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  3. Membrane Technology: Publications 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, 1998.  Crown ether impregnated membranes for selective cation transport.  South African Journal of Chemical Engineering, 10(1), 1-14.

•  J. Lotter, H.M. Krieg, K. Keizer & J.C. Breytenbach, 1999.  The influence of ?-cyclodextrin on the solubility of chlorthalidone and its enantiomers.  Drug Development and Industrial Pharmacy.  25(8), 879-884.

•  H.M. Krieg, J.C. Breytenbach & K. Keizer, 2000.  Chiral resolution by ?-cyclodextrin polymer impregnated ceramic membranes.  Journal of Membrane Science.  164 (1-2) 177-185.

•  H.M. Krieg, J. Lotter, K. Keizer & J.C. Breytenbach, 2000.  Enrichment of chlorthalidone enantiomers by an aqueous bulk liquid membrane containing ?-cyclodextrin.  Journal of Membrane Science, 167 (1) 33-45.

•  H.M. Krieg, J.C. Breytenbach & K. Keizer, 2000. Resolution of 1,2-epoxyoctane by enantioselective catalytic hydrolysis in a membrane bioreactor.  Journal of Membrane Science, 180 (1), 69-80.

•  H.M. Krieg, A.L. Botes, M.S. Smit, J.C. Breytenbach & K. Keizer, 2001.  The enantioselective hydrolysis of racemic 1,2-epoxyoctane in a batch and a continuous process.  Journal of Molecular Catalysis B, 13 (1-3) 37-47.

•  R. Schmuhl, H.M. Krieg & K. Keizer, 2001.  Adsorption of Cu(II) and Cr(VI) ions by chitosan: Kinetics and equilibrium studies, Water SA, 27 (1) 1-7.

•  T.J.K. Visser, S.J. Modise, H.M. Krieg & K. Keizer, 2001.  The removal of acid sulphate pollution by nanofiltration, Desalination, 140 (1) 79-86.

•  G.C. Steenkamp, H.P. Neomagus, H.M. Krieg & K. Keizer, 2001.  Centrifugal casting of ceramic membrane tubes and the coating with chitosan, Separation and Purification Technology, 25 (1-3) 407-413.

•  G.C. Steenkamp, K. Keizer, H.P. Neomagus & H.M. Krieg, 2002.  Copper(II)removal from polluted water with alumina/chitosan composite membranes, Journal of Membrane Science, 197, 147-156.

•  C.A. Yeates, M.S. van Dyk, A.L. Botes, J.C. Breytenbach & H.M. Krieg, 2003.  Biocatalytic resolution of nitro substituted styrene oxides by Rhodotorula glutinis and Rhodosporidium toruloides, Biotechnology Letters, 25(9), 675-680.

•  J. Maritz, H.M. Krieg, A.L. Botes, C.A. Yeates & J.C. Breytenbach, 2003.  Calcium alginate entrapment of yeast cells for the kinetic resolution of 1,2-epoxyoctane, Biotechnology Letters, 25(20), 1775-1781.

•  J. Zah, H.M. Krieg, J.C. Jansen, K. Keizer, J. Scholtz & H. Mulder, 2003.  The development of zeolite coated ceramic membranes.  SAiCHE peer reviewed conference proceedings.

•  D. Nunes, H. Neomagus, H.M. Krieg & R. Everson, 2003.  The selective removal of water vapour from organic vapours using zeolite membranes.  SAiCHE peer reviewed conference proceedings.

•  H.M. Krieg, S.J. Modise, K. Keizer & H.W.J.P. Neomagus, 2004.  Rejection of sulphate ions with commercial nanofiltration membranes in single and binary salt mixtures, Desalination, 171 (2), 205-215.

•  I. le Roux, H.M. Krieg, C.A. Yeates & J.C. Breytenbach, 2005.  Use of chitosan as an antifouling agent in a continuous bioreactor.  Journal of Membrane Science, 248, 127-136.

•  J. Zah, H.M. Krieg & J.C. Breytenbach, 2006.  Layer development and growth history of polycrystalline zeolite A membranes synthesised from a clear solution.  Microporous & Mesoporous Materials, 93, 141-150.

•  J. Zah, H.M. Krieg & J.C. Breytenbach, 2006.  Pervaporation and related properties of time-dependent growth layers of zeolite NaA on structured ceramic supports.  Journal of Membrane Science, 284, 276-290.

•  V.A. Patterson, H.M. Krieg, R.J. Kriek & H. Bisset, 2006.  Direct synthesis of a titania membrane on a centrifugally casted tubular ceramic support.  Journal of Membrane Science, 285, 1-3.

•  J. Zah, H.M. Krieg & J.C. Breytenbach, 2007.  Single gas permeation through thin layered zeolite NaA membranes: improved permeance through an unconventional, semicrystalline layer.  Journal of Membrane Science, 287, 300-310.

•  C.A. Yeates, M.S. van Dyk, A.L. Botes, J.C. Breytenbach & H.M. Krieg, 2007.  Optimisation of the biocatalytic resolution of styrene oxide by Rhodotorula glutinis.  Enzyme & Microbial Technology, 40, 221-227.

•  C.A. Yeates, H.M. Krieg, & J.C. Breytenbach, 2007.  Hydroxypropyl-?-cyclodextrin induced complexation for the biocatalytic resolution of a poorly soluble epoxide.  Enzyme & Microbial Technology, 40, 228-235.

•  A. van Niekerk, J. Zah, J.C. Breytenbach & H.M. Krieg, 2007.  Direct crystallisation of a hydroxy sodalite membrane without seeding using a conventional oven.  Journal of Membrane Science, 300, 156-164.

•  H. Bissett, J. Zah & H.M. Krieg, 2008.  Manufacture and optimization of tubular ceramic membrane supports.  Powder Technology, 180, 57-66.

•  Branken, D.J., Lachmann, G., Krieg, H.M. & Bruinsma, O.S.L., 2010.  Influence of KF and HF on the Selectivity of Zr and Hf Separation by Fractional Crystallization of K2Zr(Hf)F6. Ind. Eng. Chem. Res., 49, 797 - 808.

•  J.P. van Ravenswaay, F. van Niekerk, R.J. Kriek, E. Blom, H.M. Krieg, W.M.K. van Niekerk, F. van der Merwe, H.C.M. Vosloo, 2010.  South Africa's nuclear hydrogen production development programme, Nuclear Energy, 2010, 180-189 (Nuclear Science Nuclear Production of Hydrogen, OECD-NEA Fourth Information Exchange Meeting, Oakbrook, Illinois, USA , 14-16 April 2009; ISBN 9789264087156)

•  Branken, D.J., Lachmann, G., Krieg, H.M. & Bruinsma, O.S.L., 2011.  A Density-Functional Theory Approach to the Separation of K2ZrF6 and K2HfF6 via Fractional Crystallization. Int. J. Quantum Chem., 111, 682 - 693.

 

 

Patents:

•  H.M. Krieg, J.C. Breytenbach, V.M. Linkov & S. Kuhl, 1998.  Ceramic based membranes, the preparation and use thereof.  South African Patent No. 98/7716.

•  J.C. Breytenbach, J. Lotter & H.M. Krieg, 1998.  Liquid membranes for the resolution of enantiomers, South African Patent No. 98/8405

•  J.C. Breytenbach, J. Lotter & H.M. Krieg, 1999.  Liquid membrane resolution of racemic compounds into their enantiomers, South African Patent No. 99/6510.

•  J. Maritz, C.A. Yeates, J.C. Breytenbach & H.M. Krieg, 2003.  Purification of chemical compounds, South African Patent No. 2003/3592.

•  A. van Niekerk, J. Zah, H.M. Krieg & J.C. Breytenbach, 2006.  Hydroxysodalite based microporous filter, South African Patent No. 2006/06892.

•  J.T. Nel, I.J. van der Walt, A.T. Grunenberg, O.S.L. Bruinsma, M. le Roux, H.M. Krieg en S. Marx.  Recovery of a gaseous component from a mixture of gaseous components.