Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES238541A1publicationCriticalpatent/ES238541A1/es
C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G33/00—Compounds of niobium
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
C01P2006/00—Physical properties of inorganic compounds
C01P2006/80—Compositional purity
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Inorganic Chemistry
(AREA)
Inorganic Compounds Of Heavy Metals
(AREA)
Manufacture And Refinement Of Metals
(AREA)
Abstract
Procedimiento para el enriquecimiento y la separación de los elementos niobio y tántalo de sus mezclas pentahalogenuricas, caracterizado por el hecho de hacer reaccionar entre sí mezclas de pentahalogenuros, especialmente mezclas de pentacloruro de niobio y pentacloruro de tántalo, y por separar de una fracción enriquecida en niobio las sales dobles ricas en tántalo que se han formado.
ES0238541A1956-11-131957-11-12PROCEDIMIENTO PARA EL ENRIQUECIMIENTO O LA SEPARACIoN DE LOS ELEMENTOS NIOBIO Y TáNTALO
ExpiredES238541A1
(es)