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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Publication date
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Priority to FR914814ApriorityCriticalpatent/FR1339148A/fr
Application grantedgrantedCritical
Publication of FR1339148ApublicationCriticalpatent/FR1339148A/fr
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
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Engineering & Computer Science
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Chemical & Material Sciences
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Manufacturing & Machinery
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Materials Engineering
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Mechanical Engineering
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Metallurgy
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Organic Chemistry
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FR914814A1962-11-081962-11-08Procédé pour la réduction de pentachlorure de tantale ou de niobium dans un courant d'hydrogène et de plasma
ExpiredFR1339148A
(fr)