BR0204587A - Processo de produção de pó de nióbio e/ou de tântalo de elevada área superficial - Google Patents

Processo de produção de pó de nióbio e/ou de tântalo de elevada área superficial

Info

Publication number
BR0204587A
BR0204587A BR0204587-7A BR0204587A BR0204587A BR 0204587 A BR0204587 A BR 0204587A BR 0204587 A BR0204587 A BR 0204587A BR 0204587 A BR0204587 A BR 0204587A
Authority
BR
Brazil
Prior art keywords
niobium
surface area
high surface
tantalum powder
tantalum
Prior art date
Application number
BR0204587-7A
Other languages
English (en)
Inventor
Solon Yasuhiko Tagusagawa
Original Assignee
Cbmm Sa
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 Cbmm Sa filed Critical Cbmm Sa
Priority to BR0204587-7A priority Critical patent/BR0204587A/pt
Priority to AU2003254646A priority patent/AU2003254646A1/en
Priority to GB0508844A priority patent/GB2409466B/en
Priority to DE10393407T priority patent/DE10393407T5/de
Priority to CNA038248115A priority patent/CN1694973A/zh
Priority to US10/533,791 priority patent/US20060096418A1/en
Priority to PCT/BR2003/000122 priority patent/WO2004042095A1/en
Priority to JP2004548947A priority patent/JP2006516039A/ja
Publication of BR0204587A publication Critical patent/BR0204587A/pt

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
    • H01G9/048—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
    • 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
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • 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
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1263—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction
    • C22B34/1268—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction using alkali or alkaline-earth metals or amalgams
    • 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
    • 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
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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

Landscapes

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

Abstract

"PROCESSO DE PRODUçãO DE Pó DE NIóBIO E/OU DE TâNTALO DE ELEVADA áREA SUPERFICIAL". A presente invenção refere-se a um processo de produção de pó de nióbio e/ou de tântalo de elevada pureza, elevada superfície específica, teores de oxigênio e nitrogênio controlados, e morfologia apropriada para ser usada na fabricação de capacitores, caracterizado por uma única etapa de redução de uma camada controlada de óxido de nióbio e/ou de tântalo (Nb~ x~O~ Y~, e/ou Ta~ x~,O~ y~, onde x = 1 a 2 e y = 1 a 5) propositalmente formada sobre partículas de nióbio e/ou de tântalo metálico e/ou seus hidretos de pureza adequada, por metais e/ou hidretos de metais alcalinos ou alcalino terrosos em um banho de sais fundidos seguido de uma etapa de dissolução do sal em uma solução aquosa para recuperação do pó de nióbio e/ou de tântalo. Estas partículas produzidas com o presente processo são de tamanho reduzido, têm elevada área superficial e morfologia esponjosa, sendo adequadas para a produção de capacitores.
BR0204587-7A 2002-11-04 2002-11-04 Processo de produção de pó de nióbio e/ou de tântalo de elevada área superficial BR0204587A (pt)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BR0204587-7A BR0204587A (pt) 2002-11-04 2002-11-04 Processo de produção de pó de nióbio e/ou de tântalo de elevada área superficial
AU2003254646A AU2003254646A1 (en) 2002-11-04 2003-08-27 A process for the production of niobium and/or tantalum powder with large surface area
GB0508844A GB2409466B (en) 2002-11-04 2003-08-27 A process for the production of niobium and/or tantalum powder with large surface area
DE10393407T DE10393407T5 (de) 2002-11-04 2003-08-27 Ein Verfahren zur Herstellung von Niob- und/oder Tantalpulver mit großer Oberfläche
CNA038248115A CN1694973A (zh) 2002-11-04 2003-08-27 生产具有大表面积的铌和/或钽粉末的方法
US10/533,791 US20060096418A1 (en) 2002-11-04 2003-08-27 Process for the production of niobium and/or tantalum powder with large surface area
PCT/BR2003/000122 WO2004042095A1 (en) 2002-11-04 2003-08-27 A process for the production of niobium and/or tantalum powder with large surface area
JP2004548947A JP2006516039A (ja) 2002-11-04 2003-08-27 大きな表面積を有するニオブ粉末及び／又はタンタル粉末の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR0204587-7A BR0204587A (pt) 2002-11-04 2002-11-04 Processo de produção de pó de nióbio e/ou de tântalo de elevada área superficial

Publications (1)

Publication Number Publication Date
BR0204587A true BR0204587A (pt) 2004-06-29

Family

ID=32303987

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0204587-7A BR0204587A (pt) 2002-11-04 2002-11-04 Processo de produção de pó de nióbio e/ou de tântalo de elevada área superficial

Country Status (8)

Country Link
US (1) US20060096418A1 (pt)
JP (1) JP2006516039A (pt)
CN (1) CN1694973A (pt)
AU (1) AU2003254646A1 (pt)
BR (1) BR0204587A (pt)
DE (1) DE10393407T5 (pt)
GB (1) GB2409466B (pt)
WO (1) WO2004042095A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
BR0304252B1 (pt) * 2003-09-25 2013-05-14 processo de produÇço de pà de monàxido de niàbio, monàxido de niàbio, e, capacitor.
US20080011124A1 (en) * 2004-09-08 2008-01-17 H.C. Starck Gmbh & Co. Kg Deoxidation of Valve Metal Powders
US7399335B2 (en) 2005-03-22 2008-07-15 H.C. Starck Inc. Method of preparing primary refractory metal
DK2054901T3 (da) * 2006-08-16 2020-01-20 H C Starck Tantalum And Niobium Gmbh Halvfærdige produkter med en struktureret sinteraktiv overflade og fremgangsmåde til fremstilling af disse
GB0902486D0 (en) * 2009-02-13 2009-04-01 Metalysis Ltd A method for producing metal powders
WO2012158592A2 (en) * 2011-05-16 2012-11-22 Boston Electronic Materials, Llc Manufacturing and applications of metal powders and alloys
GB201218675D0 (en) * 2012-10-17 2012-11-28 Univ Bradford Improved method for metal production
KR101911871B1 (ko) * 2016-12-23 2018-10-29 한국기초과학지원연구원 탄탈륨 분말의 제조방법
CN108217596B (zh) * 2018-01-29 2021-03-30 吉林大学 使用非氢源溶液法制备铌氢化物和钽氢化物的方法
KR102359159B1 (ko) * 2019-12-30 2022-02-08 충남대학교산학협력단 연소 반응을 이용한 금속 나노분말 제조방법
CN113500204A (zh) * 2021-07-08 2021-10-15 安徽理工大学 一种氯化钙熔盐中钙热还原氯化铌制备细微铌粉的方法

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Publication number Priority date Publication date Assignee Title
US1728941A (en) 1927-02-19 1929-09-24 Westinghouse Lamp Co Production of rare metals
US2516863A (en) 1946-07-15 1950-08-01 Gardner Daniel Process of producing tantalum, columbium, and compounds thereof
US4487677A (en) * 1983-04-11 1984-12-11 Metals Production Research, Inc. Electrolytic recovery system for obtaining titanium metal from its ore
US4687632A (en) 1984-05-11 1987-08-18 Hurd Frank W Metal or alloy forming reduction process and apparatus
FR2595101A1 (fr) 1986-02-28 1987-09-04 Rhone Poulenc Chimie Procede de preparation par lithiothermie de poudres metalliques
US4684399A (en) 1986-03-04 1987-08-04 Cabot Corporation Tantalum powder process
US4923531A (en) * 1988-09-23 1990-05-08 Rmi Company Deoxidation of titanium and similar metals using a deoxidant in a molten metal carrier
ES2020131A6 (es) * 1989-06-26 1991-07-16 Cabot Corp Procedimiento para la produccion de polvos de tantalo, niobio y sus aleaciones.
US5234491A (en) * 1990-05-17 1993-08-10 Cabot Corporation Method of producing high surface area, low metal impurity
DE19831280A1 (de) 1998-07-13 2000-01-20 Starck H C Gmbh Co Kg Verfahren zur Herstellung von Erdsäuremetallpulvern, insbesondere Niobpulvern
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
US6416730B1 (en) 1998-09-16 2002-07-09 Cabot Corporation Methods to partially reduce a niobium metal oxide oxygen reduced niobium oxides
DE19847012A1 (de) * 1998-10-13 2000-04-20 Starck H C Gmbh Co Kg Niobpulver und Verfahren zu dessen Herstellung
JP2001143970A (ja) * 1999-11-16 2001-05-25 Showa Kyabotto Super Metal Kk タンタル粉末およびその製造方法と、このタンタル粉末を用いた多孔質焼結体および固体電解コンデンサー
US6563695B1 (en) * 1999-11-16 2003-05-13 Cabot Supermetals K.K. Powdered tantalum, niobium, production process thereof, and porous sintered body and solid electrolytic capacitor using the powdered tantalum or niobium
JP4049964B2 (ja) * 2000-02-08 2008-02-20 キャボットスーパーメタル株式会社 窒素含有金属粉末およびその製造方法ならびにそれを用いた多孔質焼結体および固体電解コンデンサー
US6835225B2 (en) 2000-04-21 2004-12-28 Showa Denko K.K. Niobium sintered body, production method therefor, and capacitor using the same
JP2004052003A (ja) * 2002-07-16 2004-02-19 Cabot Supermetal Kk ニオブ粉末またはタンタル粉末の製造方法および製造装置

Also Published As

Publication number Publication date
GB2409466B (en) 2006-06-21
GB0508844D0 (en) 2005-06-08
US20060096418A1 (en) 2006-05-11
DE10393407T5 (de) 2005-10-06
GB2409466A (en) 2005-06-29
JP2006516039A (ja) 2006-06-15
WO2004042095A1 (en) 2004-05-21
AU2003254646A1 (en) 2004-06-07
CN1694973A (zh) 2005-11-09

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A E 7A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2029 DE 24/11/2009.