GB2004301A - Electrolytic recovery of silver from fixing bath - Google Patents

Electrolytic recovery of silver from fixing bath

Info

Publication number
GB2004301A
GB2004301A GB7835953A GB7835953A GB2004301A GB 2004301 A GB2004301 A GB 2004301A GB 7835953 A GB7835953 A GB 7835953A GB 7835953 A GB7835953 A GB 7835953A GB 2004301 A GB2004301 A GB 2004301A
Authority
GB
United Kingdom
Prior art keywords
silver
fixing
bath
fixing bath
concentration
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Withdrawn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
GB7835953A
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.)
ACCESSORIO RADIOGRAFICO SpA
Original Assignee
ACCESSORIO RADIOGRAFICO SpA
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 ACCESSORIO RADIOGRAFICO SpA filed Critical ACCESSORIO RADIOGRAFICO SpA
Publication of GB2004301A publication Critical patent/GB2004301A/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Withdrawn legal-status Critical Current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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/395—Regeneration of photographic processing agents other than developers; Replenishers therefor
    • G03C5/3954—Electrical methods, e.g. electroytic silver recovery, electrodialysis
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

In a radiophotographic method for radiographic films substances rich in silver are recovered from a fixing bath in parallel with a fixing step so as to keep the silver halide concentration in the bath below the saturation concentration, the treated fixing bath being then recycled to the fixing step. The apparatus for carrying out the method comprises a development station (1) and a fixing station (2) for the radiographic films. The apparatus further includes an economiser-recuperator unit (4) to recover the silver contained in the fixing bath so as to maintain in the fixing bath a silver concentration lower than the saturation concentration of the bath. <IMAGE>
GB7835953A 1977-09-14 1978-09-07 Electrolytic recovery of silver from fixing bath Withdrawn GB2004301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2753777A IT1085395B (en) 1977-09-14 1977-09-14 IMPROVED APPARATUS AND PHOTORADIOGRAPHIC PROCEDURE

Publications (1)

Publication Number Publication Date
GB2004301A true GB2004301A (en) 1979-03-28

Family

ID=11221860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835953A Withdrawn GB2004301A (en) 1977-09-14 1978-09-07 Electrolytic recovery of silver from fixing bath

Country Status (4)

Country Link
DE (1) DE2838784A1 (en)
FR (1) FR2403583A1 (en)
GB (1) GB2004301A (en)
IT (1) IT1085395B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526049A1 (en) * 1982-04-30 1983-11-04 Martineau Sa Expl Ets DEVICE FOR THE CONTINUOUS ELECTROLYTIC RECOVERY OF METALS CONTAINED IN TREATMENT BATHS OF MACHINES FOR DEVELOPING SENSITIVE SURFACES
WO1991009159A1 (en) * 1989-12-11 1991-06-27 Eastman Kodak Company Method for recovering silver from a photographic fixing solution

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240433A1 (en) * 1992-12-02 1994-06-09 Kodak Ag Electrolytic silver recovery from film and picture developing unit - determines silver vol in fixing bath from width and length and density of material to control electrolyte current

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526049A1 (en) * 1982-04-30 1983-11-04 Martineau Sa Expl Ets DEVICE FOR THE CONTINUOUS ELECTROLYTIC RECOVERY OF METALS CONTAINED IN TREATMENT BATHS OF MACHINES FOR DEVELOPING SENSITIVE SURFACES
EP0094275A1 (en) * 1982-04-30 1983-11-16 Jean Pierre Martineau Apparatus for the continuous electrolytic recovery of metals from the processing baths of machines for developing sensitive surfaces
WO1991009159A1 (en) * 1989-12-11 1991-06-27 Eastman Kodak Company Method for recovering silver from a photographic fixing solution
US5300199A (en) * 1989-12-11 1994-04-05 Eastman Kodak Company Method for recovering silver from a photographic fixing solution

Also Published As

Publication number Publication date
DE2838784A1 (en) 1979-03-22
IT1085395B (en) 1985-05-28
FR2403583A1 (en) 1979-04-13

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)