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Die ontwikkeling van apparaat en analitiese tegnieke vir gekoppelde X-straaldiffraksie-ontledings van flodders

M.Sc. (Geology) / This study involves the quantitative analysis of fluorspar-containing slurries by two X-ray diffraction methods, whereby these two methods of on-stream analysis are compared. The first method involves a single counter with a diffracted beam monochromator, and the second method involves a fixed geometry with an incident beam monochromator. The second method is a cheaper and more robust apparatus, which can withstand the harsh environment of the flotation plants. A new algorithm was developed for a more accurate calibration method. Programmes for calibration, recalibration and measuring of unknown samples were developed. The measuring apparatus was interfaced with a microcomputer for computerised operation of the system. Results from both methods were comparable, with more accurate results obtained for the feed and tailings than for the concentrate samples. The single detector apparatus can thus be replaced by the fixed geometry model, which is less expensive and more robust.

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uj/uj:4584
Date02 April 2014
CreatorsClark, Wilma
Source SetsSouth African National ETD Portal
Detected LanguageEnglish
TypeThesis
RightsUniversity of Johannesburg

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