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GB2019375A - A process for the recovery of silver - Google Patents

A process for the recovery of silver

Info

Publication number
GB2019375A
GB2019375A GB7913823A GB7913823A GB2019375A GB 2019375 A GB2019375 A GB 2019375A GB 7913823 A GB7913823 A GB 7913823A GB 7913823 A GB7913823 A GB 7913823A GB 2019375 A GB2019375 A GB 2019375A
Authority
GB
United Kingdom
Prior art keywords
silver
recovered
recovery
ions
oxidise
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.)
Granted
Application number
GB7913823A
Other versions
GB2019375B (en
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 GB2019375A publication Critical patent/GB2019375A/en
Application granted granted Critical
Publication of GB2019375B publication Critical patent/GB2019375B/en
Expired 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G5/00—Compounds of silver
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Metallic silver contained in photographic film waste is recovered by treating the film with an alkaline solution containing cyanide ions and persulphate ions, to dissolve and oxidise the silver, the silver being then recovered from the solution in a manner known per se.
GB7913823A 1978-04-21 1979-04-20 Process for the recovery of silver Expired GB2019375B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7804601A SE7804601L (en) 1978-04-21 1978-04-21 PROCEDURE FOR RECYCLING SILVER

Publications (2)

Publication Number Publication Date
GB2019375A true GB2019375A (en) 1979-10-31
GB2019375B GB2019375B (en) 1982-07-07

Family

ID=20334703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7913823A Expired GB2019375B (en) 1978-04-21 1979-04-20 Process for the recovery of silver

Country Status (2)

Country Link
GB (1) GB2019375B (en)
SE (1) SE7804601L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131008A (en) * 1982-11-13 1984-06-13 Evaporation Processes Limited A process for the treatment of X-ray films to recover the plastic film and silver therefrom
EP1750174A1 (en) 2005-08-04 2007-02-07 Heinz-Jürgen Külps Process for the recovery of materials from waste photographic material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131008A (en) * 1982-11-13 1984-06-13 Evaporation Processes Limited A process for the treatment of X-ray films to recover the plastic film and silver therefrom
EP1750174A1 (en) 2005-08-04 2007-02-07 Heinz-Jürgen Külps Process for the recovery of materials from waste photographic material
DE102005036619B4 (en) * 2005-08-04 2007-10-11 Külps, Heinz-Jürgen, Dr. Process for separating and recovering silver and plastic carrier material from photographic film material

Also Published As

Publication number Publication date
SE7804601L (en) 1979-10-22
GB2019375B (en) 1982-07-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee