BR0304252A - Production Process of Niobium Monoxide Powder, Niobium Monoxide, and Capacitor - Google Patents

Production Process of Niobium Monoxide Powder, Niobium Monoxide, and Capacitor

Info

Publication number
BR0304252A
BR0304252A BR0304252-9A BR0304252A BR0304252A BR 0304252 A BR0304252 A BR 0304252A BR 0304252 A BR0304252 A BR 0304252A BR 0304252 A BR0304252 A BR 0304252A
Authority
BR
Brazil
Prior art keywords
niobium
nbo
monoxide
niobium monoxide
capacitor
Prior art date
Application number
BR0304252-9A
Other languages
Portuguese (pt)
Other versions
BR0304252B1 (en
Inventor
Solon Yasuhiko Tagusagawa
Alberto Akikazu Ono
Flavio Beneduce Neto
Joao Batista Ferreira Neto
Original Assignee
Cbmm Sa
Ipt Inst De Pesquisas Tecnolog
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, Ipt Inst De Pesquisas Tecnolog filed Critical Cbmm Sa
Priority to BRPI0304252-9A priority Critical patent/BR0304252B1/en
Priority to JP2006527231A priority patent/JP2007506634A/en
Priority to PCT/BR2004/000003 priority patent/WO2005028370A1/en
Priority to GB0605986A priority patent/GB2421945A/en
Priority to CNA2004800277767A priority patent/CN1856446A/en
Priority to DE112004001796T priority patent/DE112004001796T5/en
Publication of BR0304252A publication Critical patent/BR0304252A/en
Publication of BR0304252B1 publication Critical patent/BR0304252B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00Compounds of niobium
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/04Electrodes or formation of dielectric layers thereon
    • H01G9/048Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/052Sintered electrodes
    • H01G9/0525Powder therefor
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/01Particle morphology depicted by an image
    • C01P2004/03Particle morphology depicted by an image obtained by SEM
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/12Surface area
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/14Pore volume
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/40Electric properties
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

"PROCESSO DE PRODUçãO DE Pó DE MONóXIDO DE NIóBIO, MONóXIDO DE NIóBIO, E, CAPACITOR". A presente invenção refere-se ao processo de produção de pó de monóxido de nióbio (NbO) de elevada pureza, elevada superfície específica, teores de oxigênio e nitrogênio controlados e morfologia apropriada para ser usada na fabricação de capacitores, caracterizado por duas etapas de redução do pentóxido de nióbio (Nb~ 2~ O~ 5~), sendo a primeira etapa de redução por hidrogênio do pentóxido de nióbio (Nb~ 2~ O~ 5~) para dióxido de nióbio (NbO~ 2~), e a segunda etapa de redução de dióxido de nióbio (NbO~ 2~) para monóxido de nióbio (NbO), através do uso de um material coletor de oxigênio numa atmosfera conveniente que permita a transferência dos átomos de oxigênio do dióxido de nióbio (NbO~ 2~) para o material coletor, sob condições adequadas de tempo e temperatura para a formação do monóxido de nióbio (NbO). As particulas de pó de monóxido de nióbio (NbO) produzidas com o presente processo são de tamanho reduzido, têm elevada área superficial e morfologia apropriada, sendo adequadas para a produção de capacitores."NIOBIO MONOXIDE, NIOBIO MONOXIDE, AND CAPACITOR PRODUCTION PROCESS". The present invention relates to the process of producing high purity, high specific surface niobium monoxide (NbO) powder, controlled oxygen and nitrogen contents and suitable morphology for use in capacitor manufacturing, characterized by two reduction steps. niobium pentoxide (Nb ~ 2 ~ O ~ 5 ~), the first step being the hydrogen reduction of niobium pentoxide (Nb ~ 2 ~ O ~ 5 ~) to niobium dioxide (NbO ~ 2 ~), and the The second step is to reduce niobium dioxide (NbO ~ 2 ~) to niobium monoxide (NbO) by using an oxygen collecting material in a convenient atmosphere that allows the transfer of oxygen atoms from niobium dioxide (NbO ~ 2). ~) for the collecting material under appropriate time and temperature conditions for the formation of niobium monoxide (NbO). The niobium monoxide (NbO) dust particles produced with the present process are small in size, have high surface area and appropriate morphology and are suitable for capacitor production.

BRPI0304252-9A 2003-09-25 2003-09-25 production process of niobium monoxide powder, niobium monoxide, and capacitor. BR0304252B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BRPI0304252-9A BR0304252B1 (en) 2003-09-25 2003-09-25 production process of niobium monoxide powder, niobium monoxide, and capacitor.
JP2006527231A JP2007506634A (en) 2003-09-25 2004-01-23 Preparation of niobium oxide powder for use in capacitors
PCT/BR2004/000003 WO2005028370A1 (en) 2003-09-25 2004-01-23 A process for the production of niobium oxide power for use in capacitors
GB0605986A GB2421945A (en) 2003-09-25 2004-01-23 A process for the production of niobium oxide power for use in capacitors
CNA2004800277767A CN1856446A (en) 2003-09-25 2004-01-23 A process for the production of niobium oxide power for use in capacitors
DE112004001796T DE112004001796T5 (en) 2003-09-25 2004-01-23 A process for the production of niobium oxide powder for use in capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0304252-9A BR0304252B1 (en) 2003-09-25 2003-09-25 production process of niobium monoxide powder, niobium monoxide, and capacitor.

Publications (2)

Publication Number Publication Date
BR0304252A true BR0304252A (en) 2005-05-31
BR0304252B1 BR0304252B1 (en) 2013-05-14

Family

ID=34318717

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0304252-9A BR0304252B1 (en) 2003-09-25 2003-09-25 production process of niobium monoxide powder, niobium monoxide, and capacitor.

Country Status (6)

Country Link
JP (1) JP2007506634A (en)
CN (1) CN1856446A (en)
BR (1) BR0304252B1 (en)
DE (1) DE112004001796T5 (en)
GB (1) GB2421945A (en)
WO (1) WO2005028370A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2007016540A (en) * 2005-06-03 2008-03-11 Starck H C Gmbh Niobium suboxides.
JPWO2008001774A1 (en) * 2006-06-26 2009-11-26 三井金属鉱業株式会社 Niobium oxide production method and niobium monoxide
JP5046572B2 (en) * 2006-06-26 2012-10-10 三井金属鉱業株式会社 Niobium monoxide
WO2009012124A2 (en) * 2007-07-18 2009-01-22 Cabot Corporation Niobium suboxide- and niobium-tantalum-oxide-powders and capacitor anodes produced thereof
CN100577574C (en) 2007-08-25 2010-01-06 宁夏东方钽业股份有限公司 Method for preparing low chemical valence niobium oxide or niobium powder
CN108046323B (en) * 2017-12-20 2019-08-02 广东省稀有金属研究所 A kind of preparation method of niobium oxide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6391275B1 (en) * 1998-09-16 2002-05-21 Cabot Corporation Methods to partially reduce a niobium metal oxide and oxygen reduced niobium oxides
US6416730B1 (en) * 1998-09-16 2002-07-09 Cabot Corporation Methods to partially reduce a niobium metal oxide oxygen reduced niobium oxides
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
BR0204587A (en) * 2002-11-04 2004-06-29 Cbmm Sa High Surface Area Niobium and / or Tantalum Powder Production Process

Also Published As

Publication number Publication date
BR0304252B1 (en) 2013-05-14
WO2005028370A1 (en) 2005-03-31
CN1856446A (en) 2006-11-01
GB0605986D0 (en) 2006-05-03
GB2421945A (en) 2006-07-12
JP2007506634A (en) 2007-03-22
DE112004001796T5 (en) 2006-09-07

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: IPT - INSTITUTO DE PESQUISAS TECNOLOGICAS DO ESTAD

Free format text: TRANSFERIDO DE: CBMM - COMPANHIA BRASILEIRA DE METALURGIA E MINERACAO.

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/09/2003, OBSERVADAS AS CONDICOES LEGAIS.

B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO DE: H01G 4/00 PARA: C01G 33/00

Ipc: C01G 33/00 (2006.01)

B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: H01G 4/00

Ipc: C01G 33/00 (2006.01)

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 13A ANUIDADE.

B21H Decision of lapse of a patent or of a certificate of addition of invention cancelled [chapter 21.8 patent gazette]
B24B Patent annual fee: requirement for complementing annual fee
B24D Patent annual fee: restoration after fee payment