CH515996A - Process for the production of high-purity niobium and / or tantalum - Google Patents

Process for the production of high-purity niobium and / or tantalum

Info

Publication number
CH515996A
CH515996A CH838068A CH838068A CH515996A CH 515996 A CH515996 A CH 515996A CH 838068 A CH838068 A CH 838068A CH 838068 A CH838068 A CH 838068A CH 515996 A CH515996 A CH 515996A
Authority
CH
Switzerland
Prior art keywords
tantalum
production
purity niobium
niobium
purity
Prior art date
Application number
CH838068A
Other languages
German (de)
Inventor
Restelli Attilio
Original Assignee
Starck Hermann C Fa
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 Starck Hermann C Fa filed Critical Starck Hermann C Fa
Priority to CH838068A priority Critical patent/CH515996A/en
Priority to FR6918191A priority patent/FR2010259A1/fr
Priority to BE734012D priority patent/BE734012A/xx
Priority to US830542A priority patent/US3647420A/en
Priority to DE19691928149 priority patent/DE1928149A1/en
Priority to GB1266065D priority patent/GB1266065A/en
Publication of CH515996A publication Critical patent/CH515996A/en

Links

Classifications

    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
CH838068A 1968-06-06 1968-06-06 Process for the production of high-purity niobium and / or tantalum CH515996A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH838068A CH515996A (en) 1968-06-06 1968-06-06 Process for the production of high-purity niobium and / or tantalum
FR6918191A FR2010259A1 (en) 1968-06-06 1969-06-03
BE734012D BE734012A (en) 1968-06-06 1969-06-03
US830542A US3647420A (en) 1968-06-06 1969-06-04 Process for producing high-purity niobium and tantalum
DE19691928149 DE1928149A1 (en) 1968-06-06 1969-06-04 Process for the production of high purity niobium and tantalum
GB1266065D GB1266065A (en) 1968-06-06 1969-06-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH838068A CH515996A (en) 1968-06-06 1968-06-06 Process for the production of high-purity niobium and / or tantalum

Publications (1)

Publication Number Publication Date
CH515996A true CH515996A (en) 1971-11-30

Family

ID=4339418

Family Applications (1)

Application Number Title Priority Date Filing Date
CH838068A CH515996A (en) 1968-06-06 1968-06-06 Process for the production of high-purity niobium and / or tantalum

Country Status (6)

Country Link
US (1) US3647420A (en)
BE (1) BE734012A (en)
CH (1) CH515996A (en)
DE (1) DE1928149A1 (en)
FR (1) FR2010259A1 (en)
GB (1) GB1266065A (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517180C3 (en) * 1975-04-18 1979-04-19 Fa. Hermann C. Starck Berlin, 1000 Berlin Process for the continuous production of fine, high-capacity earth acid metal powder for electrolytic capacitors
US4113479A (en) * 1976-02-27 1978-09-12 Amax Inc. Vacuum smelting process for producing ferrotungsten
ES2020131A6 (en) * 1989-06-26 1991-07-16 Cabot Corp Powders and products of tantalum, niobium and their alloys
US5242481A (en) * 1989-06-26 1993-09-07 Cabot Corporation Method of making powders and products of tantalum and niobium
US6165623A (en) * 1996-11-07 2000-12-26 Cabot Corporation Niobium powders and niobium electrolytic capacitors
US6051326A (en) * 1997-04-26 2000-04-18 Cabot Corporation Valve metal compositions and method
US6051044A (en) 1998-05-04 2000-04-18 Cabot Corporation Nitrided niobium powders and niobium electrolytic capacitors
EP2055412B1 (en) * 1998-05-06 2012-08-22 H.C. Starck GmbH Niobium or tantalum based powder produced by the reduction of the oxides with a gaseous metal
US6171363B1 (en) * 1998-05-06 2001-01-09 H. C. Starck, Inc. Method for producing tantallum/niobium metal powders by the reduction of their oxides with gaseous magnesium
DE19831280A1 (en) * 1998-07-13 2000-01-20 Starck H C Gmbh Co Kg Acidic earth metal, specifically tantalum or niobium, powder for use, e.g., in capacitor production is produced by two-stage reduction of the pentoxide using hydrogen as the first stage reducing agent for initial suboxide formation
US6416730B1 (en) * 1998-09-16 2002-07-09 Cabot Corporation Methods to partially reduce a niobium metal oxide oxygen reduced niobium oxides
US6391275B1 (en) * 1998-09-16 2002-05-21 Cabot Corporation Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides
US6462934B2 (en) 1998-09-16 2002-10-08 Cabot Corporation Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides
DE19847012A1 (en) * 1998-10-13 2000-04-20 Starck H C Gmbh Co Kg Niobium powder and process for its manufacture
US6348113B1 (en) * 1998-11-25 2002-02-19 Cabot Corporation High purity tantalum, products containing the same, and methods of making the same
WO2000049633A1 (en) * 1999-02-16 2000-08-24 Showa Denko K.K. Niobium powder, niobium sintered body, capacitor comprised of the sintered body, and method for manufacturing the capacitor
KR20010113845A (en) 1999-03-19 2001-12-28 마싸 앤 피네간 Making Niobium and Other Metal Powders by Milling
US6375704B1 (en) * 1999-05-12 2002-04-23 Cabot Corporation High capacitance niobium powders and electrolytic capacitor anodes
US6576099B2 (en) 2000-03-23 2003-06-10 Cabot Corporation Oxygen reduced niobium oxides
AU2001296213A1 (en) 2000-05-22 2001-12-24 Cabot Corporation High purity niobium and products containing the same, and methods of making the same
US6849104B2 (en) * 2000-10-10 2005-02-01 H. C. Starck Inc. Metalothermic reduction of refractory metal oxides
DE60123102T2 (en) * 2000-11-06 2006-12-21 Cabot Corp., Boston MODIFIED OXYGEN-REDUCED VALVE METAL OXIDES
US7655214B2 (en) * 2003-02-26 2010-02-02 Cabot Corporation Phase formation of oxygen reduced valve metal oxides and granulation methods
US7445679B2 (en) * 2003-05-16 2008-11-04 Cabot Corporation Controlled oxygen addition for metal material
WO2004103906A2 (en) * 2003-05-19 2004-12-02 Cabot Corporation Methods of making a niobium metal oxide and oxygen reduced niobium oxides
US7354472B2 (en) * 2004-06-21 2008-04-08 H.C. Starck Inc. Metalothermic reduction of refractory metal oxides
US7431751B2 (en) * 2004-09-29 2008-10-07 H.C. Starck Inc. Magnesium removal from magnesium reduced metal powders
US20080105082A1 (en) * 2004-09-29 2008-05-08 Shekhter Leonid N Magnesium Removal From Magnesium Reduced Metal Powders
US7594937B2 (en) * 2004-11-29 2009-09-29 Showa Denko K.K. Porous anode body for solid electrolytic capacitor, production method thereof and solid electrolytic capacitor
US7099143B1 (en) * 2005-05-24 2006-08-29 Avx Corporation Wet electrolytic capacitors
US7511943B2 (en) * 2006-03-09 2009-03-31 Avx Corporation Wet electrolytic capacitor containing a cathode coating
US7480130B2 (en) * 2006-03-09 2009-01-20 Avx Corporation Wet electrolytic capacitor
US7460356B2 (en) * 2007-03-20 2008-12-02 Avx Corporation Neutral electrolyte for a wet electrolytic capacitor
US7649730B2 (en) * 2007-03-20 2010-01-19 Avx Corporation Wet electrolytic capacitor containing a plurality of thin powder-formed anodes
US7554792B2 (en) * 2007-03-20 2009-06-30 Avx Corporation Cathode coating for a wet electrolytic capacitor
US8246903B2 (en) * 2008-09-09 2012-08-21 H.C. Starck Inc. Dynamic dehydriding of refractory metal powders
JP5010706B2 (en) * 2010-04-01 2012-08-29 三井金属鉱業株式会社 Tantalum recovery method
RU2465097C1 (en) * 2011-05-04 2012-10-27 Федеральное государственное бюджетное учреждение науки Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева Кольского научного центра Российской академии наук (ИХТРЭМС КНЦ РАН) Method of producing tantalum powder
CN104439264B (en) * 2014-12-19 2017-01-04 九江有色金属冶炼有限公司 The preparation method of a kind of niobium bar and the niobium bar of preparation thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US26294A (en) * 1859-11-29 Improvement in horse hay-rakes
BE589231A (en) * 1959-03-31
US3144328A (en) * 1960-05-17 1964-08-11 Mallory & Co Inc P R Method of producing porous sintered tantalum anodes
US3114629A (en) * 1960-10-10 1963-12-17 Union Carbide Corp Production of columbium and tantalum
GB1094283A (en) * 1965-05-25 1967-12-06 Ciba Ltd Method for the manufacture of tantalum and/or niobium powder
CH457869A (en) * 1966-02-02 1968-06-15 Ciba Geigy Process for the production of tantalum metal powder, in particular for capacitor purposes

Also Published As

Publication number Publication date
US3647420A (en) 1972-03-07
DE1928149B2 (en) 1971-01-21
GB1266065A (en) 1972-03-08
DE1928149A1 (en) 1969-12-11
BE734012A (en) 1969-11-17
FR2010259A1 (en) 1970-02-13

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