BE900292A - Procede de fabrication de poudre metallique ventilee pour condensateurs electrolytiques et analogues. - Google Patents

Procede de fabrication de poudre metallique ventilee pour condensateurs electrolytiques et analogues.

Info

Publication number
BE900292A
BE900292A BE2/60470A BE2060470A BE900292A BE 900292 A BE900292 A BE 900292A BE 2/60470 A BE2/60470 A BE 2/60470A BE 2060470 A BE2060470 A BE 2060470A BE 900292 A BE900292 A BE 900292A
Authority
BE
Belgium
Prior art keywords
metal powder
electrolytic capacitors
ventilated metal
sulfur
manufacturing
Prior art date
Application number
BE2/60470A
Other languages
English (en)
Original Assignee
Gfe G Fur Elektrometallurgie M
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 Gfe G Fur Elektrometallurgie M filed Critical Gfe G Fur Elektrometallurgie M
Publication of BE900292A publication Critical patent/BE900292A/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/052—Sintered electrodes
    • H01G9/0525—Powder therefor
    • 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
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/20—Obtaining niobium, tantalum or vanadium
    • C22B34/24—Obtaining niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

On forme un mélange réactionnel contenant le sel bifluoré du métal ventilé et du sodium et/ou du potassium métallique que l'on fait réagir en présence d'un élément dopant, ce qui provoque la formation d'un gateau de fusion. La poudre de métal ventilé est obtenue par extraction de ce gateau de fusion. L'élément dopant est le soufre sous forme de soufre élémentaire et/ou de combinaisons soufrées, de préférence de combinaisons soufrées pouvant etre extraites par lavage.
BE2/60470A 1983-08-24 1984-08-03 Procede de fabrication de poudre metallique ventilee pour condensateurs electrolytiques et analogues. BE900292A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833330455 DE3330455A1 (de) 1983-08-24 1983-08-24 Verfahren zur herstellung von ventilmetallpulver fuer elektrolytkondensatoren und dergleichen

Publications (1)

Publication Number Publication Date
BE900292A true BE900292A (fr) 1984-12-03

Family

ID=6207270

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60470A BE900292A (fr) 1983-08-24 1984-08-03 Procede de fabrication de poudre metallique ventilee pour condensateurs electrolytiques et analogues.

Country Status (4)

Country Link
US (1) US4582530A (fr)
JP (1) JPS6059005A (fr)
BE (1) BE900292A (fr)
DE (1) DE3330455A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336453C2 (de) * 1983-10-06 1985-11-28 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur Oberflächenvergrößerung von Niob und Tantal in Form von agglomerierten oder nicht agglomerierten Pulvern
JPS60149706A (ja) * 1984-01-18 1985-08-07 Showa Kiyabotsuto Suupaa Metal Kk タンタル粉末の製造方法
FR2582019B1 (fr) * 1985-05-17 1987-06-26 Extramet Sa Procede pour la production de metaux par reduction de sels metalliques, metaux ainsi obtenus et dispositif pour sa mise en oeuvre
US4684399A (en) * 1986-03-04 1987-08-04 Cabot Corporation Tantalum powder process
DE3820960A1 (de) * 1988-06-22 1989-12-28 Starck Hermann C Fa Feinkoernige hochreine erdsaeuremetallpulver, verfahren zu ihrer herstellung sowie deren verwendung
US5098485A (en) * 1990-09-19 1992-03-24 Evans Findings Company Method of making electrically insulating metallic oxides electrically conductive
US5869196A (en) * 1996-12-20 1999-02-09 Composite Material Technology, Inc. Constrained filament electrolytic anode and process of fabrication
US6576038B1 (en) 1998-05-22 2003-06-10 Cabot Corporation Method to agglomerate metal particles and metal particles having improved properties
CN1169643C (zh) * 2001-09-29 2004-10-06 宁夏东方钽业股份有限公司 高比表面积钽粉和/或铌粉的制备方法
DE102004049039B4 (de) * 2004-10-08 2009-05-07 H.C. Starck Gmbh Verfahren zur Herstellung feinteiliger Ventilmetallpulver
CN101124060B (zh) * 2004-12-09 2011-08-03 H.C.斯塔克股份公司 阀金属粉末的制备
CA2622336A1 (fr) 2005-09-16 2007-03-22 H.C. Starck Gmbh Procede de reduction

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5241465B1 (fr) * 1967-10-25 1977-10-18
US3825802A (en) * 1973-03-12 1974-07-23 Western Electric Co Solid capacitor
US4062679A (en) * 1973-03-29 1977-12-13 Fansteel Inc. Embrittlement-resistant tantalum wire
US4009007A (en) * 1975-07-14 1977-02-22 Fansteel Inc. Tantalum powder and method of making the same
DE2610224C2 (de) * 1976-03-11 1983-01-05 Fa. Hermann C. Starck Berlin, 1000 Berlin Verfahren zur Herstellung von porösen Anodenkörpern durch Pressen und Sintern von Pulvern aus Ventilmetallen
DE3005207C2 (de) * 1980-02-12 1986-06-12 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur Herstellung eines Phosphor-dotierten Alkalimetall-Erdsäuremetall-Doppelfluorides und dessen Verwendung
US4356028A (en) * 1981-08-24 1982-10-26 Fansteel Inc. In situ phosphorus addition to tantalum

Also Published As

Publication number Publication date
DE3330455A1 (de) 1985-03-14
JPS6137325B2 (fr) 1986-08-23
US4582530A (en) 1986-04-15
DE3330455C2 (fr) 1987-05-21
JPS6059005A (ja) 1985-04-05

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: *CABOT CORP.

Effective date: 20040803