GB1396928A - Recovery of silver from waste materials - Google Patents

Recovery of silver from waste materials

Info

Publication number
GB1396928A
GB1396928A GB4034772A GB4034772A GB1396928A GB 1396928 A GB1396928 A GB 1396928A GB 4034772 A GB4034772 A GB 4034772A GB 4034772 A GB4034772 A GB 4034772A GB 1396928 A GB1396928 A GB 1396928A
Authority
GB
United Kingdom
Prior art keywords
silver
compounds
liquid
peptide
recovered
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.)
Expired
Application number
GB4034772A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1396928A publication Critical patent/GB1396928A/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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
    • 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
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/04—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with macromolecular additives; with layer-forming substances
    • G03C1/047—Proteins, e.g. gelatine derivatives; Hydrolysis or extraction products of proteins
    • G03C2001/0471—Isoelectric point of gelatine
    • 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)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Biochemistry (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • General Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Peptides Or Proteins (AREA)

Abstract

1396928 Silver compound recovery EASTMAN KODAK CO 31 Aug 1972 [1 Sept 1971] 40347/72 Heading C1A [Also in Divisions C3 and C7] Silver compounds are recovered from an aqueous gelatinous liquid containing emulsified Ag compounds, e.g. wash water from photographic emulsion manufacture, by mixing the liquid with an amino-acid forming enzyme which reacts with the gelatine to produce a peptide. The pH is adjusted to 2À5-4À2, preferably 3À5, to effect precipitation of the peptide and the associated Ag compounds. The precipitate may be passed to an incinerator where Ag is recovered as a silver-bearing ash. Suitable enzymes include trypsin, pepsin, pancreatin and ficin. The liquid is heated to 48-52‹ C. during the reaction of the enzyme.
GB4034772A 1971-09-01 1972-08-31 Recovery of silver from waste materials Expired GB1396928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPA613171 1971-09-01

Publications (1)

Publication Number Publication Date
GB1396928A true GB1396928A (en) 1975-06-11

Family

ID=3764819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4034772A Expired GB1396928A (en) 1971-09-01 1972-08-31 Recovery of silver from waste materials

Country Status (6)

Country Link
JP (1) JPS4834730A (en)
CA (1) CA983722A (en)
DE (1) DE2242700B2 (en)
FR (1) FR2151069B1 (en)
GB (1) GB1396928A (en)
IT (1) IT964430B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2618874C1 (en) * 2016-02-02 2017-05-11 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Method for silver recovery from nitrate actinoid containing solutions (versions)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5735809B2 (en) * 1975-02-18 1982-07-31
DE3209461A1 (en) * 1982-03-16 1983-09-29 Arnold, Reinhard, 6100 Darmstadt METHOD AND DEVICE FOR RECOVERING SILVER FROM FILMS AND FIXED BATHS
CA1331515C (en) * 1987-12-24 1994-08-23 Richard A. Mcleod Recovery of silver from photo sensitive materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2618874C1 (en) * 2016-02-02 2017-05-11 Федеральное государственное унитарное предприятие "Горно-химический комбинат" (ФГУП "ГХК") Method for silver recovery from nitrate actinoid containing solutions (versions)

Also Published As

Publication number Publication date
DE2242700A1 (en) 1973-03-22
FR2151069A1 (en) 1973-04-13
DE2242700B2 (en) 1973-08-16
IT964430B (en) 1974-01-21
JPS4834730A (en) 1973-05-22
CA983722A (en) 1976-02-17
FR2151069B1 (en) 1977-04-01

Similar Documents

Publication Publication Date Title
SE9300912L (en) Process for the preparation of gelatin
JPS5559886A (en) Treating method for waste water containing iron-cyano complexes
GB1361989A (en) Colour photographic light-sensitive silver halide material
GB1431288A (en) Method for removing water from a mixture comprising solid matter and water
FR2289449A1 (en) MONEY RECOVERY FROM SOLUTIONS CONTAINING SILVER SUCH AS WASTE WATER AND EXTRACTS FROM HYDROMETALLURGIC INDUSTRIES
GB1396928A (en) Recovery of silver from waste materials
GB1252383A (en)
GB1375811A (en)
Bahr et al. Methyl-mercury-chloride as a specific reagent for protein-bound sulfhydryl groups: Electron stains II
GB1399482A (en) Amplification of photographic images
GB1454708A (en) Recovery of silver from silver salts
ES8701828A1 (en) Process for producing finely divided limestone.
GB1459379A (en) Process for producing a-type calcium sulphate hemihydrate
ES455435A1 (en) Method of obtaining and using antigen from neisseria gonorrheae and products prepared therefrom
KR830004855A (en) How to prepare insulin
GB1192445A (en) Method of Recovering Silver Halide from a Waste Solution
Kim et al. Development of optimum process for continuous hydrolysis of fish skin gelatin using a three-step recycle membrane reactor
KR910009637A (en) Production Method of Vinyl-GABA
KR890016054A (en) Manufacturing method of platinum complex
GB1266821A (en)
FR2440996A1 (en) PROCESS FOR THE RECOVERY OF TIN
GB1199860A (en) Method of Recovering Silver in the Form of the Chloride from Photographic Solutions
GB1212051A (en) Photographic silver halide development process
GB1457682A (en) Process for the purification of waste water containing dyes
BE831625A (en) PROCESS FOR THE ELIMINATION AND RECOVERY OF PRECIPITATION AGENTS FROM A PRECIPITE CONTAINING PROTEIN SUBSTANCES

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees