ZA200701902B - Deoxidisation of valve metal powders - Google Patents

Deoxidisation of valve metal powders

Info

Publication number: ZA200701902B
Authority: ZA; South Africa
Prior art keywords: deoxidisation; metal powders; valve metal; valve; powders
Prior art date: 2004-09-08

Application number

ZA200701902A

Inventor

Loeffelholz Josua

Bartmann Ulrich

Original Assignee

Starck H C Gmbh Co Kg

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.)

2004-09-08

Filing date

2007-03-05

Publication date

2008-08-27

2007-03-05 Application filed by Starck H C Gmbh Co Kg filed Critical Starck H C Gmbh Co Kg

2008-08-27 Publication of ZA200701902B publication Critical patent/ZA200701902B/en

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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
- 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
- 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
- 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
- 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
- H01G9/15—Solid electrolytic capacitors

Landscapes

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

ZA200701902A 2004-09-08 2007-03-05 Deoxidisation of valve metal powders ZA200701902B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102004043343A DE102004043343A1 (en)	2004-09-08	2004-09-08	Deoxidation of valve metal powders

Publications (1)

Publication Number	Publication Date
ZA200701902B true ZA200701902B (en)	2008-08-27

Family

ID=35445804

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ZA200701902A ZA200701902B (en)	2004-09-08	2007-03-05	Deoxidisation of valve metal powders

Country Status (15)

Country	Link
US (1)	US20080011124A1 (en)
EP (1)	EP1793950A2 (en)
JP (1)	JP2008512568A (en)
KR (1)	KR20070098988A (en)
CN (1)	CN101052488A (en)
AU (1)	AU2005281918A1 (en)
BR (1)	BRPI0515172A (en)
DE (1)	DE102004043343A1 (en)
IL (1)	IL181782A0 (en)
MX (1)	MX2007002717A (en)
RU (2)	RU2404881C2 (en)
SV (1)	SV2006002222A (en)
TW (1)	TW200624200A (en)
WO (1)	WO2006027119A2 (en)
ZA (1)	ZA200701902B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN101574741B (en) *	2009-06-25	2011-05-18	宁夏东方钽业股份有限公司	Preparation method of tantalum powder for capacitor
CN105377481B (en)	2014-02-27	2018-02-06	宁夏东方钽业股份有限公司	A kind of high-purity tantalum powder and preparation method thereof
FR3038623B1 (en) *	2015-07-10	2017-06-30	Fives	PROCESS FOR REMOVING OXIDES PRESENT AT THE SURFACE OF NODULES OF A METAL POWDER BEFORE USING THE SAME IN AN INDUSTRIAL PROCESS
CN107236868B (en)	2017-05-23	2019-02-26	东北大学	A method for preparing high melting point metal powder by multistage deep reduction
CN112828279B (en) *	2020-12-31	2022-08-12	昆明理工大学	A kind of metal powder gas phase deoxidation method
CN119287185B (en) *	2024-12-13	2025-03-14	河北睿阳稀有金属制品有限公司	A method for preparing low-oxygen high-purity metal hafnium

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL252366A (en) *	1958-06-13
US4141720A (en) *	1978-05-16	1979-02-27	Nrc, Inc.	Tantalum powder reclaiming
WO1986007097A1 (en) *	1985-05-27	1986-12-04	The University Of Melbourne	Metal halide reduction with molten sodium/potassium alloy
US4722756A (en) *	1987-02-27	1988-02-02	Cabot Corp	Method for deoxidizing tantalum material
US4923531A (en) *	1988-09-23	1990-05-08	Rmi Company	Deoxidation of titanium and similar metals using a deoxidant in a molten metal carrier
US5022935A (en) *	1988-09-23	1991-06-11	Rmi Titanium Company	Deoxidation of a refractory metal
EP0528974B1 (en) *	1990-05-17	1997-07-23	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
US5442978A (en) *	1994-05-19	1995-08-22	H. C. Starck, Inc.	Tantalum production via a reduction of K2TAF7, with diluent salt, with reducing agent provided in a fast series of slug additions
US5993513A (en) *	1996-04-05	1999-11-30	Cabot Corporation	Method for controlling the oxygen content in valve metal materials
US6051326A (en) *	1997-04-26	2000-04-18	Cabot Corporation	Valve metal compositions and method
WO2000067936A1 (en) *	1998-05-06	2000-11-16	H.C. Starck, Inc.	Metal powders produced by the reduction of the oxides with gaseous magnesium
DE19847012A1 (en) *	1998-10-13	2000-04-20	Starck H C Gmbh Co Kg	Niobium powder and process for its manufacture
US6558447B1 (en) *	1999-05-05	2003-05-06	H.C. Starck, Inc.	Metal powders produced by the reduction of the oxides with gaseous magnesium
DE19953946A1 (en) *	1999-11-09	2001-05-10	Starck H C Gmbh Co Kg	Capacitor powder
DE10030387A1 (en) *	2000-06-21	2002-01-03	Starck H C Gmbh Co Kg	capacitor powder
US20030104923A1 (en) *	2001-05-15	2003-06-05	Showa Denko K.K.	Niobium oxide powder, niobium oxide sintered body and capacitor using the sintered body
JP2003013115A (en) *	2001-06-28	2003-01-15	Sumitomo Metal Mining Co Ltd	Method for producing niobium and / or tantalum powder
CN1169643C (en) *	2001-09-29	2004-10-06	宁夏东方钽业股份有限公司	Preparation method of high specific surface area tantalum powder and/or niobium powder
JP3610942B2 (en) *	2001-10-12	2005-01-19	住友金属鉱山株式会社	Method for producing niobium and / or tantalum powder
DE10307716B4 (en) *	2002-03-12	2021-11-18	Taniobis Gmbh	Valve metal powders and processes for their manufacture
US6802884B2 (en) *	2002-05-21	2004-10-12	H.C. Starck, Inc.	Tantalum-silicon and niobium-silicon substrates for capacitor anodes
BR0204587A (en) *	2002-11-04	2004-06-29	Cbmm Sa	High Surface Area Niobium and / or Tantalum Powder Production Process

2002
- 2002-08-26 US US11/574,675 patent/US20080011124A1/en not_active Abandoned
2004
- 2004-09-08 DE DE102004043343A patent/DE102004043343A1/en not_active Withdrawn
2005
- 2005-08-26 BR BRPI0515172-4A patent/BRPI0515172A/en not_active IP Right Cessation
- 2005-08-26 RU RU2007112796/02A patent/RU2404881C2/en not_active IP Right Cessation
- 2005-08-26 EP EP05782917A patent/EP1793950A2/en not_active Withdrawn
- 2005-08-26 KR KR1020077007633A patent/KR20070098988A/en not_active Withdrawn
- 2005-08-26 WO PCT/EP2005/009230 patent/WO2006027119A2/en not_active Ceased
- 2005-08-26 CN CNA200580037624XA patent/CN101052488A/en active Pending
- 2005-08-26 AU AU2005281918A patent/AU2005281918A1/en not_active Abandoned
- 2005-08-26 MX MX2007002717A patent/MX2007002717A/en unknown
- 2005-08-26 JP JP2007530614A patent/JP2008512568A/en not_active Withdrawn
- 2005-09-07 TW TW094130621A patent/TW200624200A/en unknown
- 2005-09-08 SV SV2005002222A patent/SV2006002222A/en unknown
2007
- 2007-03-05 ZA ZA200701902A patent/ZA200701902B/en unknown
- 2007-03-07 IL IL181782A patent/IL181782A0/en unknown
2010
- 2010-04-23 RU RU2010116085/02A patent/RU2010116085A/en not_active Application Discontinuation

Also Published As

Publication number	Publication date
WO2006027119A3 (en)	2006-06-15
SV2006002222A (en)	2006-05-25
DE102004043343A1 (en)	2006-03-23
WO2006027119A2 (en)	2006-03-16
CN101052488A (en)	2007-10-10
BRPI0515172A (en)	2008-07-08
EP1793950A2 (en)	2007-06-13
TW200624200A (en)	2006-07-16
AU2005281918A1 (en)	2006-03-16
US20080011124A1 (en)	2008-01-17
RU2010116085A (en)	2011-10-27
KR20070098988A (en)	2007-10-08
RU2404881C2 (en)	2010-11-27
MX2007002717A (en)	2008-03-11
RU2007112796A (en)	2008-10-20
JP2008512568A (en)	2008-04-24
IL181782A0 (en)	2007-07-04

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