PRODUCTION OF NIOBIUM AND TANTALUM COMPOUNDS
Journal Article
·
· Nuclear Eng.
OSTI ID:4248214
Niobium sources (ores and crude commercial products) usually contain tantalum and chemical extraction processes, therefore, yield niobium with an appreciable tantalum content. Extracting niobium and tantalum by heating with potassium hydroxide and then separating potassium niobate and potassium tantalate from insoluble matter results in considerably less niobium and tantalum than are present in the source material. It has been found that the losses occur through the presence of iron in the source and these losses can be reduced if the formation of ferric hydroxie is avoided by performing the heating step under reducing conditions (in the presence of metric iron) and if subsequently precautions are taken to avoid such formation while the hot alkaline potassium niobate and tantalate solution is in contact with the insoluble matter.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-019946
- OSTI ID:
- 4248214
- Journal Information:
- Nuclear Eng., Journal Name: Nuclear Eng. Vol. Vol: 4
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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