Search Results - "Sibanda, V."

Enhancing the flotation recovery of copper minerals in smelter slags from Namibia prior to disposal by Sibanda, V., Sipunga, E., Danha, G., Mamvura, T.A.

“…Namibia Custom Smelters (NCS) process a range of copper concentrates in their three furnaces, namely; top submerged lance, copper converter and reverberatory…”
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The effect of chemical reagents on flotation performance of a pentlandite ore: An attainable region approach by Sibanda, V., Khan, R., Danha, G.

“…Chemical reagents are used in flotation processes to improve the recovery of minerals as well as facilitate the rejection of gangue material. In this article,…”
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Extraction of alumina from coal fly ash using an acid leach-sinter-acid leach technique by Shemi, A., Ndlovu, S., Sibanda, V., van Dyk, L.D.

“…In this paper, a two-step acid leach process for the extraction of aluminium from coal fly ash has been conducted using an acid leach-sinter-acid leach…”
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PGM extraction from oxidized ores using flotation and leaching by Sefako, R., Sibanda, V., Sekgarametso, K.

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Potential Processing Routes for Recovery of Platinum Group Metals from Southern African Oxidized PGM Ores: A Review by Sefako, R., Sekgarametso, K., Sibanda, V.

“…The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which…”
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Towards the Utilization of Fly Ash as a Feedstock for Smelter Grade Alumina Production: A Review of the Developments by Sibanda, V., Ndlovu, S., Dombo, G., Shemi, A., Rampou, M.

“…The major commercial technology for the production of smelter grade alumina has conventionally been the Bayer process which converts bauxite ore, an aluminum…”
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Predicting particle segregation in cross-flow gas filtration by Sibanda, V., Greenwood, R.W., Seville, J.P.K., Ding, Y., Iyuke, S.

“…Cross-flow filtration is has found considerable application in solid/liquid separation but is little-used in filtration of gases. In this filtration mode, a…”
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Comparing the extent of the dissolution of copper-cobalt ores from the DRC Region by Stuurman, S, Ndlovu, S, Sibanda, V

“…Inorganic acids such as sulphuric acid have found use together with certain reducing agents in leaching of copper-cobalt oxide ores. These reagents are not…”
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Characterization of mechanically alloyed f.c.c. Ti–Mg-based powders by Machio, C., Nyabadza, D., Sibanda, V., Chikwanda, H.K.

“…Face centred cubic Ti–10 and 20Mg and Ti–6Al–4Mg (wt.%) alloy powders have been produced by high energy ball milling, under argon, of elemental powder mixtures…”
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Process synthesis and optimization for the production of carbon nanostructures by Iyuke, S E, Mamvura, T A, Liu, K, Sibanda, V, Meyyappan, M, Varadan, V K

“…A swirled fluidized bed chemical vapour deposition (SFCVD) reactor has been manufactured and optimized to produce carbon nanostructures on a continuous basis…”
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Particle separation from gases using cross-flow filtration by Sibanda, V., Greenwood, R.W., Seville, J.P.K.

“…Most filters used in solid/gas separation are applied in the “dead-end” mode, where the aerosol particles arrive at the filter on trajectories that are…”
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Alternative techniques for extracting alumina from coal fly ash by Shemi, A., Mpana, R.N., Ndlovu, S., van Dyk, L.D., Sibanda, V., Seepe, L.

“…► Acetylacetone can extract up to 17.9% aluminium and sulphuric acid up to 23.5%. ► Aluminium extractions represent 64% and 85% from CFA amorphous phase…”
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Extraction of aluminium from coal fly ash: Identification and optimization of influential factors using statistical design of experiments by Shemi, A., Ndlovu, S., Sibanda, V., van Dyk, L.D.

“…In this study, a statistical Design of Experiments (DOE) method combined with response surface methodology (RSM) was used for identification and optimization…”
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Electrochemical and physical characterisation of lead-based anodes in comparison to Ti–(70%) IrO2/(30%) Ta2O5 dimensionally stable anodes for use in copper electrowinning by Msindo, Z. S., Sibanda, V., Potgieter, J. H.

“…The suitability of various dimensionally stable anodes (DSAs ® ) was investigated in comparison to the conventional lead alloy anodes in the electrowinning of…”
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The determination of excess thermodynamic functions of binary liquid mixtures by Sibanda, V S

“…The work involved the determination of excess thermodynamic functions of binary liquid mixtures by experimental and theoretical means. Experimentally, excess…”
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