FR2299667A1 - Electrolytic cell for recovery of silver from photographic chemicals - using intense agitation and high current density - Google Patents

Electrolytic cell for recovery of silver from photographic chemicals - using intense agitation and high current density

Info

Publication number
FR2299667A1
FR2299667A1 FR7502695A FR7502695A FR2299667A1 FR 2299667 A1 FR2299667 A1 FR 2299667A1 FR 7502695 A FR7502695 A FR 7502695A FR 7502695 A FR7502695 A FR 7502695A FR 2299667 A1 FR2299667 A1 FR 2299667A1
Authority
FR
France
Prior art keywords
recovery
electrolytic cell
silver
current density
high current
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Withdrawn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
FR7502695A
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.)
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
Priority to FR7502695A priority Critical patent/FR2299667A1/en
Publication of FR2299667A1 publication Critical patent/FR2299667A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02—Details of liquid circulation
    • G03D3/06—Liquid supply; Liquid circulation outside tanks
    • G03D3/065—Liquid supply; Liquid circulation outside tanks replenishment or recovery apparatus

Abstract

In an electrolytic cell for the recovery of Ag from waste photographic solns., mechanical means are provided to agitate the electrolyte in the vicinity of the cathode at a circulation speed in the order of >=1 m/sec. Pref. the agitation is provided by arms rotating relative to a cylindrical cathode. Pref. the electrolyte is contained in a circular cell. Formation of Ag2S is suppressed and current densities may be increased by a factor of 25 without its formation.
FR7502695A 1975-01-29 1975-01-29 Electrolytic cell for recovery of silver from photographic chemicals - using intense agitation and high current density Withdrawn FR2299667A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7502695A FR2299667A1 (en) 1975-01-29 1975-01-29 Electrolytic cell for recovery of silver from photographic chemicals - using intense agitation and high current density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7502695A FR2299667A1 (en) 1975-01-29 1975-01-29 Electrolytic cell for recovery of silver from photographic chemicals - using intense agitation and high current density

Publications (1)

Publication Number Publication Date
FR2299667A1 true FR2299667A1 (en) 1976-08-27

Family

ID=9150441

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7502695A Withdrawn FR2299667A1 (en) 1975-01-29 1975-01-29 Electrolytic cell for recovery of silver from photographic chemicals - using intense agitation and high current density

Country Status (1)

Country Link
FR (1) FR2299667A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201033A2 (en) 1985-04-30 1986-11-12 Konica Corporation A method for processing silver halide color photographic materials
EP0452886A2 (en) 1990-04-17 1991-10-23 Fuji Photo Film Co., Ltd. Method of processing a silver halide color photographic material
EP0465401A1 (en) * 1990-03-23 1992-01-08 Spac S.A. Apparatus for recovering silver or other precious metals dissolved in a liquid
WO1992014865A1 (en) * 1991-02-14 1992-09-03 Materials Research Pty. Ltd. Mineral recovery apparatus
EP0631185A1 (en) 1993-06-11 1994-12-28 Fuji Photo Film Co., Ltd. Method for continuously processing silver halide color photosensitive material
EP0686875A1 (en) 1994-06-09 1995-12-13 Fuji Photo Film Co., Ltd. Method of processing silver halide color photographic materials
CN109295468A (en) * 2018-10-15 2019-02-01 南京师范大学 The method for going desilver to become rusty using double-chamber microbiological fuel cell

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201033A2 (en) 1985-04-30 1986-11-12 Konica Corporation A method for processing silver halide color photographic materials
EP0465401A1 (en) * 1990-03-23 1992-01-08 Spac S.A. Apparatus for recovering silver or other precious metals dissolved in a liquid
EP0452886A2 (en) 1990-04-17 1991-10-23 Fuji Photo Film Co., Ltd. Method of processing a silver halide color photographic material
WO1992014865A1 (en) * 1991-02-14 1992-09-03 Materials Research Pty. Ltd. Mineral recovery apparatus
US5529672A (en) * 1991-02-14 1996-06-25 Material Research Pty. Ltd. Mineral recovery apparatus
EP0631185A1 (en) 1993-06-11 1994-12-28 Fuji Photo Film Co., Ltd. Method for continuously processing silver halide color photosensitive material
EP0686875A1 (en) 1994-06-09 1995-12-13 Fuji Photo Film Co., Ltd. Method of processing silver halide color photographic materials
CN109295468A (en) * 2018-10-15 2019-02-01 南京师范大学 The method for going desilver to become rusty using double-chamber microbiological fuel cell

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Legal Events

Date Code Title Description
ST Notification of lapse