Source

Extraction and separation of tantalum and niobium from Mozambican tantalite by solvent extraction in the ammonium bifluoride-octanol system

Kabangu Mpinga, John (2012). Extraction and separation of tantalum and niobium from Mozambican tantalite by solvent extraction in the ammonium bifluoride-octanol system. University of Pretoria. https://repository.up.ac.za/items/669d8111-36e4-4e18-b579-fdabbd80f7b2 Retrieved 2026-09-18.

Authority tier: Peer-reviewed
Type: thesis
URL: https://repository.up.ac.za/items/669d8111-36e4-4e18-b579-fdabbd80f7b2
Retrieved by Lithoen: 2026-09-18
Last re-checked: 2026-09-18 (verified)

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The repository item page prints no license statement and no DOI, so rights are NOT established. Openly downloadable is not openly redistributable and the difference is not guessed at here.
No supervisor and no department are stated on the repository item page.
The work states no date on which any analysis was performed, and gives no sample, batch or lot identifier to the ore analysed. Both are absent from a document read in full, not merely unlocated.