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AU2000268772A1 - Production of nitrogen-containing tantalum or niobium powder and solid electrolytic capacitor - Google Patents

Production of nitrogen-containing tantalum or niobium powder and solid electrolytic capacitor

Info

Publication number
AU2000268772A1
AU2000268772A1 AU2000268772A AU6877200A AU2000268772A1 AU 2000268772 A1 AU2000268772 A1 AU 2000268772A1 AU 2000268772 A AU2000268772 A AU 2000268772A AU 6877200 A AU6877200 A AU 6877200A AU 2000268772 A1 AU2000268772 A1 AU 2000268772A1
Authority
AU
Australia
Prior art keywords
nitrogen
metallic powder
metal
electrolytic capacitor
powder
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.)
Abandoned
Application number
AU2000268772A
Inventor
Tomoo Izumi
Yoshikazu Noguchi
Yukio Oda
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.)
Cabot Supermetals KK
Original Assignee
Showa Cabot Supermetals KK
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=18555954&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2000268772(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Showa Cabot Supermetals KK filed Critical Showa Cabot Supermetals KK
Publication of AU2000268772A1 publication Critical patent/AU2000268772A1/en
Abandoned legal-status Critical Current

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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B22F1/054—Nanosized particles
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B22F1/054—Nanosized particles
    • B22F1/056—Submicron particles having a size above 100 nm up to 300 nm
    • 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
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Composite Materials (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Conductive Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

To provide nitrogen-containing metallic powder at high productivity, which comprises a metal such as niobium or tantalum containing nitrogen uniformly, and enables production of an anode electrode that has high specific capacitance and low leakage current and that exhibits excellent reliability for a prolonged period of time, there is provided nitrogen-containing metallic powder which is a solid solution containing 50-20,000 ppm nitrogen, in which the metal that constitutes the metallic powder is niobium or tantalum. The nitrogen-containing metallic powder is produced through the procedure in which while a metallic compound is reduced with a reducing agent, a nitrogen-containing gas is introduced into a reaction system to thereby form metal, and simultaneously nitrogen is incorporated into metal. A porous sintered body comprising the nitrogen-containing metallic powder and a solid electrolytic capacitor comprising the powder have low leakage current and exhibit excellent reliability for a prolonged period of time.
AU2000268772A 2000-02-08 2000-09-11 Production of nitrogen-containing tantalum or niobium powder and solid electrolytic capacitor Abandoned AU2000268772A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000031029A JP4049964B2 (en) 2000-02-08 2000-02-08 Nitrogen-containing metal powder, production method thereof, porous sintered body and solid electrolytic capacitor using the same
JP2000-31029 2000-02-08
PCT/JP2000/006183 WO2001059166A1 (en) 2000-02-08 2000-09-11 Production of nitrogen-containing tantalum or niobium powder and solid electrolytic capacitor

Publications (1)

Publication Number Publication Date
AU2000268772A1 true AU2000268772A1 (en) 2001-08-20

Family

ID=18555954

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000268772A Abandoned AU2000268772A1 (en) 2000-02-08 2000-09-11 Production of nitrogen-containing tantalum or niobium powder and solid electrolytic capacitor

Country Status (13)

Country Link
EP (1) EP1255872B1 (en)
JP (1) JP4049964B2 (en)
KR (1) KR20020092362A (en)
CN (1) CN1180101C (en)
AT (1) ATE245712T1 (en)
AU (1) AU2000268772A1 (en)
BR (2) BR0017498B1 (en)
CZ (1) CZ301396B6 (en)
DE (1) DE60004108T2 (en)
IL (1) IL150851A (en)
PL (1) PL357016A1 (en)
PT (1) PT1255872E (en)
WO (1) WO2001059166A1 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4187953B2 (en) * 2001-08-15 2008-11-26 キャボットスーパーメタル株式会社 Method for producing nitrogen-containing metal powder
KR20060006105A (en) * 2001-10-02 2006-01-18 쇼와 덴코 가부시키가이샤 Niobium powder, its sintered body, its compound and its capacitor
BR0204587A (en) * 2002-11-04 2004-06-29 Cbmm Sa High Surface Area Niobium and / or Tantalum Powder Production Process
US7157073B2 (en) 2003-05-02 2007-01-02 Reading Alloys, Inc. Production of high-purity niobium monoxide and capacitor production therefrom
CN100513022C (en) 2003-11-05 2009-07-15 石原药品株式会社 Processes for production of ultrafine particles of pure metals and alloys
DE602005011773D1 (en) 2004-04-15 2009-01-29 Jfe Mineral Co Ltd TANTAL POWDER AND THIS FIXED ELECTROLYTE CONDENSER
US7431751B2 (en) * 2004-09-29 2008-10-07 H.C. Starck Inc. Magnesium removal from magnesium reduced metal powders
KR101159625B1 (en) * 2004-10-06 2012-06-27 쇼와 덴코 가부시키가이샤 Niobium powder, niobium granules, niobium sinter and capacitor, and production processes thereof
US20060269436A1 (en) * 2005-05-31 2006-11-30 Cabot Corporation Process for heat treating metal powder and products made from the same
JP4879040B2 (en) * 2006-03-31 2012-02-15 三洋電機株式会社 Solid electrolytic capacitor
JP2009536266A (en) * 2006-05-05 2009-10-08 キャボット コーポレイション Tantalum powder and method for producing the same
JP2009275289A (en) * 2009-07-10 2009-11-26 Cabot Supermetal Kk Method for producing nitrogen-containing metal powder
JP5680866B2 (en) * 2010-02-24 2015-03-04 グローバルアドバンストメタルジャパン株式会社 Method for producing nitrogen-containing metal powder
MX380446B (en) * 2013-12-10 2025-03-12 Ningxia Orient Tantalum Ind Co Ltd METHOD FOR PREPARING CAPACITOR GRADE TANTALUM POWDER WITH HIGH NITROGEN CONTENT, CAPACITOR GRADE TANTALUM POWDER PREPARED THEREFORE, AND ANODE AND CAPACITOR PREPARED FROM THE TANTALUM POWDER.
JP5898297B2 (en) * 2014-11-20 2016-04-06 グローバルアドバンストメタルジャパン株式会社 Method for producing nitrogen-containing metal powder
KR20190028745A (en) * 2016-07-13 2019-03-19 닝시아 오리엔트 탄탈럼 인더스트리 코포레이션 엘티디 Flaked tantalum powder and a method for manufacturing the same
US20180144874A1 (en) 2016-10-21 2018-05-24 Global Advanced Metals, Usa, Inc. Tantalum Powder, Anode, And Capacitor Including Same, And Manufacturing Methods Thereof
CN111017889A (en) * 2019-11-20 2020-04-17 中色（宁夏）东方集团有限公司 A kind of preparation method of niobium nitride
JP7752359B2 (en) * 2020-08-27 2025-10-10 パナソニックＩｐマネジメント株式会社 Electrode foil for electrolytic capacitor, electrolytic capacitor, method for manufacturing electrode foil for electrolytic capacitor, and method for manufacturing electrolytic capacitor
CN116210066B (en) * 2020-09-23 2025-07-25 京瓷Avx元器件公司 Solid electrolytic capacitor containing deoxidized anode
CN114192791B (en) * 2021-12-15 2023-10-24 宁夏东方钽业股份有限公司 Method for producing tantalum powder for capacitor by adopting alkaline earth metal to reduce tantalum oxide
CN117444193A (en) * 2023-11-24 2024-01-26 宁夏东方钽业股份有限公司 A kind of tantalum powder and preparation method of tantalum powder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684399A (en) * 1986-03-04 1987-08-04 Cabot Corporation Tantalum powder process
WO1991018121A1 (en) * 1990-05-17 1991-11-28 Cabot Corporation Method of producing high surface area low metal impurity tantalum powder
US5448447A (en) * 1993-04-26 1995-09-05 Cabot Corporation Process for making an improved tantalum powder and high capacitance low leakage electrode made therefrom
DE69516556T2 (en) * 1994-01-26 2000-09-07 H.C. Starck, Inc. Process for nitriding tantalum powder
JP3817742B2 (en) 1997-02-19 2006-09-06 エイチ・シー・スタルク・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Tantalum powder, process for its production, and sintered anode obtainable therefrom

Also Published As

Publication number Publication date
CZ20022680A3 (en) 2003-04-16
WO2001059166A1 (en) 2001-08-16
JP2001223141A (en) 2001-08-17
ATE245712T1 (en) 2003-08-15
PT1255872E (en) 2004-01-30
BR0016331A (en) 2002-12-24
JP4049964B2 (en) 2008-02-20
DE60004108T2 (en) 2004-06-03
KR20020092362A (en) 2002-12-11
PL357016A1 (en) 2004-07-12
EP1255872A1 (en) 2002-11-13
CN1433485A (en) 2003-07-30
IL150851A (en) 2009-09-22
BR0016331B1 (en) 2008-11-18
CZ301396B6 (en) 2010-02-17
CN1180101C (en) 2004-12-15
DE60004108D1 (en) 2003-08-28
EP1255872B1 (en) 2003-07-23
BR0017498B1 (en) 2014-09-30

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