GB1287671A - Improved silver recovery process - Google Patents

Improved silver recovery process

Info

Publication number
GB1287671A
GB1287671A GB3282470A GB3282470A GB1287671A GB 1287671 A GB1287671 A GB 1287671A GB 3282470 A GB3282470 A GB 3282470A GB 3282470 A GB3282470 A GB 3282470A GB 1287671 A GB1287671 A GB 1287671A
Authority
GB
United Kingdom
Prior art keywords
silver
mixture
recovery process
july
nitric acid
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
GB3282470A
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.)
Battelle Development Corp
Original Assignee
Battelle Development Corp
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 Battelle Development Corp filed Critical Battelle Development Corp
Publication of GB1287671A publication Critical patent/GB1287671A/en
Expired legal-status Critical Current

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
    • C22B11/02—Obtaining noble metals by dry processes
    • C22B11/021—Recovery of noble metals from waste materials
    • C22B11/025—Recovery of noble metals from waste materials from manufactured products, e.g. from printed circuit boards, from photographic films, paper, or baths
    • 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
    • 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
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/009—General processes for recovering metals or metallic compounds from spent catalysts
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

1287671 Silver salts BATTELLE DEVELOPMENT CORP 7 July 1970 [25 July 1969] 32824/70 Heading C1A [Also in Division C7] Silver is recovered from its mixture with organic materials by pyrolysis to form a silvercarbon-ash mixture (see Divisions C6-C7) and this mixture is burnt in air to remove the carbon. In an example the silver-ash residue was leached in nitric acid and boiled, and the solution and solid made alkaline with ammonium hydroxide. The silver was precipitated as silver sulphide and then converted to nitrate by boiling with nitric acid.
GB3282470A 1969-07-25 1970-07-07 Improved silver recovery process Expired GB1287671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84509169A 1969-07-25 1969-07-25

Publications (1)

Publication Number Publication Date
GB1287671A true GB1287671A (en) 1972-09-06

Family

ID=25294368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3282470A Expired GB1287671A (en) 1969-07-25 1970-07-07 Improved silver recovery process

Country Status (5)

Country Link
US (1) US3632336A (en)
JP (1) JPS4839130B1 (en)
DE (1) DE2036841C3 (en)
FR (1) FR2055634A5 (en)
GB (1) GB1287671A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358874A (en) * 1999-12-08 2001-08-08 Eastman Kodak Co Obtaining ultra-pure silver from crude silver halide matrix

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899323A (en) * 1971-11-01 1975-08-12 Battelle Development Corp Silver recovery process
US4123500A (en) * 1974-03-01 1978-10-31 Johnson, Matthey & Co., Limited Recovery of precious metals by oxidation in the aqueous phase of associated carbonaceous support material
US3929466A (en) * 1974-06-28 1975-12-30 Gaf Corp Recovery of silver from silver salts
US4118220A (en) * 1976-07-19 1978-10-03 Nichols Engineering & Research Corp. Method for treating waste material
DE3329042A1 (en) * 1983-08-11 1985-02-28 Sonnenberg, Heinrich, 3200 Hildesheim METHOD FOR RECOVERY OF COLORED AND PRECIOUS METALS FROM CARBON-MATERIAL MATERIALS
US5979033A (en) * 1998-05-05 1999-11-09 Cleanevi' Engineering Consultant Co., Ltd. Method of recycling waste printed circuit boards
US6089479A (en) * 1999-09-28 2000-07-18 Cleanenv' Engineeering Consultant Co., Ltd. Method for treating waste printed circuit boards with molten mixture of inorganic salts
EP1504077B1 (en) * 2002-04-29 2006-08-02 Abb Research Ltd. A method of metal parts recovery from waste products or semi-finished products of electric power or electronic industries
CN101273147B (en) * 2005-09-27 2011-05-18 W.C.贺利氏股份有限公司 Method and device for combusting precious metal-containing materials
DE102011014505A1 (en) 2011-03-18 2012-09-20 Heraeus Precious Metals Gmbh & Co. Kg Process for the recovery of precious metal from functionalized noble metal-containing adsorption materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2131072A (en) * 1937-04-09 1938-09-27 Eastman Kodak Co Silver recovery
US2218250A (en) * 1938-08-19 1940-10-15 Eastman Kodak Co Silver recovery
US2944886A (en) * 1958-08-21 1960-07-12 Eastman Kodak Co Reduction of silver loss in burning photographic waste
US3334995A (en) * 1961-07-31 1967-08-08 Minnesota Mining & Mfg Process of precipitating silver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2358874A (en) * 1999-12-08 2001-08-08 Eastman Kodak Co Obtaining ultra-pure silver from crude silver halide matrix
US6290747B1 (en) 1999-12-08 2001-09-18 Eastman Kodak Company Conversion of impure silver halide to ultra-pure silver metal
GB2358874B (en) * 1999-12-08 2004-05-05 Eastman Kodak Co Conversion of impure silver halide to ultra-pure silver metal

Also Published As

Publication number Publication date
DE2036841A1 (en) 1971-02-04
US3632336A (en) 1972-01-04
DE2036841C3 (en) 1978-11-09
FR2055634A5 (en) 1971-05-07
DE2036841B2 (en) 1978-03-16
JPS4839130B1 (en) 1973-11-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee