Browsing by Subject "mineralogy"
Now showing items 1-3 of 3
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Behaviour of selected major elements during fixed-bed gasification of South African bituminous coal
(Elsevier, 2012)The Sasol–Lurgi Fixed Bed Dry Bottom gasifier (S–L FBDB) treats a feed coal containing c.a. 30% ash forming minerals, which means that there are complex mineralogical processes occurring simultaneously with each other, ... -
Leaching kinetics of carbonatite and silicate based chalcopyrite minerals
(North-West University (South Africa), 2020)Copper (Cu) is a widely used metal with high thermal and electrical conductivities, which is primarily extracted from the low-grade Cu sulphide mineral, chalcopyrite. Hydrothermal extraction is the preferred process for ... -
Mineralogical behaviour of North Dakota lignite in an oxygen/steam blown moving bed reactor
(Elsevier, 2013)In this study, lignite fromNorth Dakota (USA)was thermally treated in a commercial-scale oxygen/steamblown moving bed reactor at the Dakota Gasification Conpany (DGC) in order to identify mineralogical changes that occur ...