Imperial College London
Portrait Picture

Professor Jan Cilliers

Faculty of Engineering, Department of Earth Science & Engineering

Chair in Mineral Processing
 
 
 
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Contact

 

+44 (0)20 7594 7360j.j.cilliers

 
 
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Location

 

RSM 1.46BRoyal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Fagan-Endres:2017:10.1016/j.mineng.2017.01.010,
author = {Fagan-Endres, MA and Cilliers, JJ and Sederman, AJ and Harrison, STL},
doi = {10.1016/j.mineng.2017.01.010},
journal = {Minerals Engineering},
pages = {63--68},
title = {Spatial variations in leaching of a low-grade, low-porosity chalcopyrite ore identified using X-ray mu CT},
url = {http://dx.doi.org/10.1016/j.mineng.2017.01.010},
volume = {105},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This study presents an investigation, using 3D X-ray micro computed tomography (μCT), into the effect of sulfide mineral position within an ore particle on leaching efficiency. Three sections of an unsaturated mini-leaching column that had been packed with agglomerated low-grade, low-porosity chalcopyrite ore and leached with an acidified ferric iron solution were imaged at different stages of a 102 day experiment. Image analysis was used to quantify changes in the mineral content and the influence on this of the mineral distance from the ore particle surface, local voidage and radial position within the column. The main factor affecting the mineral recovery was identified to be proximity of the mineral to the ore particle surface, with recovery decreasing with increasing distance from the ore surface. A maximum leaching penetration was observed to exist at 2 mm from the surface, beyond which no recovery was achieved. Higher recoveries at the column wall indicated that preferential flow in this higher voidage had an additional, albeit smaller, impact on leaching efficiency.
AU  - Fagan-Endres,MA
AU  - Cilliers,JJ
AU  - Sederman,AJ
AU  - Harrison,STL
DO  - 10.1016/j.mineng.2017.01.010
EP  - 68
PY  - 2017///
SN  - 0892-6875
SP  - 63
TI  - Spatial variations in leaching of a low-grade, low-porosity chalcopyrite ore identified using X-ray mu CT
T2  - Minerals Engineering
UR  - http://dx.doi.org/10.1016/j.mineng.2017.01.010
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000397374600009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/48186
VL  - 105
ER  -
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