GB1094283A - Method for the manufacture of tantalum and/or niobium powder - Google Patents

Method for the manufacture of tantalum and/or niobium powder

Info

Publication number
GB1094283A
GB1094283A GB14169/66A GB1416966A GB1094283A GB 1094283 A GB1094283 A GB 1094283A GB 14169/66 A GB14169/66 A GB 14169/66A GB 1416966 A GB1416966 A GB 1416966A GB 1094283 A GB1094283 A GB 1094283A
Authority
GB
United Kingdom
Prior art keywords
powder
chloride
metal
tantalum
manufacture
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.)
Expired
Application number
GB14169/66A
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
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 Ciba AG filed Critical Ciba AG
Publication of GB1094283A publication Critical patent/GB1094283A/en
Expired 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
    • H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
    • 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
    • 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
    • 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
    • B22F9/30—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis
    • 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
    • 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

Landscapes

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

Abstract

A method for producing Ta and/or Nb powder comprises reducing the metal oxide, chloride or oxychloride or mixtures thereof with Mg and/or Ca, optionally in the presence of alkali metal, and/or alkaline earth metal, chloride, washing the powder (e.g. with dilute HCl and then with water), mixing it with at most the stoichiometric amount of carbon and/or metal carbide for the formation of CO relative to the amount of oxygen present, sintering the mixture in vacuo at 1600 DEG -2200 DEG C., hydrogenating the sintered powder, grinding it and then dehydrogenating it. The powder so produced is said to be superior for use in the sintered anodes of electrolytic condensers to powders produced by prior art methods.
GB14169/66A 1965-05-25 1966-03-30 Method for the manufacture of tantalum and/or niobium powder Expired GB1094283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH727965 1965-05-25

Publications (1)

Publication Number Publication Date
GB1094283A true GB1094283A (en) 1967-12-06

Family

ID=4322630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14169/66A Expired GB1094283A (en) 1965-05-25 1966-03-30 Method for the manufacture of tantalum and/or niobium powder

Country Status (4)

Country Link
US (1) US3415639A (en)
BE (1) BE681427A (en)
GB (1) GB1094283A (en)
NL (1) NL6607155A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439264A (en) * 2014-12-19 2015-03-25 九江有色金属冶炼有限公司 Niobium bar preparation method and niobium bar prepared by same
CN106825589A (en) * 2016-12-30 2017-06-13 西安交通大学青岛研究院 A kind of mechanical alloying preparation method of niobium silica flour
CN107297497A (en) * 2017-06-21 2017-10-27 炎陵县今成钽铌有限公司 A kind of preparation technology of niobium bar
CN114210973A (en) * 2021-12-15 2022-03-22 宁夏东方钽业股份有限公司 Production method of tantalum powder and tantalum powder obtained by same

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH457869A (en) * 1966-02-02 1968-06-15 Ciba Geigy Process for the production of tantalum metal powder, in particular for capacitor purposes
JPS5241465B1 (en) * 1967-10-25 1977-10-18
CH515996A (en) * 1968-06-06 1971-11-30 Starck Hermann C Fa Process for the production of high-purity niobium and / or tantalum
US3473915A (en) * 1968-08-30 1969-10-21 Fansteel Inc Method of making tantalum metal powder
US3635693A (en) * 1969-01-27 1972-01-18 Starck Hermann C Fa Method of producing tantalum or niobium powder from compact bodies
US3914507A (en) * 1970-03-20 1975-10-21 Sherritt Gordon Mines Ltd Method of preparing metal alloy coated composite powders
US4062679A (en) * 1973-03-29 1977-12-13 Fansteel Inc. Embrittlement-resistant tantalum wire
US3867129A (en) * 1974-02-05 1975-02-18 Metallurgie Hoboken Anodically oxidizable metal powder
US4017302A (en) * 1976-02-04 1977-04-12 Fansteel Inc. Tantalum metal powder
US4445931A (en) * 1980-10-24 1984-05-01 The United States Of America As Represented By The Secretary Of The Interior Production of metal powder
US4508563A (en) * 1984-03-19 1985-04-02 Sprague Electric Company Reducing the oxygen content of tantalum
EP1075884A3 (en) * 1996-11-07 2005-10-05 Cabot Corporation Niobium powders and niobium electrolytic capacitors
IL145498A (en) * 1999-03-19 2005-05-17 Cabot Corp Making niobium and other metal powders by milling
WO2003106082A1 (en) * 2002-06-13 2003-12-24 財団法人生産技術研究奨励会 Method for producing metal powder and formed product of raw material for metal
CN117020215A (en) * 2021-12-15 2023-11-10 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

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA657781A (en) * 1963-02-12 Schussler Mortimer Tantalum powder and process for making same
US3203793A (en) * 1963-01-28 1965-08-31 Du Pont Porous columbium and tantalum materials
US3295951A (en) * 1965-02-02 1967-01-03 Nat Res Corp Production of metals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104439264A (en) * 2014-12-19 2015-03-25 九江有色金属冶炼有限公司 Niobium bar preparation method and niobium bar prepared by same
CN106825589A (en) * 2016-12-30 2017-06-13 西安交通大学青岛研究院 A kind of mechanical alloying preparation method of niobium silica flour
CN107297497A (en) * 2017-06-21 2017-10-27 炎陵县今成钽铌有限公司 A kind of preparation technology of niobium bar
CN114210973A (en) * 2021-12-15 2022-03-22 宁夏东方钽业股份有限公司 Production method of tantalum powder and tantalum powder obtained by same
WO2023109172A1 (en) * 2021-12-15 2023-06-22 宁夏东方钽业股份有限公司 Tantalum powder production method and tantalum powder obtained thereby

Also Published As

Publication number Publication date
US3415639A (en) 1968-12-10
BE681427A (en) 1966-11-23
NL6607155A (en) 1966-11-28

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