BRPI0515930A - remoção de magnésio de pós metálicos com teor de magnésio reduzido - Google Patents

remoção de magnésio de pós metálicos com teor de magnésio reduzido

Info

Publication number
BRPI0515930A
BRPI0515930A BRPI0515930-0A BRPI0515930A BRPI0515930A BR PI0515930 A BRPI0515930 A BR PI0515930A BR PI0515930 A BRPI0515930 A BR PI0515930A BR PI0515930 A BRPI0515930 A BR PI0515930A
Authority
BR
Brazil
Prior art keywords
magnesium
powder
removal
tantalate
heating
Prior art date
Application number
BRPI0515930-0A
Other languages
English (en)
Inventor
Leonid Natan Shekhter
Lanin Leonid
Anastasia M Conlon
Original Assignee
Starck H C Inc
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 Starck H C Inc filed Critical Starck H C Inc
Publication of BRPI0515930A publication Critical patent/BRPI0515930A/pt
Publication of BRPI0515930B1 publication Critical patent/BRPI0515930B1/pt
Publication of BRPI0515930B8 publication Critical patent/BRPI0515930B8/pt

Links

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
    • C22B5/04—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
    • 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
    • B22F9/18—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
    • 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
    • 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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20—Obtaining alkaline earth metals or magnesium
    • C22B26/22—Obtaining magnesium

Landscapes

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

Abstract

"REMOçãO DE MAGNéSIO DE PóS METáLICOS COM TEOR DE MAGNéSIO REDUZIDO". A presente invenção refere-se a um método de produção de um pó de metal refretário que inclui proporcionar um pó de metal contendo tantalato de magnésio ou niobato de magnésio; e aquecer o pó em uma atmosfera inerte na presença de magnésio, cálcio e/ou alumínio até uma temperatura suficiente para remover tantalato de magnésio ou niobato de magnésio do pó e/ou aquecer o pó sob vácuo até uma temperatura suficiente para remover tantalato de magnésio ou niobato de magnésio do pó, as etapas de aquecimento sendo efetuadas em qualquer ordem. o pó de metal pode ser conformado em péletes sob uma temperatura de sinterização apropriada, os quais podem ser conformados em capacitores eletrolíticos.
BRPI0515930A 2004-09-29 2005-09-19 método para produção de um pó de metal refratário BRPI0515930B8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/953,163 US7431751B2 (en) 2004-09-29 2004-09-29 Magnesium removal from magnesium reduced metal powders
PCT/US2005/033291 WO2006039126A2 (en) 2004-09-29 2005-09-19 Magnesium removal from magnesium reduced metal powders

Publications (3)

Publication Number Publication Date
BRPI0515930A true BRPI0515930A (pt) 2008-08-12
BRPI0515930B1 BRPI0515930B1 (pt) 2016-04-05
BRPI0515930B8 BRPI0515930B8 (pt) 2017-08-01

Family

ID=35900026

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0515930A BRPI0515930B8 (pt) 2004-09-29 2005-09-19 método para produção de um pó de metal refratário

Country Status (13)

Country Link
US (1) US7431751B2 (pt)
EP (1) EP1799380B1 (pt)
JP (1) JP5124275B2 (pt)
KR (1) KR20070059185A (pt)
CN (1) CN101065206A (pt)
AU (1) AU2005292446B2 (pt)
BR (1) BRPI0515930B8 (pt)
CA (1) CA2581749A1 (pt)
IL (1) IL182114A0 (pt)
RU (1) RU2406593C2 (pt)
SV (1) SV2006002244A (pt)
TW (1) TW200624566A (pt)
WO (1) WO2006039126A2 (pt)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080105082A1 (en) * 2004-09-29 2008-05-08 Shekhter Leonid N Magnesium Removal From Magnesium Reduced Metal Powders
CN101268205A (zh) 2005-09-16 2008-09-17 H.C.施塔克有限公司 还原方法
GB0622463D0 (en) * 2006-11-10 2006-12-20 Avx Ltd Powder modification in the manufacture of solid state capacitor anodes
CA2861581C (en) 2011-12-30 2021-05-04 Scoperta, Inc. Coating compositions
CN102779656A (zh) * 2012-07-10 2012-11-14 中国振华（集团）新云电子元器件有限责任公司 一种降低钽电容器漏电流值的烧结方法
CN102965525B (zh) * 2012-12-05 2013-11-27 江门富祥电子材料有限公司 钽粉镁还原降氧装置及钽粉镁还原降氧方法
GB201411433D0 (en) 2014-06-26 2014-08-13 Metalysis Ltd Method and apparatus for electrolytic reduction of a feedstock comprising oxygen and a first metal
GB201411430D0 (en) * 2014-06-26 2014-08-13 Metalysis Ltd Method of producing metallic tanralum
GB2534332A (en) * 2014-06-26 2016-07-27 Metalysis Ltd Method and apparatus for producing metallic tantalum by electrolytic reduction of a feedstock
US10290430B2 (en) 2014-11-24 2019-05-14 Avx Corporation Wet Electrolytic Capacitor for an Implantable Medical Device
WO2016138001A1 (en) * 2015-02-23 2016-09-01 Nanoscale Powders LLC Methods for producing metal powders
CN108350528B (zh) 2015-09-04 2020-07-10 思高博塔公司 无铬和低铬耐磨合金
WO2019113055A1 (en) 2017-12-05 2019-06-13 Avx Corporation Wet electrolytic capacitor for an implantable medical device
CA3095046A1 (en) 2018-03-29 2019-10-03 Oerlikon Metco (Us) Inc. Reduced carbides ferrous alloys
JP7641218B2 (ja) 2018-10-26 2025-03-06 エリコン メテコ（ユーエス）インコーポレイテッド 耐食性かつ耐摩耗性のニッケル系合金
CN113631750A (zh) 2019-03-28 2021-11-09 欧瑞康美科（美国）公司 用于涂布发动机气缸孔的热喷涂铁基合金
EP3962693A1 (en) 2019-05-03 2022-03-09 Oerlikon Metco (US) Inc. Powder feedstock for wear resistant bulk welding configured to optimize manufacturability
EP3997252B1 (en) 2019-07-09 2025-10-29 Oerlikon Metco (US) Inc. Iron-based alloys designed for wear and corrosion resistance
US11450486B2 (en) 2020-04-03 2022-09-20 Greatbatch Ltd. Electrolytic capacitor having a tantalum anode
US12119186B2 (en) 2020-04-03 2024-10-15 Greatbatch Ltd. Electrolytic capacitor having an anode formed from a tantalum powder with a relatively low specific charge
CN115747523A (zh) * 2022-11-18 2023-03-07 昆明理工大学 一种真空碳热还原炼镁的方法
CN117182091A (zh) * 2023-10-18 2023-12-08 郑州大学 一种气态金属还原法制备钽粉的装置及方法
CN119304196B (zh) * 2024-10-14 2026-01-02 郑州大学 钽铝合金的制备方法

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US1602542A (en) * 1921-01-06 1926-10-12 Westinghouse Lamp Co Reduction of rare-metal oxides
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
US2881067A (en) * 1955-02-28 1959-04-07 Onera (Off Nat Aerospatiale) Method of producing powder metals
NL252366A (pt) * 1958-06-13
US3658507A (en) * 1968-02-26 1972-04-25 Onera (Off Nat Aerospatiale) Process for the manufacture of chrome powder
CH515996A (de) * 1968-06-06 1971-11-30 Starck Hermann C Fa Verfahren zur Herstellung von hochreinem Niob und/oder Tantal
JPH0747787B2 (ja) 1989-05-24 1995-05-24 株式会社エヌ・ケイ・アール チタン粉末またはチタン複合粉末の製造方法
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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
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BRPI9917635B1 (pt) * 1998-05-06 2017-06-06 Starck H C Gmbh Co Kg pó de nióbio na forma de partículas aglomeradas primárias e método para a obtenção de um anodo de capacitor
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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
US6432161B1 (en) * 2000-02-08 2002-08-13 Cabot Supermetals K.K. Nitrogen-containing metal powder, production process thereof, and porous sintered body and solid electrolytic capacitor using the metal powder
US6849104B2 (en) * 2000-10-10 2005-02-01 H. C. Starck Inc. Metalothermic reduction of refractory metal oxides
CN1169643C (zh) * 2001-09-29 2004-10-06 宁夏东方钽业股份有限公司 高比表面积钽粉和/或铌粉的制备方法

Also Published As

Publication number Publication date
KR20070059185A (ko) 2007-06-11
SV2006002244A (es) 2006-05-25
RU2007115738A (ru) 2008-11-10
AU2005292446B2 (en) 2010-09-09
RU2406593C2 (ru) 2010-12-20
CN101065206A (zh) 2007-10-31
EP1799380A2 (en) 2007-06-27
IL182114A0 (en) 2007-07-24
EP1799380B1 (en) 2018-09-12
US7431751B2 (en) 2008-10-07
AU2005292446A1 (en) 2006-04-13
TW200624566A (en) 2006-07-16
CA2581749A1 (en) 2006-04-13
WO2006039126A2 (en) 2006-04-13
WO2006039126A3 (en) 2006-07-20
JP2008514822A (ja) 2008-05-08
BRPI0515930B8 (pt) 2017-08-01
BRPI0515930B1 (pt) 2016-04-05
US20060065073A1 (en) 2006-03-30
JP5124275B2 (ja) 2013-01-23

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
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: 10 (DEZ) ANOS CONTADOS A PARTIR DE 05/04/2016, OBSERVADAS AS CONDICOES LEGAIS.

B16C Correction of notification of the grant [chapter 16.3 patent gazette]
B25A Requested transfer of rights approved
B25A Requested transfer of rights approved
B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 19A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2793 DE 16-07-2024 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.