GB606117A - Method of recovering hard metal carbides and bond metals from sintered masses - Google Patents

Method of recovering hard metal carbides and bond metals from sintered masses

Info

Publication number
GB606117A
GB606117A GB1445445A GB1445445A GB606117A GB 606117 A GB606117 A GB 606117A GB 1445445 A GB1445445 A GB 1445445A GB 1445445 A GB1445445 A GB 1445445A GB 606117 A GB606117 A GB 606117A
Authority
GB
United Kingdom
Prior art keywords
mass
hard metal
bond
metal carbides
metal
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
GB1445445A
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 GB1445445A priority Critical patent/GB606117A/en
Publication of GB606117A publication Critical patent/GB606117A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical 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
    • 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
    • C22B7/001—Dry processes
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

Hard metal carbides are recovered from a sintered mass of such material with a bond metal by heating the mass to a temperature greater than 1700 DEG C. in a non-oxidising and caused to swell and crack and become porous. The mass is then treated with an acid, preferably heated to its boiling point, to completely permeate the mass and dissolve out the bond metal. The resultant mass of hard-metal carbide may then be subjected to mechanical reduction.ALSO:Hard metal carbides and bond metals are recovered from a sintered mass of such materials by heating the mass to a temperature greater than 1700 DEG C. in a non-oxidizing atmosphere, and preferably in a reducing atmosphere, until the mass is caused to swell and crack and become porous. The mass is then treated with an acid, preferably heated to its boiling point, which acid permeates the porous mass, whereby the bond metal is dissolved. The resultant mass of hard metal carbide may then be subjected to mechanical reduction.
GB1445445A 1945-06-07 1945-06-07 Method of recovering hard metal carbides and bond metals from sintered masses Expired GB606117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1445445A GB606117A (en) 1945-06-07 1945-06-07 Method of recovering hard metal carbides and bond metals from sintered masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1445445A GB606117A (en) 1945-06-07 1945-06-07 Method of recovering hard metal carbides and bond metals from sintered masses

Publications (1)

Publication Number Publication Date
GB606117A true GB606117A (en) 1948-08-06

Family

ID=10041468

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1445445A Expired GB606117A (en) 1945-06-07 1945-06-07 Method of recovering hard metal carbides and bond metals from sintered masses

Country Status (1)

Country Link
GB (1) GB606117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233162A2 (en) * 1986-02-05 1987-08-19 Santrade Ltd. Method of treating cemented carbide bodies regarding their compositions and structures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233162A2 (en) * 1986-02-05 1987-08-19 Santrade Ltd. Method of treating cemented carbide bodies regarding their compositions and structures
EP0233162A3 (en) * 1986-02-05 1989-07-19 Santrade Ltd. Method of treating cemented carbide bodies regarding their compositions and structures

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