol ou de soude caustique; c. un dispositif 17 de séchage pour éliminer l'eau du film; d. un dispositif 18 pour retirer l'argent du liquide dans le réservoir de lavage; et e. un dispositif de transport pour introduire le film à traiter successivement dans le réservoir de lavage 10, le réservoir de rinçage 14 et le dispositif de séchage 17.Disclosed is a method and apparatus for processing a photographic film consisting of a plastic backing layer, an adhesive underlayer and an organic silver-containing layer, to recover silver therefrom. apparatus according to the invention comprises: a. a washing tank 10 containing hot water at a temperature of 30 to 60 degrees C and at a pH of about 5 to 9, this water containing at least one enzyme selected from proteases, amylases and lipases; b. a rinsing tank 14 containing a weak aqueous solution of glycol or caustic soda; vs. a drying device 17 for removing water from the film; d. a device 18 for removing the silver from the liquid in the washing tank; summer. a transport device for introducing the film to be treated successively into the washing tank 10, the rinsing tank 14 and the drying device 17.

FR7732284A 1976-10-26 1977-10-26 METHOD OF RECOVERING MONEY FROM PHOTOGRAPHIC MATERIALS Withdrawn FR2369595A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB44484/76A GB1539610A (en) 1976-10-26 1976-10-26 Process for stripping photographic materials

Publications (1)

Publication Number Publication Date
FR2369595A1 true FR2369595A1 (en) 1978-05-26

Family

ID=10433534

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7732284A Withdrawn FR2369595A1 (en) 1976-10-26 1977-10-26 METHOD OF RECOVERING MONEY FROM PHOTOGRAPHIC MATERIALS

Country Status (4)

Country Link
DE (1) DE2748051A1 (en)
FR (1) FR2369595A1 (en)
GB (1) GB1539610A (en)
IT (1) IT1088152B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019404A1 (en) * 1979-05-02 1980-11-26 Nippon Zeon Co., Ltd. Process for producing a blending vinyl chloride resin, paste dispersion comprising such blending vinyl chloride resin, and molded articles prepared from such paste dispersion
DE3138064A1 (en) * 1980-09-26 1982-05-13 Nippon Zeon Co., Ltd., Tokyo METHOD FOR PRODUCING A PASTE-SHAPED VINYL CHLORIDE MIXED RESIN
EP0092261A1 (en) * 1982-03-16 1983-10-26 Reinhard Arnold Process and apparatus for the recovery of silver from films and fixing baths
EP0745899A1 (en) * 1994-07-30 1996-12-04 BLUE-TECH GmbH Process for making large scale transparent planar sheets from spent photographic films by physical and chemical-biological surface modification processes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226153B (en) * 1988-12-07 1992-07-22 Ilford Ltd Stripping of silver halide emulsions from photographic supports

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019404A1 (en) * 1979-05-02 1980-11-26 Nippon Zeon Co., Ltd. Process for producing a blending vinyl chloride resin, paste dispersion comprising such blending vinyl chloride resin, and molded articles prepared from such paste dispersion
DE3138064A1 (en) * 1980-09-26 1982-05-13 Nippon Zeon Co., Ltd., Tokyo METHOD FOR PRODUCING A PASTE-SHAPED VINYL CHLORIDE MIXED RESIN
EP0092261A1 (en) * 1982-03-16 1983-10-26 Reinhard Arnold Process and apparatus for the recovery of silver from films and fixing baths
EP0745899A1 (en) * 1994-07-30 1996-12-04 BLUE-TECH GmbH Process for making large scale transparent planar sheets from spent photographic films by physical and chemical-biological surface modification processes

Also Published As

Publication number Publication date
DE2748051A1 (en) 1978-04-27
IT1088152B (en) 1985-06-10
GB1539610A (en) 1979-01-31

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Legal Events

Date Code Title Description
ST Notification of lapse