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GB775420A - An improved method of recovering tungsten from tungsten or tungsten alloy scrap - Google Patents

An improved method of recovering tungsten from tungsten or tungsten alloy scrap

Info

Publication number
GB775420A
GB775420A GB3017555A GB3017555A GB775420A GB 775420 A GB775420 A GB 775420A GB 3017555 A GB3017555 A GB 3017555A GB 3017555 A GB3017555 A GB 3017555A GB 775420 A GB775420 A GB 775420A
Authority
GB
United Kingdom
Prior art keywords
scrap
tungsten
copper
electrolyte
barrel
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
GB3017555A
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.)
Mallory Metallurgical Products Ltd
Original Assignee
Mallory Metallurgical Products Ltd
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 Mallory Metallurgical Products Ltd filed Critical Mallory Metallurgical Products Ltd
Publication of GB775420A publication Critical patent/GB775420A/en
Expired 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
    • C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

775,420. Electrolytically recovering tungsten scrap as oxide. MALLORY METALLURGI. CAL PRODUCTS, Ltd. Oct. 21, 1955 [Oct. 29, 1954], No. 30175/55. Class 41. Tungsten or tungsten alloy scrap is anodically oxidized in an aqueous bath containing an alkali metal halide and the oxide sediment is thereafter separated from the electrolyte. Typically the scrap is loaded into a copper tumbling barrel, a plastic or rubber barrel having a replaceable copper lining, or a barrel having scrap-engaging copper anode connections and a copper tank or a copper plate is used as cathode, or both anode and cathode comprise scrap-loaded plastic covered copper basket provided with scrap-engaging copper connections, the polarity being reversed occasionally so that the scrap in both is oxidized, the electrolyte being agitated. Preferably the electrolyte contains 50-800 g/l. of potassium fluoride at a pH of 7.5 to 9.5 and 150-230‹ F.
GB3017555A 1954-10-29 1955-10-21 An improved method of recovering tungsten from tungsten or tungsten alloy scrap Expired GB775420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US775420XA 1954-10-29 1954-10-29

Publications (1)

Publication Number Publication Date
GB775420A true GB775420A (en) 1957-05-22

Family

ID=22138679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3017555A Expired GB775420A (en) 1954-10-29 1955-10-21 An improved method of recovering tungsten from tungsten or tungsten alloy scrap

Country Status (1)

Country Link
GB (1) GB775420A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005877A2 (en) * 1978-05-25 1979-12-12 SKF Industrial Trading & Development Co, B.V. Process for decomposing hard metal scrap
GB2269183A (en) * 1992-07-30 1994-02-02 Charles Bowden Elactrolytic production of metal oxides

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005877A2 (en) * 1978-05-25 1979-12-12 SKF Industrial Trading & Development Co, B.V. Process for decomposing hard metal scrap
EP0005877A3 (en) * 1978-05-25 1980-01-09 SKF Industrial Trading & Development Co, B.V. Process for decomposing hard metal scrap
GB2269183A (en) * 1992-07-30 1994-02-02 Charles Bowden Elactrolytic production of metal oxides

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