Browsing Theses and Dissertations (Chemical Engineering) by Supervisor "Wagener, J.B."

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Niobium and tantalum beneficiation using gas-phase fluorination

Pienaar, A.D. (University of Pretoria, 2014)

The processing of minerals containing tantalum and niobium is a challenge that has most modern researchers focused on optimising the processes that have already reached scientific maturity. Ore digestion in aqueous mixtures ...
A thermogravimetric study of the reactions of molybdenum and tungsten disilicides with anhydrous hydrogen fluoride and fluorine

Gama, Jabulani Selby (University of Pretoria, 2012-07-16)

A study of the reactions between molybdenum and tungsten disilicide (MoSi2 and WSi2) with anhydrous hydrogen fluoride and fluorine was carried out to investigate the chemical behaviour of the materials. These two compounds ...

Now showing items 1-2 of 2

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