NL7805669A - Werkwijze om afval van hardmetaal te ontleden. - Google Patents

Werkwijze om afval van hardmetaal te ontleden.

Info

Publication number
NL7805669A
NL7805669A NL7805669BA NL7805669A NL7805669A NL 7805669 A NL7805669 A NL 7805669A NL 7805669B A NL7805669B A NL 7805669BA NL 7805669 A NL7805669 A NL 7805669A NL 7805669 A NL7805669 A NL 7805669A
Authority
NL
Netherlands
Prior art keywords
decomposition
carbon metal
metal wastes
wastes
carbon
Prior art date
Application number
NL7805669BA
Other languages
English (en)
Original Assignee
Skf Ind Trading & Dev
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 Skf Ind Trading & Dev filed Critical Skf Ind Trading & Dev
Priority to NL7805669BA priority Critical patent/NL7805669A/nl
Priority to US06/038,936 priority patent/US4349423A/en
Priority to EP79200242A priority patent/EP0005877A3/en
Priority to JP6335179A priority patent/JPS54163767A/ja
Publication of NL7805669A publication Critical patent/NL7805669A/nl

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F5/00—Electrolytic stripping of metallic layers or coatings
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G41/00—Compounds of tungsten
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/02—Etching

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
NL7805669BA 1978-05-25 1978-05-25 Werkwijze om afval van hardmetaal te ontleden. NL7805669A (nl)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL7805669BA NL7805669A (nl) 1978-05-25 1978-05-25 Werkwijze om afval van hardmetaal te ontleden.
US06/038,936 US4349423A (en) 1978-05-25 1979-05-14 Process for decomposing hard metal scrap
EP79200242A EP0005877A3 (en) 1978-05-25 1979-05-18 Process for decomposing hard metal scrap
JP6335179A JPS54163767A (en) 1978-05-25 1979-05-24 Decomposing hard alloy scrap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7805669BA NL7805669A (nl) 1978-05-25 1978-05-25 Werkwijze om afval van hardmetaal te ontleden.

Publications (1)

Publication Number Publication Date
NL7805669A true NL7805669A (nl) 1979-11-27

Family

ID=19830914

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7805669BA NL7805669A (nl) 1978-05-25 1978-05-25 Werkwijze om afval van hardmetaal te ontleden.

Country Status (4)

Country Link
US (1) US4349423A (nl)
EP (1) EP0005877A3 (nl)
JP (1) JPS54163767A (nl)
NL (1) NL7805669A (nl)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9217414D0 (en) * 1992-08-15 1992-09-30 British Nuclear Fuels Plc Removal of metal from graphite
US5384016A (en) * 1993-11-10 1995-01-24 National Science Council Process for recovering tungsten carbide from cemented tungsten carbide scraps by selective electrolysis
WO2006068660A2 (en) * 2004-12-23 2006-06-29 Diamond Innovations, Inc. Electrochemical dissolution of conductive composites
US7239121B2 (en) * 2005-03-11 2007-07-03 Hitachi Global Storage Technologies Netherlands B.V. Quantative extraction of micro particles from metallic disk spacer rings
US8961630B2 (en) 2012-05-04 2015-02-24 Baker Hughes Incorporated Methods of forming cutting elements by removing metal from interstitial spaces in polycrystalline diamond
DE112014005310B4 (de) 2013-11-21 2022-11-24 Kennametal Inc. Verfahren für die Aufbereitung von Wolframcarbidzusammensetzungen
JP6374285B2 (ja) * 2014-09-30 2018-08-15 Ｊｘ金属株式会社 タングステン化合物の回収方法
US10940538B2 (en) 2017-08-11 2021-03-09 Kennametal Inc. Grade powders and sintered cemented carbide compositions
CN107513730B (zh) * 2017-08-31 2019-06-14 北京工业大学 连续制备钨粉和钴粉的装置以及方法
CN109022769B (zh) * 2018-08-27 2020-04-03 河北罗奇新材料科技有限公司 钨钴合金废料中钨和钴的回收工艺
CN113070486A (zh) * 2021-03-26 2021-07-06 四川大学 一种含稀土元素的硬质合金冶金原料制备方法及装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1261383A (en) * 1917-03-14 1918-04-02 Hamilton Beauchamp Woodworth Inc Extraction of metals from their ores.
US2704240A (en) * 1951-10-23 1955-03-15 American Brake Shoe Co Process of preparing tungstic oxide from sintered masses containing tungsten carbide
GB776046A (en) * 1952-07-31 1957-06-05 Deutsche Edelstahlwerke Ag Process for electrolyte machining of cemented carbide materials
GB775420A (en) * 1954-10-29 1957-05-22 Mallory Metallurg Prod Ltd An improved method of recovering tungsten from tungsten or tungsten alloy scrap
US3151049A (en) * 1958-09-29 1964-09-29 Union Carbide Corp Electrolytic method of and bath for stripping coatings from bases
US3438730A (en) * 1966-11-14 1969-04-15 Warren M Shwayder Method of disintegrating sintered hard carbide masses
US3649487A (en) * 1969-12-03 1972-03-14 Gullspangs Elektrokemiska Ab Process for the recovery from secondary material of such metals as nickel cobalt iron and copper said secondary material comprising in addition one or more metals having a high melting point
US3887680A (en) * 1973-10-23 1975-06-03 Gte Sylvania Inc Process for recovering tungsten from tungsten carbides containing an iron group of metals
JPS5384812A (en) * 1976-12-30 1978-07-26 Toho Kinzoku Kk Method of recovering metal component from metal carbide sintered member
US4128463A (en) * 1978-03-02 1978-12-05 Trw Inc. Method for stripping tungsten carbide from titanium or titanium alloy substrates

Also Published As

Publication number Publication date
EP0005877A2 (en) 1979-12-12
EP0005877A3 (en) 1980-01-09
US4349423A (en) 1982-09-14
JPS54163767A (en) 1979-12-26

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed