BR0106058A - Niobium powder production process by reduction of alkali or alkaline earth metal niobates and niobium powder - Google Patents

Niobium powder production process by reduction of alkali or alkaline earth metal niobates and niobium powder

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Publication number
BR0106058A
BR0106058A BR0106058-9A BR0106058A BR0106058A BR 0106058 A BR0106058 A BR 0106058A BR 0106058 A BR0106058 A BR 0106058A BR 0106058 A BR0106058 A BR 0106058A
Authority
BR
Brazil
Prior art keywords
niobium powder
earth metal
alkaline earth
alkaline
alkali
Prior art date
Application number
BR0106058-9A
Other languages
Portuguese (pt)
Inventor
Joao Batista Ferreira Neto
Flavio Beneduce Neto
Solon Yasuhiko Tagusagawa
Antonio Telhado Pereira
Original Assignee
Cbmm Sa
Inst Pesquisas Tech
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, Inst Pesquisas Tech filed Critical Cbmm Sa
Priority to BR0106058-9A priority Critical patent/BR0106058A/en
Publication of BR0106058A publication Critical patent/BR0106058A/en

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Abstract

"PROCESSO DE PRODUçãO DE Pó DE NIóBIO POR REDUçãO DE NIOBATOS DE METAIS ALCALINOS OU ALCALINO TERROSOS E Pó DE NIóBIO". A presente invenção refere-se a um processo de produção de pó de nióbio de elevada pureza, elevada superfície específica e teores de oxigênio controlados, através de uma única etapa de redução de niobatos de metais alcalinos ou alcalino terrosos (Me~ x~NbO~ Y~, onde Me é o metal alcalino ou alcalino terroso, x = 0,5 a 3 e y = 2 a 4) com um metal de mesma natureza seguido de uma etapa de lixiviação ácida/lavagem para remoção dos óxidos de metais alcalinos ou alcalino terrosos (ou excesso de metal alcalino ou alcalino terroso empregado na redução) presentes no produto final. A invenção compreende ainda o pó de nióbio assim obtido."NIOBIO DUST PRODUCTION PROCESS BY REDUCING ALKALINE OR ALKALINE EARTH METAL NIOBATES AND NIOBIO DUST". The present invention relates to a process of producing high purity, high specific surface niobium powder and controlled oxygen contents by a single step of reducing alkaline or alkaline earth metal niobates (Mex-NbO2). Y ~, where Me is alkaline or alkaline earth metal, x = 0.5 to 3 and y = 2 to 4) with a metal of the same nature followed by an acid leaching / washing step for removal of alkali or alkali metal oxides earth (or excess alkaline or alkaline earth metal employed in the reduction) present in the final product. The invention further comprises the niobium powder thus obtained.

BR0106058-9A 2001-12-12 2001-12-12 Niobium powder production process by reduction of alkali or alkaline earth metal niobates and niobium powder BR0106058A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR0106058-9A BR0106058A (en) 2001-12-12 2001-12-12 Niobium powder production process by reduction of alkali or alkaline earth metal niobates and niobium powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR0106058-9A BR0106058A (en) 2001-12-12 2001-12-12 Niobium powder production process by reduction of alkali or alkaline earth metal niobates and niobium powder

Publications (1)

Publication Number Publication Date
BR0106058A true BR0106058A (en) 2003-08-26

Family

ID=27671839

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0106058-9A BR0106058A (en) 2001-12-12 2001-12-12 Niobium powder production process by reduction of alkali or alkaline earth metal niobates and niobium powder

Country Status (1)

Country Link
BR (1) BR0106058A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022036427A1 (en) 2020-08-17 2022-02-24 Fras-Le S.A. Preparation of niobium nanoparticles, use and method for obtaining same
EP4246233A1 (en) 2022-03-17 2023-09-20 Xerox Corporation Toner comprising charge control agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022036427A1 (en) 2020-08-17 2022-02-24 Fras-Le S.A. Preparation of niobium nanoparticles, use and method for obtaining same
EP4246233A1 (en) 2022-03-17 2023-09-20 Xerox Corporation Toner comprising charge control agent

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Legal Events

Date Code Title Description
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 12/12/2001, OBSERVADAS AS CONDICOES LEGAIS.

B25C Requirement related to requested transfer of rights

Owner name: COMPANHIA BRASILEIRA DE METALURGIA E MINERACAO (BR

Free format text: A FIM DE ATENDER O SOLICITADO NA PETICAO DE TRANSFERENCIA NO 018070027092/SP DE 03/05/2007, QUEIRAAPRESENTAR DOCUMENTO QUE COMPROVE QUE OS SIGNATARIOS DO DOCUMENTO DE CESSAO, POR PARTE DA CEDENTE, TEM PODERES PARA PRATICAR TAL ATO.

B25A Requested transfer of rights approved

Owner name: IPT - INSTITUTO DE PESQUISAS TECNOLOGICAS DO ESTAD

Free format text: TRANSFERIDO DE: COMPANHIA BRASILEIRA DE METALURGIA E MINERACAO

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 12.12.2021