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U.S. Department of Energy
Office of Scientific and Technical Information

PREPARATION OF NIOBIUM OXIDE (in French)

Patent ·
OSTI ID:4029131

Nb is separated from metals of the 3rd, 4th, 5th, and 8th groups, such as Fe, Ta, Mn, Ti, Si, Cu, Al, and Sn, by passing a solution of metal chlorides or fluorides through an anion exchange resin, which retains only Nb and part of the Fe. Fe and Nb are separated by selective elution with NaCl, which also regenerates the ion exchanger, a quaternary ammonium salt. Niobium hydroxids is precipitated with ammonia, washed, dried, and calcined to high-purity Nb/sub 2/O/ sub 5/. (EURATOM)

Research Organization:
Originating Research Org. not identified
NSA Number:
NSA-15-015990
OSTI ID:
4029131
Report Number(s):
BE 580485
Country of Publication:
Belgium
Language:
French