GB2410251B - Valve metal powders and process for producing them - Google Patents

Valve metal powders and process for producing them

Info

Publication number
GB2410251B
GB2410251B GB0508078A GB0508078A GB2410251B GB 2410251 B GB2410251 B GB 2410251B GB 0508078 A GB0508078 A GB 0508078A GB 0508078 A GB0508078 A GB 0508078A GB 2410251 B GB2410251 B GB 2410251B
Authority
GB
United Kingdom
Prior art keywords
producing
metal powders
valve metal
valve
powders
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 - Lifetime
Application number
GB0508078A
Other versions
GB2410251B8 (en
GB2410251A (en
GB2410251A8 (en
GB0508078D0 (en
Inventor
Josua Loeffelholz
Hady Seveda
Ruediger Wolf
Karlheinz Reichert
Christoph Schnitter
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.)
HC Starck GmbH
Original Assignee
HC Starck GmbH
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 HC Starck GmbH filed Critical HC Starck GmbH
Priority claimed from GB0305574A external-priority patent/GB2390375B/en
Publication of GB0508078D0 publication Critical patent/GB0508078D0/en
Publication of GB2410251A publication Critical patent/GB2410251A/en
Publication of GB2410251B publication Critical patent/GB2410251B/en
Application granted granted Critical
Publication of GB2410251B8 publication Critical patent/GB2410251B8/en
Publication of GB2410251A8 publication Critical patent/GB2410251A8/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00—Compounds of niobium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G35/00—Compounds of tantalum
    • 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
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • 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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Powder Metallurgy (AREA)
GB0508078.3A 2002-03-12 2003-03-11 Valve metal powders and process for producing them Expired - Lifetime GB2410251B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10210876 2002-03-12
GB0305574A GB2390375B (en) 2002-03-12 2003-03-11 Valve metal powders and process for producing them

Publications (5)

Publication Number Publication Date
GB0508078D0 GB0508078D0 (en) 2005-06-01
GB2410251A GB2410251A (en) 2005-07-27
GB2410251B true GB2410251B (en) 2006-04-05
GB2410251B8 GB2410251B8 (en) 2018-07-25
GB2410251A8 GB2410251A8 (en) 2018-07-25

Family

ID=34740453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0508078.3A Expired - Lifetime GB2410251B8 (en) 2002-03-12 2003-03-11 Valve metal powders and process for producing them

Country Status (1)

Country Link
GB (1) GB2410251B8 (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201427A (en) * 1987-02-27 1988-09-01 Cabot Corp Method for deoxidising tantalum/columbium material
US5986877A (en) * 1996-04-25 1999-11-16 Cabot Corporation Tantalum metal power with controlled size distribution and products made therefrom
WO2000015556A1 (en) * 1998-09-16 2000-03-23 Cabot Corporation Methods to partially reduce certain metal oxides and oxygen reduced metal oxides
US6136062A (en) * 1998-10-13 2000-10-24 H. C. Starck Gmbh & Co. Kg Niobium powder and a process for the production of niobium and/or tantalum powders
WO2000067936A1 (en) * 1998-05-06 2000-11-16 H.C. Starck, Inc. Metal powders produced by the reduction of the oxides with gaseous magnesium
US6193779B1 (en) * 1997-02-19 2001-02-27 H. C. Starck Gmbh & Co. Kg Tantalum powder, method for producing same powder and sintered anodes obtained from it
WO2001015555A1 (en) * 1999-08-31 2001-03-08 Japan Tobacco Inc. Method of fixing perfume for improving odor of secondary smoke from cigarette and cigarette
US6238456B1 (en) * 1997-02-19 2001-05-29 H. C. Starck Gmbh & Co. Kg Tantalum powder, method for producing same powder and sintered anodes obtained from it
WO2001071738A2 (en) * 2000-03-23 2001-09-27 Cabot Corporation Oxygen reduced niobium oxides
WO2001082318A2 (en) * 2000-04-21 2001-11-01 Showa Denko K.K. Niobium sintered body, production method therefor, and capacitor using the same
WO2002035563A2 (en) * 2000-10-26 2002-05-02 Showa Denko K.K. Powder for capacitor, sintered body and capacitor using the sintered body

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201427A (en) * 1987-02-27 1988-09-01 Cabot Corp Method for deoxidising tantalum/columbium material
US5986877A (en) * 1996-04-25 1999-11-16 Cabot Corporation Tantalum metal power with controlled size distribution and products made therefrom
US6193779B1 (en) * 1997-02-19 2001-02-27 H. C. Starck Gmbh & Co. Kg Tantalum powder, method for producing same powder and sintered anodes obtained from it
US6238456B1 (en) * 1997-02-19 2001-05-29 H. C. Starck Gmbh & Co. Kg Tantalum powder, method for producing same powder and sintered anodes obtained from it
WO2000067936A1 (en) * 1998-05-06 2000-11-16 H.C. Starck, Inc. Metal powders produced by the reduction of the oxides with gaseous magnesium
WO2000015556A1 (en) * 1998-09-16 2000-03-23 Cabot Corporation Methods to partially reduce certain metal oxides and oxygen reduced metal oxides
US6136062A (en) * 1998-10-13 2000-10-24 H. C. Starck Gmbh & Co. Kg Niobium powder and a process for the production of niobium and/or tantalum powders
WO2001015555A1 (en) * 1999-08-31 2001-03-08 Japan Tobacco Inc. Method of fixing perfume for improving odor of secondary smoke from cigarette and cigarette
WO2001071738A2 (en) * 2000-03-23 2001-09-27 Cabot Corporation Oxygen reduced niobium oxides
WO2001082318A2 (en) * 2000-04-21 2001-11-01 Showa Denko K.K. Niobium sintered body, production method therefor, and capacitor using the same
WO2002035563A2 (en) * 2000-10-26 2002-05-02 Showa Denko K.K. Powder for capacitor, sintered body and capacitor using the sintered body

Also Published As

Publication number Publication date
GB2410251B8 (en) 2018-07-25
GB2410251A (en) 2005-07-27
GB2410251A8 (en) 2018-07-25
GB0508078D0 (en) 2005-06-01

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Legal Events

Date Code Title Description
S117 Correction of errors in patents and applications (sect. 117/patents act 1977)

Free format text: REQUEST FILED; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 15 JUNE 2018

S117 Correction of errors in patents and applications (sect. 117/patents act 1977)

Free format text: CORRECTIONS ALLOWED; REQUEST FOR CORRECTION UNDER SECTION 117 FILED ON 15 JUNE 2018 ALLOWED ON 18 JULY 2018

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20181011 AND 20181017

PE20 Patent expired after termination of 20 years

Expiry date: 20230310