EP0092261A1 - Procédé et appareil pour la récupération de l'argent des films et de bains de fixage - Google Patents

Procédé et appareil pour la récupération de l'argent des films et de bains de fixage Download PDF

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Publication number
EP0092261A1
EP0092261A1 EP83200267A EP83200267A EP0092261A1 EP 0092261 A1 EP0092261 A1 EP 0092261A1 EP 83200267 A EP83200267 A EP 83200267A EP 83200267 A EP83200267 A EP 83200267A EP 0092261 A1 EP0092261 A1 EP 0092261A1
Authority
EP
European Patent Office
Prior art keywords
film
solution
drum
washing drum
furnace
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Withdrawn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
EP83200267A
Other languages
German (de)
English (en)
Inventor
Reinhard Arnold
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0092261A1 publication Critical patent/EP0092261A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the method according to the invention and the device for carrying it out avoids the disadvantages of known methods. It can be used for all commercially available film materials such as X-ray films, reprofilms, industrial films etc.
  • the procedure in the apparatus is as follows.
  • the enzyme solution, including the film is pumped into a washing drum, where the film is washed out, the washed film remains in the washing drum, and the silver-containing solution separated from the film goes into a collecting container under the washing drum brought into intermediate storage containers by means of a pump. Motor-driven agitators are provided in these containers, which keep this solution in motion.
  • the solution now passes into a centrifuge, whereby a suitable pump is provided for the loading. After centrifugation has ended, the Now, the silver-containing, puncture-proof mass is fed into a drying cupboard The material is melted in the melting furnace with the addition of a suitable melt. Then it is poured into bars.
  • the material After drying, the material is put into an ashing furnace Fig. 9. After ashing, the material is melted in the melting furnace Fig. 10 with the addition of a suitable melting agent. Then it is poured into bars (Fig. 11 with table).
  • the washed with this process Footage can be sold again for processing.
  • One kilo of the washed film material has a higher calorific value than 1. liter of heating oil.
  • the chimney exhaust air is used for heating the detachment container Fig.
  • a copper pipe is wound and insulated around the entire length of the stovepipe. This copper line is led to the detachment containers and then back to the stovepipe. The line is filled with water and a circulating pump is connected. This means that there is a sufficient heating circuit. This is an economical and effective heating of the detachment containers, since the drying cabinet Fig. 8 is constantly in operation during production.
  • Fixing baths can also be processed with this system.
  • the fixer is placed in the intermediate storage tank Fig.6 and a suitable flocculant is added. Then the same processing as the silver-containing solution when recovering from film material. Sequence: detachment container, intermediate storage container, washing drum, drying cabinet, ashing, heating of the detachment container.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
EP83200267A 1982-03-16 1983-02-15 Procédé et appareil pour la récupération de l'argent des films et de bains de fixage Withdrawn EP0092261A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3209461 1982-03-16
DE19823209461 DE3209461A1 (de) 1982-03-16 1982-03-16 Verfahren und vorrichtung zur rueckgewinnung von silber aus filmen und fixierbaedern

Publications (1)

Publication Number Publication Date
EP0092261A1 true EP0092261A1 (fr) 1983-10-26

Family

ID=6158349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200267A Withdrawn EP0092261A1 (fr) 1982-03-16 1983-02-15 Procédé et appareil pour la récupération de l'argent des films et de bains de fixage

Country Status (2)

Country Link
EP (1) EP0092261A1 (fr)
DE (1) DE3209461A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU593303B2 (en) * 1985-11-19 1990-02-08 Konishiroku Photo Industry Co., Ltd. Method for evaporation treatment of photographic processing waste solution and device therefor
GB2283335A (en) * 1993-10-28 1995-05-03 Du Pont Silver recovery from photographic materials
WO2010094099A1 (fr) * 2009-02-19 2010-08-26 Prado Sergio Système de production permanente d'une matière première renouvelable pour la fabrication d'éléments de construction et de bâtiments durables

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR633685A (fr) * 1926-09-06 1928-02-02 Procédé pour le lavage des films cinématographiques, pellicules photographiques, etc. avec récupération de métal argent
US3647422A (en) * 1970-07-13 1972-03-07 Horizons Research Inc Recovery of silver, polyester and amino acids from processed film
FR2151069A1 (fr) * 1971-09-01 1973-04-13 Eastman Kodak Co
US3748123A (en) * 1971-07-14 1973-07-24 Bakker Dev Corp Process for metal recovery
DE2554928A1 (de) * 1975-12-06 1977-10-13 Roger Noero Verfahren zur rueckgewinnung von silber
FR2369595A1 (fr) * 1976-10-26 1978-05-26 Ieronimo Felice Procede de recuperation de l'argent de materiaux photographiques
FR2426927A1 (fr) * 1978-05-26 1979-12-21 Sicaworms Procede de recuperation de l'argent contenu dans les films photographiques et cinematographiques et dispositif de mise en oeuvre de ce procede
US4279644A (en) * 1980-06-06 1981-07-21 E. I. Du Pont De Nemours And Company Recovery of silver from photographic processor effluents

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR633685A (fr) * 1926-09-06 1928-02-02 Procédé pour le lavage des films cinématographiques, pellicules photographiques, etc. avec récupération de métal argent
US3647422A (en) * 1970-07-13 1972-03-07 Horizons Research Inc Recovery of silver, polyester and amino acids from processed film
US3748123A (en) * 1971-07-14 1973-07-24 Bakker Dev Corp Process for metal recovery
FR2151069A1 (fr) * 1971-09-01 1973-04-13 Eastman Kodak Co
DE2554928A1 (de) * 1975-12-06 1977-10-13 Roger Noero Verfahren zur rueckgewinnung von silber
FR2369595A1 (fr) * 1976-10-26 1978-05-26 Ieronimo Felice Procede de recuperation de l'argent de materiaux photographiques
FR2426927A1 (fr) * 1978-05-26 1979-12-21 Sicaworms Procede de recuperation de l'argent contenu dans les films photographiques et cinematographiques et dispositif de mise en oeuvre de ce procede
US4279644A (en) * 1980-06-06 1981-07-21 E. I. Du Pont De Nemours And Company Recovery of silver from photographic processor effluents

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MANUFACTURING TECHNOLOGY NOTE, U.S. Army Materiel Development and Readiness Command, Juli 1979, Office of Manufacturing Technology, Alexandria Virginia, USA *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU593303B2 (en) * 1985-11-19 1990-02-08 Konishiroku Photo Industry Co., Ltd. Method for evaporation treatment of photographic processing waste solution and device therefor
GB2283335A (en) * 1993-10-28 1995-05-03 Du Pont Silver recovery from photographic materials
GB2283335B (en) * 1993-10-28 1997-11-19 Du Pont Silver recovery from photosensitive materials
WO2010094099A1 (fr) * 2009-02-19 2010-08-26 Prado Sergio Système de production permanente d'une matière première renouvelable pour la fabrication d'éléments de construction et de bâtiments durables

Also Published As

Publication number Publication date
DE3209461A1 (de) 1983-09-29

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 19840209

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19850522