FR2561258A1 - Procede pour reduire la teneur en oxygene du tantale - Google Patents

Procede pour reduire la teneur en oxygene du tantale Download PDF

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Publication number
FR2561258A1
FR2561258A1 FR8503936A FR8503936A FR2561258A1 FR 2561258 A1 FR2561258 A1 FR 2561258A1 FR 8503936 A FR8503936 A FR 8503936A FR 8503936 A FR8503936 A FR 8503936A FR 2561258 A1 FR2561258 A1 FR 2561258A1
Authority
FR
France
Prior art keywords
process according
tantalum
alkali metal
reaction
halide
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.)
Granted
Application number
FR8503936A
Other languages
English (en)
French (fr)
Other versions
FR2561258B1 (2
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.)
Sprague Electric Co
Original Assignee
Sprague Electric Co
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 Sprague Electric Co filed Critical Sprague Electric Co
Publication of FR2561258A1 publication Critical patent/FR2561258A1/fr
Application granted granted Critical
Publication of FR2561258B1 publication Critical patent/FR2561258B1/fr
Granted legal-status Critical Current

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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
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Powder Metallurgy (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
FR8503936A 1984-03-19 1985-03-18 Procede pour reduire la teneur en oxygene du tantale Granted FR2561258A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/591,293 US4508563A (en) 1984-03-19 1984-03-19 Reducing the oxygen content of tantalum

Publications (2)

Publication Number Publication Date
FR2561258A1 true FR2561258A1 (fr) 1985-09-20
FR2561258B1 FR2561258B1 (2) 1993-02-26

Family

ID=24365899

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8503936A Granted FR2561258A1 (fr) 1984-03-19 1985-03-18 Procede pour reduire la teneur en oxygene du tantale

Country Status (4)

Country Link
US (1) US4508563A (2)
JP (1) JPS60217622A (2)
CA (1) CA1228988A (2)
FR (1) FR2561258A1 (2)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030470A1 (de) * 1989-09-26 1991-04-04 Cabot Corp Kontrolle des sauerstoffgehalts in einem werkstoff aus tantal

Families Citing this family (38)

* 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
US4722756A (en) * 1987-02-27 1988-02-02 Cabot Corp Method for deoxidizing tantalum material
JPS6475632A (en) * 1987-09-18 1989-03-22 Tosoh Corp Recovering method for tantalum from scrap tantalum
US5242481A (en) * 1989-06-26 1993-09-07 Cabot Corporation Method of making powders and products of tantalum and niobium
ES2020131A6 (es) * 1989-06-26 1991-07-16 Cabot Corp Procedimiento para la produccion de polvos de tantalo, niobio y sus aleaciones.
JP2505343B2 (ja) * 1992-03-17 1996-06-05 昭和キャボットスーパーメタル株式会社 タンタル粉末及びその製造方法
DE69516556T2 (de) * 1994-01-26 2000-09-07 H.C. Starck, Inc. Verfahren zum Nitrieren von Tantalpulver
US20030002043A1 (en) * 2001-04-10 2003-01-02 Kla-Tencor Corporation Periodic patterns and technique to control misalignment
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
JP3610942B2 (ja) * 2001-10-12 2005-01-19 住友金属鉱山株式会社 ニオブおよび／またはタンタルの粉末の製造法
AU2006243448B2 (en) * 2005-05-05 2011-09-01 H.C. Starck Inc. Coating process for manufacture or reprocessing of sputter targets and X-ray anodes
US8802191B2 (en) * 2005-05-05 2014-08-12 H. C. Starck Gmbh Method for coating a substrate surface and coated product
WO2007130483A2 (en) * 2006-05-05 2007-11-15 Cabot Corporation Tantalum powder with smooth surface and methods of manufacturing same
US20080078268A1 (en) * 2006-10-03 2008-04-03 H.C. Starck Inc. Process for preparing metal powders having low oxygen content, powders so-produced and uses thereof
JP5377319B2 (ja) * 2006-11-07 2013-12-25 ハー．ツェー．スタルク ゲゼルシャフト ミット ベシュレンクテル ハフツング 基材のコーティング方法及びコーティング製品
US20080145688A1 (en) 2006-12-13 2008-06-19 H.C. Starck Inc. Method of joining tantalum clade steel structures
US8197894B2 (en) 2007-05-04 2012-06-12 H.C. Starck Gmbh Methods of forming sputtering targets
US8246903B2 (en) 2008-09-09 2012-08-21 H.C. Starck Inc. Dynamic dehydriding of refractory metal powders
US8043655B2 (en) * 2008-10-06 2011-10-25 H.C. Starck, Inc. Low-energy method of manufacturing bulk metallic structures with submicron grain sizes
US8824122B2 (en) 2010-11-01 2014-09-02 Avx Corporation Solid electrolytic capacitor for use in high voltage and high temperature applications
WO2013049274A2 (en) 2011-09-29 2013-04-04 H.C. Starck, Inc. Large-area sputtering targets and methods of manufacturing large-area sputtering targets
DE102013101443B4 (de) 2012-03-01 2025-05-28 KYOCERA AVX Components Corporation (n. d. Ges. d. Staates Delaware) Verfahren zum Ausbilden eines Ultrahochspannungs-Festelektrolytkondensators
DE102013213723A1 (de) 2012-07-19 2014-01-23 Avx Corporation Festelektrolytkondensator mit erhöhter Feucht-zu-Trocken-Kapazität
CN103578768B (zh) 2012-07-19 2017-10-31 Avx公司 用在电解电容器固体电解质中的非离子表面活性剂
US9548163B2 (en) 2012-07-19 2017-01-17 Avx Corporation Solid electrolytic capacitor with improved performance at high voltages
DE102013213720A1 (de) 2012-07-19 2014-01-23 Avx Corporation Temperaturstabiler Festelektrolytkondensator
JP5933397B2 (ja) 2012-08-30 2016-06-08 エイヴィーエックス コーポレイション 固体電解コンデンサの製造方法および固体電解コンデンサ
GB2512480B (en) 2013-03-13 2018-05-30 Avx Corp Solid electrolytic capacitor for use in extreme conditions
US9324503B2 (en) 2013-03-15 2016-04-26 Avx Corporation Solid electrolytic capacitor
GB2514486B (en) 2013-05-13 2018-08-29 Avx Corp Solid electrolytic capacitor containing a pre-coat layer
GB2516529B (en) 2013-05-13 2018-08-29 Avx Corp Solid electrolytic capacitor containing a multi-layered adhesion coating
GB2517019B (en) 2013-05-13 2018-08-29 Avx Corp Solid electrolytic capacitor containing conductive polymer particles
FR3038623B1 (fr) * 2015-07-10 2017-06-30 Fives Procede permettant de retirer les oxydes presents a la surface des nodules d'une poudre metallique avant l'utilisation de celle-ci dans un procede industriel
US10431389B2 (en) 2016-11-14 2019-10-01 Avx Corporation Solid electrolytic capacitor for high voltage environments
US11081288B1 (en) 2018-08-10 2021-08-03 Avx Corporation Solid electrolytic capacitor having a reduced anomalous charging characteristic
US11380492B1 (en) 2018-12-11 2022-07-05 KYOCERA AVX Components Corporation Solid electrolytic capacitor
US11756742B1 (en) 2019-12-10 2023-09-12 KYOCERA AVX Components Corporation Tantalum capacitor with improved leakage current stability at high temperatures
US11763998B1 (en) 2020-06-03 2023-09-19 KYOCERA AVX Components Corporation Solid electrolytic capacitor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139982B (de) * 1959-10-21 1962-11-22 Ciba Geigy Verfahren zur Gewinnung von Niob und Tantal bzw. ihrer Legierungen
CH420632A (de) * 1959-10-21 1966-09-15 Ciba Geigy Verfahren zur Gewinnung der Metalle Niob und Tantal
US3415639A (en) * 1965-05-25 1968-12-10 Ciba Ltd Method for the manufacture of tantalum and/or niobium powder
US4231790A (en) * 1975-04-18 1980-11-04 Hermann C. Starck Berlin Process for the preparation of tantalum and niobium powders of improved efficiency

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB492060A (en) * 1937-04-19 1938-09-14 Alexis Behr Improvements in or relating to electrodes for electrolytic condensers and the like
CH377613A (de) * 1959-12-02 1964-05-15 Ciba Geigy Verfahren zum Schutz der Oberfläche von Niob und Tantal
CH396213A (de) * 1961-01-10 1965-07-31 Ciba Geigy Verfahren zur Herstellung von Anoden für Elektrolytkondensatoren
GB1123015A (en) * 1964-08-07 1968-08-07 Union Carbide Corp A process for producing sintered anodes
US3751333A (en) * 1970-06-11 1973-08-07 C Drummond Nuclear reactor core monitoring system
US3697255A (en) * 1970-11-17 1972-10-10 Western Electric Co Scrap tantalum reclamation process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1139982B (de) * 1959-10-21 1962-11-22 Ciba Geigy Verfahren zur Gewinnung von Niob und Tantal bzw. ihrer Legierungen
CH420632A (de) * 1959-10-21 1966-09-15 Ciba Geigy Verfahren zur Gewinnung der Metalle Niob und Tantal
US3415639A (en) * 1965-05-25 1968-12-10 Ciba Ltd Method for the manufacture of tantalum and/or niobium powder
US4231790A (en) * 1975-04-18 1980-11-04 Hermann C. Starck Berlin Process for the preparation of tantalum and niobium powders of improved efficiency

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030470A1 (de) * 1989-09-26 1991-04-04 Cabot Corp Kontrolle des sauerstoffgehalts in einem werkstoff aus tantal
DE4030470C2 (de) * 1989-09-26 1999-07-15 Cabot Corp Verfahren zur Kontrolle des Sauerstoffgehalts in einem Werkstoff aus Tantal

Also Published As

Publication number Publication date
CA1228988A (en) 1987-11-10
JPS60217622A (ja) 1985-10-31
US4508563A (en) 1985-04-02
FR2561258B1 (2) 1993-02-26

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ER Errata listed in the french official journal (bopi)

Free format text: 38/85

ST Notification of lapse