http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/publikasies-kool-en-laserchemie-navorsingsgroep
Publikasies: Kool- en Laserchemie Navorsingsgroep
• P.J. Mohlala and CA Strydom, Lewis acid-base properties of a low carbon aluminium killed steel substrate, S. Afr. J. Chem., 60 (2007) 29 – 35. • NR Nengovhela, CA Strydom, JP Maree, S Oosthuizen and DJ Theron, Recovery of sulphur and calcium carbonate from waste gypsum, Water SA, 33 (2007) 741-748.…http://natural-sciences.nwu.ac.za/crb/research-groups/coal/publications
Publications: Coal- and Laser Chemistry Research Group
• P.J. Mohlala and CA Strydom, Lewis acid-base properties of a low carbon aluminium killed steel substrate, S. Afr. J. Chem., 60 (2007) 29 – 35. • NR Nengovhela, CA Strydom, JP Maree, S Oosthuizen and DJ Theron, Recovery of sulphur and calcium carbonate from waste gypsum, Water SA, 33 (2007) 741-748.…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/groepleier-membraantegnologie
Groepleier: Membraantegnologie
Prof Henning Krieg Henning Krieg het sy B.Sc. En B.Sc. Hons in Suid-Afrika voordat hy op 'n Fulbright-beurs na die VSA in 1994 gereis het waar hy sy M.S. in Chemie aan Rutgers, die Staatsuniversiteit van New Jersey voltooi het. Hy het teruggekeer na Suid-Afrika waar hy sy Ph.D.-graad voltooi het in 2000 aan die Noordwes-…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/group-leader
Group Leader: Membrane Technology
Prof Henning Krieg Henning Krieg completed his B.Sc. and B.Sc. Hons in South Africa before travelling on a Fulbright scholarship to the US where he completed his M.S. in Chemistry at Rutgers, the State University of New Jersey in 1994. He returned to South Africa where he completed his Ph.D. in 2000 at the North-West…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/agtergrond-membraantegnologie-hulpbronveredeling
Agtergrond: Membraantegnologie - Hulpbronveredeling
Suid-Afrika het talle reserwes van verskeie natuurlike hulpbronne. Alhoewel sommige materiale maklik uit hierdie hulpbronne gesuiwer kan word, is ander skeidings beswaarlik moeilik. Byvoorbeeld, Zircon, die belangrikste bron vir Zr wêreldwyd, bevat altyd 'n paar persent van Hf. Die chemiese en fisiese…http://natural-sciences.nwu.ac.za/crb/resource-benification
Background: Membrane Technology - Resource Benification
South Africa has significant reserves of various naturally occurring resources. While some materials can be easily purified from these resources other separations are notoriously difficult. For example, Zircon, the most important source for Zr worldwide, always contains a few percent of Hf. The…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/background/resource-benification
Background: Membrane Technology - Resource Benification
South Africa has significant reserves of various naturally occurring resources. While some materials can be easily purified from these resources other separations are notoriously difficult. For example, Zircon, the most important source for Zr worldwide, always contains a few percent of Hf. The chemical and…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/background/h2-production
H2 Production
In our group membrane based elctrolyzers are developed for the production of H2 using novel processes like the hybrid sulphur (HyS) process where the hydrogen is produced by the oxidation of SO2 in the presence of water forming H2SO4. Both new and existing membranes are screened for their suitability for this process in terms of…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/background/process-intensification
Process Intensification
Based on past experience on in-house manufactured zeolite coated ceramic membranes, current research is continuing on the use of zeolites and zeolitic membranes combining their catalytic properties as well as their ability to act as molecular sieves. /sites/natural-sciences.nwu.ac.za/files/files/CRB/imagesSintering…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/background/gas-separation
Gas Separation
While gas permeation studies form an intrinsic characterisation tool both for the inorganic as well as organic membranes for various applications, there are ongoing projects focussing specifically on the resolution of various perfluorinated compounds. These projects focus mainly on finding membrane based separation processes to replace…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/background
Background: Membrane Technology
Key Research Areas Research Focus The aim of our research group is to find novel, cost effective and environmentally friendly membrane based separation solutions for industrial as well as rural applications with a specific emphasis on South African relevance. There are two cross-linked key areas of interest within our research…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/membraantegnologie-publikasies-en-patente
Membraantegnologie: Publikasies en Patente
Publikasies: • P.G. Randall, H.M. Krieg & A.E.J. McGill, 1992. Calibration comparison between South African and Federal Grain Inspections services and European calibrations. South African Journal of Food Science and Nutrition, 4(2), 33-35. • H.M. Krieg, V.M. Linkov & J.C. Breytenbach,…http://natural-sciences.nwu.ac.za/crb/research-groups/membrane-technology/publication-and-patents
Membrane Technology: Publications and Patents
Publications: • P.G. Randall, H.M. Krieg & A.E.J. McGill, 1992. Calibration comparison between South African and Federal Grain Inspections services and European calibrations. South African Journal of Food Science and Nutrition, 4(2), 33-35. • H.M. Krieg, V.M. Linkov & J.C. Breytenbach,…http://natural-sciences.nwu.ac.za/af/crb/navorsingsgroepe/platinumgroepmetale
Platinumgroepmetale
Navorsingsfokus 'n Groep wat op sekere aspekte van die chemie van die platinumgroepmetale (PGM's) fokus, is op die Potchefstroomkampus van die Noordwes-Universiteit (NWU), wat in die Noordwes-provinsie van Suid-Afrika geleë is, ook plaaslik bekend as die Platinum-provinsie, aangesien die meerderheid van die wêreld se…http://natural-sciences.nwu.ac.za/crb/research-groups/eee
Electrochemistry for Energy & Environment
Research Focus Our current research focus includes investigating (i) vapour deposited thin metal films, nanoparticle metal oxide materials, and perovskite type materials for their electrocatalytic activity towards the oxygen evolution reaction (OER) in alkaline medium, (ii) membraneless alkaline water electrolysis, and (iii) the…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/groepleier-platinumgroepmetale
Groepleier: Platinumgroepmetale
Prof R.J. (Cobus) Kriek Prof Kriek het in 1994 sy MSc in Chemie getitel 'Skeiding van Pt (IV), Pd (II) en Rh (III) deur middel van Differensiële Fotokatalitiese Reduksie', behaal sy PhD in Chemie getitel 'Skeiding van Platinumgroepmetale: Photocatalytic Reduction and Complexation Equilibria van Pt (IV), Pd (…http://natural-sciences.nwu.ac.za/crb/research-groups/eee/group-leader
Group Leader: Electrochemistry for Energy & Environment
Prof R.J. (Cobus) Kriek Prof Kriek obtained his MSc in Chemistry on the ‘Separation of Pt(IV), Pd(II) and Rh(III) by means of Differential Photocatalytic Reduction’ in 1994, and his PhD in Chemistry on the ‘Separation of Platinum Group Metals: Photocatalytic Reduction and Complexation Equilibria of Pt(IV), Pd(II)…http://natural-sciences.nwu.ac.za/crb/research-groups/eee/background