PE791A1 - SILVER RECOVERY FROM USED PHOTOGRAPHIC SOLUTIONS - Google Patents

SILVER RECOVERY FROM USED PHOTOGRAPHIC SOLUTIONS

Info

Publication number
PE791A1
PE791A1 PE1990175990A PE17599090A PE791A1 PE 791 A1 PE791 A1 PE 791A1 PE 1990175990 A PE1990175990 A PE 1990175990A PE 17599090 A PE17599090 A PE 17599090A PE 791 A1 PE791 A1 PE 791A1
Authority
PE
Peru
Prior art keywords
silver recovery
silver
used photographic
photographic solutions
fixing solution
Prior art date
Application number
PE1990175990A
Other languages
Spanish (es)
Inventor
Thomas H Etsell
Wasyl Kunda
Original Assignee
Univ Alberta
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 Univ Alberta filed Critical Univ Alberta
Publication of PE791A1 publication Critical patent/PE791A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • C22B11/042—Recovery of noble metals from waste materials
    • C22B11/046—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
    • 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
    • G03C5/3952—Chemical, mechanical or thermal methods, e.g. oxidation, precipitation, centrifugation
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Cosmetics (AREA)

Abstract

CONSISTE EN INTRODUCIR UN REACTIVO DE HIDROSULFURO EN LA SOLUCION FIJADORA CON CONTENIDO DE PLATA PARA PRECIPITAR EL SULFURO DE PLATA, MIENTRAS SE MANTIENEN CONSTANTES LOS NIVELES DE PH Y DE LIOSULFATO CON EL FIN DE UTILIZARLA NUEVAMENTE. EL PRECIPITADO SE AISLA DE LA SOLUCION FIJADORA PRA EXTRAER LA PLATA DE ESTA Y PERMITIR SU RECICLAJEIT CONSISTS OF INTRODUCING A HYDROSULFIDE REAGENT IN THE SILVER CONTENT FIXING SOLUTION TO PRECIPITATE THE SILVER SULFIDE, WHILE THE PH AND LIOSULPHATE LEVELS ARE CONTAINED CONSTANTLY IN ORDER TO USE IT AGAIN. THE PRECIPITATED IS ISOLATED FROM THE FIXING SOLUTION TO EXTRACT THE SILVER FROM IT AND ALLOW ITS RECYCLING

PE1990175990A 1989-10-12 1990-10-11 SILVER RECOVERY FROM USED PHOTOGRAPHIC SOLUTIONS PE791A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2000527 CA2000527A1 (en) 1989-10-12 1989-10-12 Silver recovery from spent photographic solutions

Publications (1)

Publication Number Publication Date
PE791A1 true PE791A1 (en) 1991-01-26

Family

ID=4143307

Family Applications (1)

Application Number Title Priority Date Filing Date
PE1990175990A PE791A1 (en) 1989-10-12 1990-10-11 SILVER RECOVERY FROM USED PHOTOGRAPHIC SOLUTIONS

Country Status (22)

Country Link
EP (1) EP0565518B1 (en)
JP (1) JPH05506269A (en)
CN (1) CN1036029C (en)
AP (1) AP210A (en)
AT (1) ATE118556T1 (en)
AU (1) AU642102B2 (en)
BR (1) BR9007704A (en)
CA (1) CA2000527A1 (en)
DE (1) DE69017052T2 (en)
EG (1) EG19094A (en)
FI (1) FI921617A0 (en)
HU (1) HUT66894A (en)
IE (1) IE903642A1 (en)
IL (1) IL95847A (en)
MA (1) MA21972A1 (en)
NZ (1) NZ235620A (en)
PE (1) PE791A1 (en)
PL (1) PL165799B1 (en)
PT (1) PT95565A (en)
WO (1) WO1991005882A1 (en)
YU (1) YU190090A (en)
ZA (1) ZA907735B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616963B (en) * 2011-07-08 2014-12-17 华东理工大学 Photocatalytic treatment method of sensitive material waste
US20230136500A1 (en) 2021-10-28 2023-05-04 Hewlett Packard Enterprise Development Lp Location detection with gnss and device range measurements
US20230403751A1 (en) 2022-06-13 2023-12-14 Hewlett Packard Enterprise Development Lp Split multi-link system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2481203A (en) 1946-11-29 1949-09-06 Maurice Y Nicole Gothic arch tracing device
US3082079A (en) * 1960-06-15 1963-03-19 Eastman Kodak Co Silver recovery from photographic fixing solutions
US3634088A (en) * 1970-02-02 1972-01-11 Eastman Kodak Co Regeneration of blix solutions used in photographic processing
BE790374A (en) * 1971-10-22 1973-02-15 Fuji Photo Film Co Ltd PROCESS FOR REGENERATING A BLEACHING -FIXING SOLUTION FOR COLOR PHOTOGRAPHIC PROCESSING
BE795767A (en) * 1972-03-02 1973-08-22 Agfa Gevaert Nv METHOD OF REGENERATING EXHAUSTED PHOTOGRAPHIC SILVER BLEACHING BATHS
JPS6345121A (en) * 1986-08-12 1988-02-26 Nobuaki Terai Precipitation of silver sulfide with sodium hydrosulfide nahs and precipitation of the same with ammonium sulfide (nh4)2s
DE3718583A1 (en) * 1987-06-03 1988-12-22 Michael Bonk Process for recovering silver from fixing salt solutions by sulphide precipitation
DK163297C (en) * 1990-02-08 1992-07-06 Eskofot As PROCEDURE AND APPARATUS FOR THE REMOVAL OF SILVER IN THE FORM OF SULFUL SULFIDE FROM A PHOTOGRAPHIC LIQUID BY IRRATION AND EXPRESSION

Also Published As

Publication number Publication date
CA2000527A1 (en) 1991-04-12
EP0565518A1 (en) 1993-10-20
CN1050933A (en) 1991-04-24
IE903642A1 (en) 1991-04-24
DE69017052T2 (en) 1995-09-21
FI921617A (en) 1992-04-10
JPH05506269A (en) 1993-09-16
NZ235620A (en) 1992-11-25
CN1036029C (en) 1997-10-01
WO1991005882A1 (en) 1991-05-02
PL165799B1 (en) 1995-02-28
FI921617A0 (en) 1992-04-10
AP210A (en) 1992-08-26
MA21972A1 (en) 1991-07-01
AU6501090A (en) 1991-05-16
IL95847A (en) 1998-02-22
ZA907735B (en) 1992-05-27
EP0565518B1 (en) 1995-02-15
PT95565A (en) 1991-08-14
YU190090A (en) 1993-11-16
BR9007704A (en) 1992-07-21
IL95847A0 (en) 1991-06-30
EG19094A (en) 1994-09-29
ATE118556T1 (en) 1995-03-15
HUT66894A (en) 1995-01-30
AP9000221A0 (en) 1991-01-31
HU9201241D0 (en) 1992-09-28
AU642102B2 (en) 1993-10-07
DE69017052D1 (en) 1995-03-23

Similar Documents

Publication Publication Date Title
FR2588747B1 (en) ARTIFICIAL VALVE FIXER
DE3667881D1 (en) GLASS-LIKE PHOSPHOROXIDE SULFIDE SOLID-LITHIUM ELECTROLYTE.
NO863070L (en) REDUCTION OF INTERFLECTION LIGHT IN HOLOGRAMS.
KR890017834U (en) Floodlight's lamp floating mechanism
PE791A1 (en) SILVER RECOVERY FROM USED PHOTOGRAPHIC SOLUTIONS
DE3576438D1 (en) SODIUM SULFUR CELLS AND THEIR PRODUCTION.
DE3784150D1 (en) LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL.
DE3776189D1 (en) BIAXIAL STRETCHED FILM OR FILM MADE OF POLYPARAPHENYLENE SULFIDE.
ES552028A0 (en) A PROCEDURE FOR RECOVERING SULFIDE MINERALS, WITH METAL CONTENT OR SULFURED EXIDO MINERALS WITH METAL CONTENT FROM A MINE
DE3771668D1 (en) ACTIVABLE CELL.
DE3781311T2 (en) LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL.
DE3871240D1 (en) ACTIVABLE LITHIUM / THIONYL CHLORIDE OR LITHIUM / SULFURYL CHLORIDE CELL.
DE3586555T2 (en) LIGHT SENSITIVE PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL.
DE3577252D1 (en) SODIUM SULFUR BATTERIES.
BE883800A (en) ALUMINATE EMITTING LUMINOPHORE IN THE ULTRAVIOLET AREA AND FLUORESCENT SOLAR TANNING LAMPS USING THE SAME
DE3781380T2 (en) LIGHT SENSITIVE, PHOTOGRAPHIC SILVER HALOGENIDE MATERIAL.
DE3769941D1 (en) ACTIVABLE CELL.
ECSP900678A (en) SILVER RECOVERY OF SPENT SILVER PHOTOGRAPHIC SOLUTIONS
BE874312A (en) SOLUTION CONTAINING SELENOMETHIONINE-75 SE AND A THIOL AS A STABILIZER
DE59006967D1 (en) DATA CARRIER.
ES516182A0 (en) "A METHOD OF CONVERSION OF A WATER SULFIDE ION IN SULPHATE".
DE3581462D1 (en) TANNING DEVELOPMENT IN LOW SILVER PHOTOGRAPHY.
ES512317A0 (en) SULFIDE CONTAINING WATER TREATMENT PROCEDURE.
BE891054A (en) LIGHTING INSTALLATION IN UNDERGROUND MINE
DE68901339D1 (en) NEGATIVE SILVER HALOGEN EMULSION CONTAINING CERTAIN MONOMETHINE DERIVATIVES.

Legal Events

Date Code Title Description
FD Application declared void or lapsed