http://natural-sciences.nwu.ac.za/crb/research-groups/chromium
Chromium
[accordion] Research Leader Prof Pieter van Zyl Pieter van Zyl completed his PhD in Chemistry in 2007 after which he was appointed as a senior lecturer and co-head of the Atmospheric Chemistry Research Group (ACRG) at the NWU. He was promoted to Full Professor…http://natural-sciences.nwu.ac.za/af/crb/steenkool-en-femtochemie
Steenkool en Femtochemie
Navorsingsfokus Navorsing en ontwikkeling fokus op die volgende: • Die begrip van die fundamentele samestelling, struktuur en reaktiewe eienskappe van Suid-Afrikaanse steenkool; • Die optimale ontwerp en werking van verbrandings- en vergassingsprosesse; • Vermindering van omgewingsvriendelike aspekte van…http://natural-sciences.nwu.ac.za/crb/coal-and-femtochemistry
Coal and Femtochemistry
Research Focus Research and development focus is on the following: • Understanding the fundamental composition, structure and reactive properties of South African coals, • The optimal design and operation of combustion and gasification processes, • Reduction of environmentally unfriendly aspects…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/groepleier-steenkool-en-femtochemie
Groepleier: Steenkool en Femtochemie
Prof Christien Strydom Oor Prof Strydom: Studeer Chemie aan P.U. Vir C.H.E (Potchefstroom) (1975 - 1977), BSc Honneurs (1978) en MSc (1980) PhD (Chemie): 1988 Universiteit van Pretoria Senior dosent, Medeprofessor, Volle Professor aan die Universiteit van Pretoria tot Desember 2006 Volle…http://natural-sciences.nwu.ac.za/crb/research-groups/christien-strydom
Group Leader: Coal- and Laser Chemistry Research Group
Prof Christien Strydom About Prof Strydom: Studied Chemistry at P.U. for C.H.E (Potchefstroom) (1975 – 1977), BSc Honours (1978) and MSc (1980) PhD (Chemistry): 1988 University of Pretoria Senior lecturer, Associate Professor, Full Professor at University of Pretoria until December 2006 Full…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/agtergrond-steenkool-en-laserchemie-navorsingsgroep
Agtergrond: Steenkool- en Laserchemie-navorsingsgroep
Navorsingsfokus Ons navorsing en ontwikkeling fokus op die volgende: Die verstaan die fundamentele samestelling, struktuur en reaktiewe eienskappe van Suid-Afrikaanse kole, Die optimale ontwerp en werking van verbrandings- en vergassingsprosesse, Vermindering van omgewingsvriendelike aspekte van…http://natural-sciences.nwu.ac.za/crb/research-groups/background/coal
Background: Coal- and Laser Chemistry Research Group
Research Focus Research and development focus on the following: • Understanding the fundamental composition, structure and reactive properties of South African coals, • The optimal design and operation of combustion and gasification processes, • Reduction of environmentally unfriendly aspects…http://natural-sciences.nwu.ac.za/af/chemical-resource-beneficiation-crb/navorsingstoerusting-steenkool-en-laserchemie-navorsingsgroep
Navorsingstoerusting: Steenkool- en Laserchemie Navorsingsgroep
Ons navorsingstoerusting sluit in: Nano- en femtosekondlasers GC-MS FTIR-Raman stelsel TMA en sterkte toets toerusting Hoë temperatuur TG / DTA XRD en XRF ICP BET Oppervlakte en porie groottehttp://natural-sciences.nwu.ac.za/crb/research-groups/coal/research-equipment
Research Equipment: Coal- and Laser Chemistry Research Group
Our Research Equipment Includes: Nano- and femtosecond lasers GC-MS FTIR-Raman system TMA and Strength testing equipment High temperature TG/DTA XRD and XRF ICP BET Surface area and pore sizehttp://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