[go: up one dir, main page]

BR9500498A - Processo para o isolamento de tântalo e nióbio - Google Patents

Processo para o isolamento de tântalo e nióbio

Info

Publication number
BR9500498A
BR9500498A BR9500498A BR9500498A BR9500498A BR 9500498 A BR9500498 A BR 9500498A BR 9500498 A BR9500498 A BR 9500498A BR 9500498 A BR9500498 A BR 9500498A BR 9500498 A BR9500498 A BR 9500498A
Authority
BR
Brazil
Prior art keywords
niobium
tantalum
isolation
Prior art date
Application number
BR9500498A
Other languages
English (en)
Inventor
Walter Dr Bludssus
Joachim Dr Eckert
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.)
Filing date
Publication date
Application filed by Starck H C Gmbh Co Kg filed Critical Starck H C Gmbh Co Kg
Publication of BR9500498A publication Critical patent/BR9500498A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G33/00—Compounds of niobium
    • C01G33/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G35/00—Compounds of tantalum
    • C01G35/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/306—Ketones or aldehydes
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
BR9500498A 1994-02-11 1995-02-10 Processo para o isolamento de tântalo e nióbio BR9500498A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4404374A DE4404374C1 (de) 1994-02-11 1994-02-11 Verfahren zur Gewinnung und Trennung von Tantal und Niob

Publications (1)

Publication Number Publication Date
BR9500498A true BR9500498A (pt) 1995-10-17

Family

ID=6510044

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9500498A BR9500498A (pt) 1994-02-11 1995-02-10 Processo para o isolamento de tântalo e nióbio

Country Status (4)

Country Link
JP (1) JPH07252552A (pt)
AU (1) AU700944B2 (pt)
BR (1) BR9500498A (pt)
DE (1) DE4404374C1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6348113B1 (en) 1998-11-25 2002-02-19 Cabot Corporation High purity tantalum, products containing the same, and methods of making the same
DE10335448B4 (de) * 2002-09-04 2016-07-21 H.C. Starck Gmbh Verfahren zur Gewinnung und Trennung von Tantal und Niob aus tantalarmen Rohstoffen
DE112007000440B4 (de) 2006-03-07 2021-01-07 Global Advanced Metals, Usa, Inc. Verfahren zum Erzeugen von verformten Metallartikeln
US20190046954A1 (en) * 2015-10-07 2019-02-14 Kyocera Corporation Adsorbent and compound recovery method using same
CN111057879A (zh) * 2020-01-02 2020-04-24 荆门德威格林美钨资源循环利用有限公司 一种硬质合金中分离出钽铌元素的工艺方法
CN111690827B (zh) * 2020-07-01 2022-07-15 江西拓泓新材料有限公司 从氟钽酸钾结晶母液中回收钽资源的方法
JP6996798B1 (ja) * 2021-05-31 2022-01-17 株式会社アサカ理研 酸化タンタルの製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962372A (en) * 1958-01-17 1960-11-29 Union Carbide Corp Columbium and tantalum separation
US2950966A (en) * 1958-06-20 1960-08-30 Nat Distillers Chem Corp Recovery of tantalum values
US3117833A (en) * 1958-09-25 1964-01-14 Fansteel Metallurgical Corp Process of purifying and separating columbium and tantalum values from each other
DE4021207A1 (de) * 1990-07-03 1992-01-16 Starck Hermann C Fa Verfahren zur gewinnung und trennung von tantal und niob

Also Published As

Publication number Publication date
AU700944B2 (en) 1999-01-14
JPH07252552A (ja) 1995-10-03
AU1162395A (en) 1995-08-24
DE4404374C1 (de) 1995-05-18

Similar Documents

Publication Publication Date Title
BR9509904A (pt) Processo para purificação e isolamento de 2-desóxi-2,2-difluor-nucleosideos
LV12018A (lv) 2-metil-tieno-benzodiazepina pagatavosanas process un ta kristaliskas formas
BR9508927A (pt) Processo para a preparação de compostos e composto
BR9505245A (pt) Processo para produção de óxido de alquileno
FI971268A7 (fi) Menetelmä 1,3-alkaanidiolien ja 3-hydroksialdehydien valmistamiseksi
BR9301180A (pt) Processo para a preparacao de isocianatos e emprego
BR9609533A (pt) Processo para preparação de 3-hidroxipirazóis n-substituídos
BR9607023A (pt) Método para produção de aminoetilenolamina e/ou hidroxietil piperazina
FI955708L (fi) Menetelmä 2-fenyyli-3-aminopiperidiinin valmistamiseksi ja erottamiseksi
NO953598L (no) Fremgangsmåte for fremstilling av akryl-piperidin-karbinoler
BR9607413A (pt) Processo para produçao de pentafluoretano e tetrafluorcloroetano
BR9100907A (pt) Aplicacao de compostos e processo para a preparacao de poliuretanas
BR9408530A (pt) Intermediário e processo para preparação
BR9500498A (pt) Processo para o isolamento de tântalo e nióbio
BR9707173A (pt) Processo para a preparação de um composto e composto
ITRM930502A0 (it) Procedimento per la produzione di r amminocarnitina e s amminocarnitina.
FI971267L (fi) Menetelmä 1,3-alkaanidiolien ja 3-hydroksialdehydien valmistamiseksi
ITMI931828A0 (it) Processo per la preparazione di pentafluoroetano
PT998470E (pt) Processo de preparacao de derivados aminados de alquiloxifuranona compostos provenientes desse processo e utilizacao desses compostos
BR9804794A (pt) Processo para prepara-Æo de 1-alquil-4-(2-cloro-3-alcÄxi-4-alquil-sulfonil-benzoil) -5-hidrÄxi-pirazol e compostos relacioonados
BR9104420A (pt) Processo para fabricacao de 2-aminoditiotiazois e de 2-aminotritiotiazois
PT101604A (pt) Processo e instalacao para a fabricacao de rolhas de cortica
BR9602731A (pt) Processo para a preparação de hidroxibiarilfosfinas e hidroxibiarilfosfina assim obtidas
BR9300016A (pt) Processo para o siolamento de isomeros de poliisocianato
BR9505216A (pt) Processo para a preparação de 3-hidróxi-n-benzimidazolon-5-il- 2-naftamida

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
HO Change of classification

Free format text: ALTERADA DE INT. CL. 6 C22B 3/06, C01B 33/00

FG9A Patent or certificate of addition granted
B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2256 DE 01/04/2014 POR TER SIDO INDEVIDA.

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

Free format text: REFERENTE AS 18A, 19A E 20A ANUIDADES.

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 2605 DE 08-12-2020 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.