PUBLICATIONS WITH NUMBERS FOR RATING DOCUMENT
I’ve left out Ntuli and Lewis, (in press)as I think it will have a 2009 publication date
[1]
McGeorge, B., Gaylard, P. and Lewis, A.E., 2008. Mechanism of rhodium(III) coprecipitation with copper sulfide (at low Rh concentrations) incorporating a new
cationic substitution reaction path, Hydrometallurgy, (in press)
[2]
Hove, M., van Hille, R., and Lewis, A.E., 2008. Mechanisms of formation of iron
precipitates from high ferrous iron concentrations and high pH, Chemical
Engineering Science, 63, 6, 1626-1635.
[3]
Karbanee, N., van Hille, R., and Lewis, A.E., 2008. Controlled nickel sulphide
precipitation using gaseous hydrogen sulphide, Industrial and Engineering
Chemistry Research, No 5, Volume 47, 1596-1602.
[4]
Hove, M., van Hille, R.P. and Lewis, A.E., 2007. Characterisation of iron solids
formed during the oxidation precipitation of ferrous sulphate solutions, AIChEJ,
Volume 53, Issue 10, 2569-2577.
[5]
Chiang, Y.L., Nathoo, J. and Lewis, A.E., 2007. Investigating the control of
manganese sulphide precipitation, Journal of the South African Institute of Mining and
Metallurgy, Vol 107, April 2007.
[6]
Ntuli, F. and Lewis, A. E., 2007. The influence of iron on the precipitation
behaviour of nickel powder, Chemical Engineering Science, 62, (14) 3756-3766
[7]
Lewis, A.E., 2006. Fines formation (and prevention) in seeded precipitation
processes, Kona, 24, 2006 (Invited contribution).
[8]
Ntuli, F. and Lewis, A. E., 2006. The effect of a morphology modifier on the
precipitation behaviour of nickel powder, Chemical Engineering Science, 61 (17)
5827-5833
[9]
Zhang, Y. and Lewis, A.E., 2006. Effect of crystallisation on the reaction kinetics of
nickel reduction by hydrogen, Chemical Engineering Science, 61 (12) 4120-4125.
[10] Lewis, A.E. and van Hille, R.P., 2006. An exploration into the sulphide
precipitation method and its effect on metal removal, Hydrometallurgy, 81, (3-4),
197 - 204
[11] Ochieng, A. and Lewis, A.E., 2006. CFD simulation of nickel solids off-bottom
suspension and cloud height, Hydrometallurgy, 82, 1-12.
[12] Taty-Costodes, V.C. and Lewis, A. E., 2006. Reactive crystallisation of nickel
hydroxy-carbonate in a fluidised bed reactor: 1. Fines production and column
design, Chemical Engineering Science, 61 (5) March 2006, 1377 – 1385
[13] Lewis, A.E. and Swartbooi, A., 2006. Factors affecting metal removal in mixed
sulphide precipitation, Chemical Engineering & Technology, 29 (2) February 2006,
277-280
1
[14] Ochieng, A. and Lewis, A.E., 2006. Nickel solids concentration distribution in a
stirred tank, Minerals Engineering, 19 (2) February 2006, 180–189
[15] Taty-Costodes, V.C., Mausse, C.F., Molala, K., and Lewis, A.E., 2006. A simple
approach for determining particle size enlargement mechanisms in nickel reduction,
International Journal of Mineral Processing, 78 (2) January 2006, 93-100
[16] Hounslow, M.J.H., Lewis, A.E., Sanders, S.J. and Bondy, R., 2005. Coupling
Population, Mass and Energy Balances: I: Development of a model for a wellmixed compartment, AIChE J, 51 (11) 2942-2955
[17] Lacour, S., van Hille, R., Petersen, K. and Lewis, A.E., 2005. Comparison of
simulators for process and aqueous chemistry modelling, AIChEJ, 51, 8, 2358 –
2368
[18] van Hille, R.P., Petersen, K. and Lewis, A.E., 2005. Copper sulphide precipitation
in a fluidised bed reactor, Chemical Engineering Science, 60, 2571-2578
[19] Gärtner, R.S., Himawan, C., Lewis, A.E., Pillay, V., Seckler, M.M. and Witkamp,
G.J. 2005. The System MgSO4-H2O at Eutectic Conditions: Thermodynamic
Solubility Products of MgSO412H2O and MgSO47H2O, Journal of Chemical and
Engineering Data, 50(2) pp 551 – 555.
[20] Seewoo, S., van Hille, R. and Lewis, A.E., 2004. Aspects of gypsum precipitation in
scaling waters, Hydrometallurgy, 75, Nov, 135-146
[21] Roberts, M. and Lewis, A.E, 2003. Three phase mixing studies for nickel
precipitation, Minerals Engineering, 16, 9, September 2003, p 881-883
[22] Lewis, A.E. and Roberts, M., 2003. Using fractal structure and flow properties to
describe morphology of nickel crystals, JOM – Journal of the Minerals, Metals and
Materials Society, February 2003, Vol. 55, No. 2, p 59-61.
[23] Guillard, D. and Lewis, A.E., 2002. Optimisation of Nickel Hydroxy-carbonate
Precipitation Using a Laboratory Pellet Reactor, Industrial and Engineering Chemistry
Research, No 13, Vol 41, 3110 – 3114.
[24] Knobel, A.K and Lewis, A.E., 2001. A mathematical model of a high sulphate
wastewater anaerobic treatment system, Water Research, 36, 257-265.
[25] Centurier-Harris, J.P., Butler, B. and Lewis, A.E., 2001. Improving Platinum
Precipitation Processes, Minerals Engineering, Vol 14, No. 8, 905 – 909
[26] Case, J., Gunstone, R. and Lewis, A.E., 2001. Students metacognitive development
in an innovative second year engineering course, Research in Science Education, 31, 3,
331-355
[27] Lewis, A.E. and Beautement, C., 2001. Prioritising objectives for waste
reprocessing: A case study in secondary lead refining, Waste Management, 22, 677-685
[28] Guillard, D. and Lewis, A.E., 2001. Nickel Carbonate precipitation in a fluidised
bed reactor, Industrial and Engineering Chemistry Research, No 23, Vol 40, 5564-5569
2
[29] Lewis, A.E. and Roberts, M., 2001. Quantifying morphology of nickel crystals,
Journal of the South African Institute of Mining and Metallurgy, No 8, Vol 101, 421-428
[30] Lewis, A.E. and Hugo, A., 2000. Characterisation and Batch Testing of a Secondary
Lead Slag, Journal of the South African Institute of Mining and Metallurgy, October 2000,
365 - 370.
[31] Cohen, B., Lewis, A.E, Petersen, J., von Blottnitz, H., Drews S.C. and Mahote, S.I.,
1999. The TCLP and Its Applicability for the Characterisation of Worst Case
Leaching of Wastes from Mining and Metallurgical Operations, Advances in
Environmental Research, 3 (2) (http://www.sfo.com/~aer/vol3no2.html)
[32] Ozinsky A.E. and Ekama G.A., 1995. Secondary Settling Tank Modelling and
Design: (1) Review of theoretical and practical aspects, Water S.A., 21 (4), October,
325-332.
[33] Ozinsky A.E. and Ekama G.A., 1995. Secondary Settling Tank Modelling and
Design: (2) Linking of sludge settleability measures, Water S.A., 21 (4), October,
333-350
[34] Billing, A.E. and Dold, P.L., 1988. Modelling techniques for biological reaction
systems: (1) Mathematical description and model representation, Water S.A., 14 (4),
October, 185-192.
[35] Billing A.E. and Dold, P.L., 1988. Modelling techniques for biological reaction
systems: (2) Modelling of the steady state case, Water S.A., 14 (4), October, 193206.
[36] Billing A.E. and Dold, P.L., 1988. Modelling techniques for biological reaction
systems: (3) Modelling of the dynamic case, Water S.A., 14 (4), October, 207-218.
Patent
[37] Lewis, A.E. and Nathoo, J.
Africa, 2008/07293
A Process. Provisional Patent Application South
Books, Chapters in books and Proceedings authored and/or edited
[38] Lewis, A.E, Nathoo, J. Reddy, T., and Randall, D. 2007. Novel Technology for
Recovery of Water and Solid Salts from Hypersaline Brines: Eutectic Freeze
Crystallization, Research Project NO. K5/1727, Water Research Commission,
Private Bag, X03, Gezina, 0031, South Africa.
[39] Lewis, A.E, Nathoo, J. and Mokone, T, 2007. Reactor design for metal precipitation
in mine water treatment, Research Project NO. K5/1729, Water Research Commission,
Private Bag, X03, Gezina, 0031, South Africa.
[40] Lewis, A.E. and Olsen, C. (Eds) 2007. BIWIC 2007. 14th International Workshop
on Industrial Crystallization, September 9th – 11th 2007, University of Cape Town,
Cape Town, South Africa, IOS Press BV, Amsterdam, The Netherlands, pp 1-284.
3
[41] Lewis, A.E and Nathoo, J., 2005. Prevention of calcium sulphate crystallisation in
water desalination plants using Slurry Precipitation and Recycle Reverse Osmosis
(SPARRO), Water Research Commission, Private Bag, X03, Gezina, 0031, South Africa.
[42] Hansford, G.S., Harrison, S.T.L, Lewis, A.E. and Moosa, S. 2005. An Investigation
of the Mechanism and Kinetics of Bacterial Sulphate Reduction. Water Research
Commission, Private Bag, X03, Gezina, 0031, South Africa.
[43] Hansford, G.S., Harrison, S.T.L, Lewis, A.E. and Moosa, S. 2004. The Mechanisms
and Kinetics of Biological Treatment of Metal-Containing Effluent. Water Research
Commission, Private Bag, X03, Gezina, 0031, South Africa.
[44] Ozinsky, A.E., Ekama, G.A. and Reddy, B.D., 1994. Mathematical simulation of
dynamic behaviour of secondary settling tanks, Water Research Commission, Private
Bag, X03, Gezina, 0031, South Africa
[45]
Dold, P.L, Wentzel, M.C, Billing, A.E, Ekama, G.A. and Marais, G.v.R, 1991.
Activated Sludge System Simulation Programs: version 1.0, Nitrification and
nitrification/denitrification systems, Water Research Commission, Private Bag, X03,
Gezina, 0031, South Africa.
Scientific/scholarly presentations at conferences (invited contributions indicated)
International, published, peer-reviewed conference proceedings
[46] Lewis, A.E., Stelzer, T., and Ulrich, J., 2008. Measuring the morphology of irregular
particles. In . In Janssens, P., (ed), 17th International Symposium on Industrial
Crystallization, Maastricht, The Netherlands, 14-17 September
[47] Reddy, S.T., Lewis, A.E., Witkamp, G.J,, van Spronsen, J., Kramer, H. and van
Rosmalen, G.M., 2008. Investigating the applicability of Eutectic Freeze
Crystallisation for the treatment and disposal of reverse osmosis retentates. In
Janssens, P., (ed), 17th International Symposium on Industrial Crystallization,
Maastricht, The Netherlands, 14-17 September
[48] Andreassen, J.P., Flaten, E.M., Beck, R and Lewis, A.E., 2008. Investigations of
spherulitic growth in industrial crystallization processes. In Janssens, P., (ed), 17th
International Symposium on Industrial Crystallization, Maastricht, The
Netherlands, 14-17 September (accepted)
[49] Ntuli, F. and Lewis, A.E., 2007. Precipitation kinetics of nickel in the presence of
iron, 14th International Workshop on Industrial Crystallization (BIWIC), 9-11
September 2007, Cape Town, South Africa, pp237-244.
[50] Hove, M., van Hille, R., and Lewis, A.E., 2007. The effect of different types of
seeds on the oxidation and precipitation of iron from homogeneous solutions, 14th
International Workshop on Industrial Crystallization (BIWIC), 9-11 September
2007, Cape Town, South Africa, pp108 – 118.
[51] Lewis, A.E., Nathoo, J. and Glück, T., 2006. Identifying critical operating
parameters and mechanism for a manganese sulphide precipitation process, 13th
International Workshop on Industrial Crystallization (BIWIC), 13 -15 September
2006, Delft, the Netherlands
4
[52] Reddy, S.T., and Lewis, A.E., 2006. Water and Salt Recovery from Brine Solutions,
13th International Workshop on Industrial Crystallization (BIWIC), 13 -15
September 2006, Delft, the Netherlands
[53] Kalman, H and Lewis, A.E., 2006. Review of recent developments in Particle
Technology in the Middle East and Africa, 5th World Congress on Particle Technology,
23-27 April, Lake Buena Vista, Florida, USA.
[54] Lewis, A.E. and Hounslow, M.J., 2005. Identifying mechanisms of nickel
precipitation in a hydrogen reduction process. In J. Ulrich, (ed), 16th Industrial
Crystallisation Conference, Dresden, Germany, 11-14th September 2005, pp. 391 - 398
[55] Lewis, A.E. and Swartbooi, A., 2005. Factors affecting metal removal in mixed
sulphide precipitation. In J. Ulrich, (ed), 16th Industrial Crystallisation Conference,
Dresden, Germany, 11-14th September 2005, pp. 279 - 285
[56] Lewis, A.E. and van Hille, R.P., 2005. Complexity in Sulphide Precipitation. In T.
Subbaiah, (ed), Emerging Trends in Mineral Processing and Extractive Metallurgy,
Bhubaneswar, India, 13-14 June 2005, pp. 298 - 305
[57] van Hille, R., Foster, T., Storey, A., Duncan, J. and Lewis, A.E., 2004. Heavy metal
precipitation by sulphide and bicarbonate: evaluating methods to predict anaerobic
digester overflow performance. In A.P. Jarvis, B.A. Dudgeon, and P.L.Younger,
(eds), Mine Water 2004: Process, Policy and Progress, Newcastle upon Tyne, 19-23
September 2004, pp. 141-150
[58] Lewis, A.E. and van Hille, R.P., 2003. Metal removal: crystallising some issues In L.
Lorenzen, D.J. Bradshaw, C. Aldrich, J. Eksteen, M. Wright, E. Thom, (eds),
Proceedings of the XXII International Minerals Processing Conference, Cape Town, South
Africa, 28 Sept – 3 Oct 2003, pp. 195
[59] Ochieng, A., Pearce, H. and Lewis, A.E., 2003. A CFD simulation of the
hydrodynamics of a reactor with draft tube In L. Lorenzen, D.J. Bradshaw, C.
Aldrich, J. Eksteen, M. Wright, E. Thom, (eds), Proceedings of the XXII International
Minerals Processing Conference, Cape Town, South Africa, 28 Sept – 3 Oct 2003, pp.
241
[60] Petersen, K., Lacour, S., van Hille, R.P.and Lewis, A.E., 2003. Copper sulphide
precipitation within a fluidised bed reactor In L. Lorenzen, D.J. Bradshaw, C.
Aldrich, J. Eksteen, M. Wright, E. Thom, (eds), Proceedings of the XXII International
Minerals Processing Conference, Cape Town, South Africa, 28 Sept – 3 Oct 2003, pp.
441
[61] Swartbooi, A., Lacour, S. and Lewis, A.E., 2003. An investigation into the
precipitation of nickel and cobalt as sulphides In L. Lorenzen, D.J. Bradshaw, C.
Aldrich, J. Eksteen, M. Wright, E. Thom, (eds), Proceedings of the XXII International
Minerals Processing Conference, Cape Town, South Africa, 28 Sept – 3 Oct 2003, pp.
440
[62] Lewis, A.E., Petersen, K. and Lacour, S., 2002. Copper removal from acid mine
drainage using a pellet reactor In A. Chianese, (ed), 15th Industrial Crystallisation
Conference, Sorrento, Italy, 15-18th September 2002, pp. 467-472
5
[63] Lewis, A.E., Nathoo, J., Seewoo, S. and Lacour, S., 2002. Prevention of scaling in
mine waters using Slurry Precipitation and Recycle Reverse Osmosis (SPARRO). In
A. Chianese, (ed), 15th Industrial Crystallisation Conference, Sorrento, Italy, 15-18th
September 2002, pp. 1443-1448
[64] Butler, B.K., Guillard, D., White, E.T. and Lewis A.E., 2001. Metal Carbonate and
Lactose – Two Environmental Crystallisations. Proceedings of the 6th World Congress of
Chemical Engineering, Melbourne, Australia, 23-27 September 2001, ISBN 0 7340
22018
[65] Lewis, A.E., and Roberts, M., 2001. Quantifying morphology of nickel crystals
Copper, Cobalt, Nickel and Zinc Recovery, Victoria Falls, Zimbabwe, 16 – 18 July 2001,
pp. 421-428
[66] Lewis A.E., Hugo A. and Beautement C. 1999. Waste Characterisation, Testing and
Modification: A Case Study for Secondary Lead Slag. In: C.V. Leon, ed. International
Mining and Environment Congress, Clean Technology: Third Millennium Challenge, Lima,
Peru, 13-16 July 1999. Colegio de Ingenieros del Peru, Lima, pp. 471-482 Invited
contribution
[67] Lewis, A.E. and Petrie, J.G., 1998. Process development for biological treatment of
sulphate wastewater. In: L. Bonomo and C. Nurizzo, (eds), 2nd International Conference,
Advanced Wastewater Treatment, Recycling and Reuse, Milan 14-16 Sept 1998. Milano:
IAWQ, pp. 639-648
[68] Lewis, A.E. and Dry, M., 1998. Secondary lead refining - A model to define
acceptable limits for a slag treatment process. In: S.R. Rao, L.M. Amaratunga, G.G
Richards and P.D. Kondos, (eds), Waste Processing and Recycling in Mineral and
Metallurgical Industries III, Canada 16-19 Aug 1998. Quebec: The Metallurgical
Society of CIM, pp. 195-208
[69] Lewis, A.E., 1998. Treatment of secondary lead residues for environmental
protection: Waste minimisation through process understanding and improvement.
In: S.R. Rao, L.M. Amaratunga, G.G Richards and P.D. Kondos, (eds), Waste
Processing and Recycling in Mineral and Metallurgical Industries III, Canada 16-19 Aug
1998. Quebec: The Metallurgical Society of CIM, pp. 181-194
International Conferences
[70] Lewis, A.E. and Hounslow, M.J., The population balance approach for modelling
crystallisation and other multiphase processes, 2006 Parker Centre Hydrometallurgy
Conference, 7-10 May 2006, Perth (Keynote Address)
[71] Lewis, A.E. and Zhang, Y., 2005. Pitfalls in Real World Particle Characterisation, 7th
International Conference on Crushing and Grinding, Midrand, Gauteng, 23 February 2005.
(Keynote address)
[72] Lewis, A.E. and Hounslow, M.J., 2003. Development and Testing of
Phenomenological Models and Solution Algorithms for the Crystallisation Research
Tool, US Department of Energy Crystallisation Project Team Meeting, Groton,
Connecticut, USA, 18-19 September 2003.
6
[73] Hounslow, M.J. and Lewis, A.E, 2003. Modelling of Particulate Systems, American
Association of Crystallization Technology Workshop, Groton, Connecticut, USA 15-18
September 2003. (Keynote address - not presented personally)
[74] Lewis, A.E. and Hounslow, M.J., 2003. As simple as possible, but not simpler:
Linking Population, Material and Energy Balances for Crystalliser Modelling, British
Association of Crystal Growth Annual Meeting 2003, Oxford, 7-8 September 2003.
Invited contribution
[75] Lewis, A.E., 2003. Women in Engineering in Sub-Saharan Africa, International
Institute of Women in Engineering Seminar 2003, Paris, France, June 28 – July 11, 2003.
Keynote speaker
[76] Jawitz, J. and Lewis, A.E., 2001. Using SOLO to assess understanding in a final
year engineering design project, First Electronic International Conference on Engineering
Education, June-August 2001.
[77] Butler, B.K. and Lewis, A.E., 2000. Waste not, want not: metal precipitation from
effluent streams. Minerals Engineering 2000, Cape Town, 13 - 15 November 2000.
[78] Guillard, D., Lewis, A.E. and Butler, B.K., 2000. Nickel carbonate precipitation in a
pellet reactor. Minerals Engineering 2000, Cape Town, 13 - 15 November 2000.
[79] Case, J., Gunstone R. and Lewis, A.E., 2000. Approaches to learning in a Second
Year Chemical Engineering Course. American Education Research Association AERA
Meeting, New Orleans, USA, April 2000. (not presented personally)
[80] Case, J., Gunstone R. and Lewis, A.E., 2000. The impact of students’ perceptions
on their metacognitive development: a case study. American Education Research
Association AERA Meeting, New Orleans USA, April 2000. (not presented
personally)
[81] Case, J., Gunstone, R., Lewis A.E., 1999. Student perceptions of new approaches to
teaching and assessment in an undergraduate chemical engineering course. 8th
European Conference for Research on Learning and Instruction, Advancing Learning
Communities In The New Millennium, Gothenburg, Sweden, 24-28 August 1999. (not
presented personally)
[82]
Case, J., Gunstone, R. and Lewis, A.E., 1999. Mapping students' metacognitive
development. 30th Annual Conference of the Australasian Science Education Research
Association (ASERA), Rotorua, New Zealand, 8 -11 July 1999. (not presented
personally)
[83] Case, J., Jawitz, J., Lewis, A.E. and Fraser, D.M.F., 1999. Cover Less, Uncover
More: A Case Study in 2nd Year Chemical Engineering. SA Association of Researchers
in Maths and Science Education (SAARMSE) conference, Harare, 13-16 Jan 1999. (not
presented personally)
Local Peer-reviewed Published Conferences
[84] Randall DG, Lewis AE, Nathoo J., 2008. Kinetic aspects of multi-component
systems operated under eutectic freeze crystallisation conditions, SAIMM
Conference, Cape Town, 6-8 August 2008
7
[85] Mangere M, Nathoo J, Lewis AE., 2008. Precipitation of selenium from acidic
copper sulphate solution using sodium sulphite, SAIMM Conference, Cape Town,
6-8 August 2008
[86] Zibi L, Lewis AE, Nathoo J., 2008. Applicability of using EFC to treat Hydrometallurgical Brines, SAIMM Conference, Cape Town, 6-8 August 2008
[87] Bhikha H, Lewis AE, Nathoo J., 2008. Water minimisation at Skorpion Zinc – A
systemic approach to process optimisation, SAIMM Conference, Cape Town, 6-8
August 2008
[88]
Mbedzi N, Nathoo J, Lewis AE., 2008. Removal of aluminium silicate scaling
species from a gas liquor stream using alumina, SAIMM Conference, Cape Town,
6-8 August 2008
[89]
Govan P, Lewis AE, Nathoo J., 2008.
Developing a fundamental
understandingof the Kieserite crystallization process, SAIMM Conference, Cape
Town, 6-8 August 2008
[90] Ramaru R, Nathoo J, Lewis AE., 2008. Phosphate crystallization from dewatering
liquors, SAIMM Conference, Cape Town, 6-8 August 2008
[91]
Hove M, van Hille RP, Lewis AE., 2008. Effect of seed concentration on the
oxidation and precipitation of iron, SAIMM Conference, Cape Town, 6-8 August
2008
[92]
Mokone T, Lewis AE, van Hille R., 2008. Effect of surface properties on solidliquid separation characteristics of metal sulphides, SAIMM Conference, Cape
Town, 6-8 August 2008
[93]
Reddy ST, Lewis AE, Nathoo J., 2008. Treatment of reverse osmosis retentate
using eutectic freeze crystallisation, SAIMM Conference, Cape Town, 6-8 August
2008
[94]
Lewis AE., 2008. A novel approach to the treatment of water containing high
dissolved salts, SAIMM Conference, Cape Town, 6-8 August 2008
[95] Mokone, T.P, van Hille, R, and Lewis, A.E., 2007. An investigation into the
feasibility of metal sulphide precipitation in a seeded fluidised bed reactor and zinc
sulphide precipitation using H2S gas in a bubble column, SAIMM Conference,
Cape Town, 2-3 August 2007.
[96] Randall, D.G., and Lewis, A.E., 2007. Investigating characteristics of ice crystals
formed in eutectic freeze crystallization, SAIMM Conference, Cape Town, 2-3
August 2007.
[97] Ntuli, F, and Lewis, A.E., 2007. Nickel powder precipitation in the presence of
iron, SAIMM Conference, Cape Town, 2-3 August 2007.
[98] Bhikha, H, Deglon, D.A.., R, and Lewis, A.E., 2007. Technological Challenges in
Mineral Processing and Extractive Metallurgy, SAIMM Conference, Cape Town, 23 August 2007.
8
[99] Hove, M., van Hille, R.P., Lewis, A.E., and Muhr, H., 2007. Using Raman
spectroscopy to study the kinetics of transformation of ferrihydrite into goethite,
SAIMM Conference, Cape Town, 2-3 August 2007.
[100] Govan, P, Nathoo, J, and Lewis, A.E., 2007. Developing a fundamental
understanding of the Kieserite Crystallization Process, SAIMM Conference, Cape
Town, 2-3 August 2007.
[101] Mausse, C., Seckler, M., Guardani, R., Bernado, A. and Lewis, A.E., 2006. Use of
Artificial Neural Network Models to Derive Particle Size Distributions from Chord
Length Distributions, Mineral Processing 2006, Cape Town, 3-4 August 2006.
[102] Ntuli, F. and Lewis, A.E., 2006. The Effect of a Morphology Modifier on the
Precipitation behaviour of Nickel Powder, Mineral Processing 2006, Cape Town,
3-4 August 2006.
[103] Lewis, A.E., Nathoo, J. and Gluck, T., 2006., Identifying critical operating
parameters and mechanism for a manganese sulphide precipitation process, Mineral
Processing 2006, Cape Town, 3-4 August 2006.
[104] Reddy, S.T. and Lewis, A.E., 2006, Innovative approaches to brine treatment,
Mineral Processing 2006, Cape Town, 3-4 August 2006.
[105] Hove, M., van Hille, R. P. and Lewis, A.E., 2006. Characterisation of iron sludge
formed during hydroxide precipitation of iron from ferrous sulphate solutions,
Mineral Processing 2006, Cape Town, 3-4 August 2006.
[106] Karbanee, N., van Hille, R.P. and Lewis, A.E., 2006. Using gaseous sulphide to
control supersaturation in metal sulphide precipitation, Mineral Processing 2006,
Cape Town, 3-4 August 2006
[107] Mokone, T. and Lewis, A.E., 2006. Recovery of zinc from solution using a mixed
sulphide/bicarbonate precipitating reagent, Mineral Processing 2006, Cape Town,
3-4 August 2006
[108] Mausse, C. and Lewis, A.E., 2005. Numerical simulation of the size enlargement
mechanisms of nickel particles during nickel reduction, Mineral Processing 2005,
Cape Town, 4 -5 August 2005, PP03, p. 103
[109] Lewis, A.E. and Nathoo, J., 2005. Scale prediction in real mine waters, Mineral
Processing 2005, Cape Town, 4 -5 August 2005, OR33, p. 55
[110] Mokone, T. and Lewis, A.E., 2005. Control of fines formation in precipitation of
metal salts from effluent streams. Mineral Processing 2005, Cape Town, 4 - 5 August
2005
[111] Hove, M., van Hille, R. P. and Lewis, A.E., 2005. Rate processes in the removal of
iron from AMD by hydroxide precipitation, Mineral Processing 2005, Cape Town, 4 5 August 2005, OR32, p. 54
[112] Ntuli, F., Taty-Costodes, V.C. and Lewis, A.E., 2005. Evolution of the particle size
distribution of nickel powder precipitated by hydrogen reduction, Mineral Processing
2005 Cape Town, 4 - 5 August 2005, SP09, p. 75
9
[113] Ochieng, A. and Lewis, A.E., 2005. CFD simulation of solids concentration
distribution in a tank stirred with an axial impeller. Mineral Processing 2005, Cape
Town, 4 - 5 August 2005, OR30, p. 52
[114] Zhang, Y. and Lewis, A.E., 2005. Reaction kinetics of calcium sulphate dihydrate,
Mineral Processing 2005, Cape Town, 4 -5 August 2005, SP12, p. 81
[115] Karbanee, N., van Hille, R.P. and Lewis, A.E., 2005. Investigation into the
precipitation of mixed nickel cobalt sulphides, Mineral Processing 2005, Cape Town, 4
- 5 August 2005, SP10, p.77
[116] Lewis, A.E. and Hounslow, M., 2004. Understanding factors influencing nickel
morphology, Mineral Processing 2004, Cape Town, 4 - 6 August 2004, pp. 76
[117] Pillay, V. and Lewis, A.E., 2004. The system MgSO4 – H2O at eutectic conditions:
Thermodynamic solubility products of MgSO4.12H2O and MgSO4.7H2O, Mineral
Processing 2004, Cape Town, 4 - 6 August 2004, pp. 77
[118] Taty -Costodes, V.C. and Lewis, A.E., 2004. Aggregation of nickel carbonate in a
fluidised bed reactor, Mineral Processing 2004, Cape Town, 4 - 6 August 2004, pp. 75
[119] Zhang, Y. and Lewis, A.E., 2004. Real world complications in the measurement of
particle size, Mineral Processing 2004, Cape Town, 4 - 6 August 2004, pp. 93
[120] Ochieng, A. and Lewis, A.E., 2004. CFD simulation of mixing and power
consumption at low impeller clearance, In, Proceedings of the 4th South African
Conference on Applied Mechanics, , Johannesburg, 18 - 21 January, 2004, no 81, pp. 1-9
[121] Ochieng, A. and Lewis, A. E., 2003. A CFD Simulation of mixing in a pitched
blade impeller agitated tank, 2003. South African Chemical Engineering Congress, Sun
City, 3 - 5 September 2003, pp. 120
[122] Roberts, M., van Hille, R.P. and Lewis, A.E., 2003. Quantifying nickel particle
morphology, South African Chemical Engineering Congress, Sun City, 3 - 5 September
2003, pp. 166
[123] Swartbooi, A., van Hille, R.P. and Lewis, A.E., 2003. Precipitation of nickel(II) and
cobalt(II) using hydrogen sulphide gas, South African Chemical Engineering Congress,
Sun City, 3 - 5 September 2003, pp. 63
[124] van Hille, R.P., Foster, T., Storey, A. and Lewis, A.E., 2003. Heavy metal
precipitation by sulphide and bicarbonate: Evaluating methods to predict anaerobic
digester overflow performance, South African Chemical Engineering Congress, Sun City,
3 - 5 September 2003, pp. 75
[125] Nathoo, J., Lewis, A.E., Lacour, S. and van Hille, R.P, 2002. Investigating the effect
of gypsum crystal morphology on membrane damage in the SPARRO process,
Mineral Processing 2002, Cape Town, 1-2 August 2002, pp. PS10
[126] Ochieng, A., Lewis, A.E. and Pearce, H., 2002. CFD modelling of the
hydrodynamics of a nickel precipitation reactor. Mineral Processing 2002, Cape Town,
1-2 August 2002, pp. OR27
10
[127] Petersen, K., Lewis, A.E., Lacour, S. and van Hille, R.P., 2002. Copper sulphide
precipitation using a fluidised bed reactor, Mineral Processing 2002, Cape Town, 1-2
August 2002, pp. OR29
[128] Roberts, M., Lewis, A.E., Lacour, S. and van Hille, R.P., 2002. Mixing behaviour in
the high pressure nickel reduction process, Mineral Processing 2002, Cape Town, 1-2
August 2002, pp. OR11
[129] Seewoo, S., Lewis, A.E., Lacour, S. and van Hille, R.P., 2002. Control of the
desupersaturation reactor in the slurry precipitation recycle reverse osmosis
(SPARRO) process, Mineral Processing 2002, Cape Town, 1-2 August 2002, pp. PS09
[130] Swartbooi, A., Lacour, S. and Lewis, A.E., 2002. An investigation into the
precipitation of nickel and cobalt as sulphides in a fluidised bed reactor, Mineral
Processing 2002, Cape Town, 1-2 August 2002, pp. PS08
[131] Petersen, K. and Lewis, A.E., 2001. Sulphide precipitation of metals from acid mine
drainage in a fluidised bed reactor. Mineral Processing 2001, Cape Town, 2-3 August
2001, pp. PS09
[132] Roberts, M., and Lewis, A.E., 2001. High pressure nickel precipitation, Mineral
Processing 2001, Cape Town, 2-3 August 2001, pp. PS08
[133] Butler, B., J., Nathoo, J., Centurier-Harris, J.P. and Lewis, A.E., 2000.
Understanding metal precipitation. Mineral Processing 2000, Cape Town, 24-25
August 2000, pp. OR12
[134] Guillard, D., Butler, B. and Lewis, A.E., 2000. Carbonate precipitation of metals in
a pellet reactor. Mineral Processing 2000, Cape Town, 24-25 August 2000, pp. PS02
[135] Knobel, A.K and Lewis, A.E., 2000. A mathematical model of a high sulphate
wastewater anaerobic treatment system. Mineral Processing 2000, Cape Town, 24-25
August 2000., pp. PP05
[136] Lahav, O., Lewis, A.E. and Loewenthal, R.E., 2000. Elemental sulphur recovery
from AMD waters using a silicone membrane process - chemistry and control
considerations. BIOY2K Combined Millenium Meeting, Grahamstown, 25-28 January
2000, pp. 610
[137] Lewis, A.E. and Knobel, A.K., 2000. A Primer for Modelling and Simulation: a
Case Study of a Mathematical Model for a high Sulphate Wastewater Anaerobic
Treatment System. BIOY2K Combined Millennium Meeting, Grahamstown, 25-28
January 2000, pp. 609
[138] Matimolane, M.R., Lewis, A.E and Loewenthal, R.E., 1999. Sulphur Recovery from
Acid Mine Drainage. Mineral Processing 99, SAIMM, 5-6 August 1999, pp. OR19
[139] Beautement, C. and Lewis, A.E., 1998. Treatment of secondary lead residues for
lead recovery and environmental protection. Mineral Processing 98, SAIMM, 6-7 Aug
1998, pp. PS03
11
[140] Knobel, A.N. and Lewis, A.E., 1998. The selective precipitation of heavy metals
from acid mine drainage – a computer simulation. Mineral Processing 98, SAIMM, 6-7
Aug 1998, pp. PS01
[141] Lewis, A.E., 1998. Treatment of secondary lead residues for environmental
Protection: waste minimisation through process characterisation and optimisation.
Mineral Processing 98, SAIMM, Cape Town, 6-7 Aug 1998, pp. PS14
[142] Lewis, A.E. and Dry, M. 1998. Secondary lead refining: A model to define
acceptable limits for a slag treatment process. Mineral Processing 98, SAIMM, Cape
Town, 6-7 Aug 1998, pp. OR28
Local Conferences
[143] Mausse, C., Seckler, M., Guardani, R., Bernado, A. and Lewis, A.E., 2006, Use of
Artificial Neural Network Models to Derive Particle Size Distributions from Chord
Length Distributions, SAIChE R& D Day, Stellenbosch University, 23 June 2006.
[144] Taty-Costodes, V.C. and Lewis, A.E., 2005. Effect of column design in fines
production during crystallisation of Ni(OH)0.67(CO3)0.67. SAIChE R& D Day,
University of Cape Town, 3 June 2005.
[145] Delport, E., van Hille, R.P., Alexander, M. and Lewis, A.E., 2005. Sulphate
precipitation in industrial effluents with a high organic load. SAIChE R& D Day,
University of Cape Town, 3 June 2005.
[146] van Hille, R P., Foster, T., Story, A. and Lewis, A.E., 2003. Heavy metal
precipitation by sulphide and bicarbonate: Evaluating methods to predict anaerobic
digester overflow performance, Cape Biotech Conference 2003, University of Cape
Town, 17 -18 November 2003.
[147] Nathoo, J., van Hille, R.P. and Lewis, A.E., 2003. Investigating the effect of
gypsum crystal morphology on membrane damage in the SPARRO process, 5th
WISA-MTD Workshop: Membrane Developments in Waste Minimisation, Water Treatment
and the Process Industry, Vereeniging, 30 March – 2 April 2003.
[148] Seewoo, S., van Hille, R.P. and Lewis, A.E., 2003. Control of the morphology of
gypsum in the desupersaturation reactor used in the SPARRO process, 5th WISAMTD Workshop: Membrane Developments in Waste Minimisation, Water Treatment and the
Process Industry, Vereeniging, 30 March – 2 April 2003.
[149] Lewis, A.E. 2002. Overview of precipitation and crystallisation research at the
University of Cape Town, First Separation Technology in South Africa (SEPSA)
Workshop, CSIR Bio/Chemtek, Modderfontein, 29 November 2002.
[150] Edwards, W., Corbett, C., Lewis, A.E., Loewenthal, R.E. and Rose, P.D., 2000.
Biogenic Sulphide for the Precipitation of Fe(II) from Acid Mine Drainage
Wastewater. WISA Biennial Conference 2000, Sun City, 28 May – 1 June 2000.
[151] Lewis, A.E., Lahav, O. and Loewenthal, R.E., 2000. Chemical Considerations for
Sulphur Recovery from Acid Mine Drainage. WISA Biennial Conference 2000, Sun
City, 28 May - 1 June 2000.
12
[152] Beautement, C. and Lewis, A.E., 1998. Treatment of lead residues for lead
recovery and environmental protection. Chemical Engineering R&D conference,
Stellenbosch University, Nov 1998.
[153] Lewis, A.E., 1998. The use of a process simulation package in the final year design
course, Wits/AECI Chemical Engineering Lecturers conference, University of
Witwatersrand, 1998.
Patent
[37]
2008/8 Title: A Process. Inventor Lewis, A.E., and Nathoo, J. Patent No.
2008/07293. I was the originator of the patent. Nathoo is a co-worker who has
contributed extensively to the Eutectic Freeze Crystallization project.
Research/Technical Reports to Industry
[155]
Lewis, A.E., Nathoo, J., and Chiang, Y-L., 2008. Gibbsite Precipitation from
Synthetic Bayer Liquor Using an Anti-solvent: A Batch Feasibility Study. Research
progress report (Part 2) for Aluminium Company of America (ALCOA), 31 July 2008
[156]
Petrik, L.F., Lewis, A.E., Hendry B.A., Randall, D.G., Balfour, G., Yalala, Z.G.B.,
Musyoka, N., and Barnard, B., 2008. Brine treatment and disposal Progress Report
for Coaltech 2020, October 2008
[157]
Mangere, M., Nathoo, J., and Lewis, A.E., 2008. Continuous precipitation using the
replication model system: Selenium Precipitation from Acidic Copper Sulphate
Solution, Progress Report to Anglo Platinum, September 2008
[158]
Petrik, L.F., Lewis, A.E., Hendry B.A., Reddy, S.T., Balfour, G., Yalala, Z.G.B.,
Musyoka, N., and Barnard, B., 2008. Brine treatment and disposal Progress Report
for Coaltech 2020, August 2008
[159]
Lewis, A.E., Nathoo, J., and Ramaru, R., 2008. Phosphate precipitation from
Tswane Municipality, Research Progress Report, 30 July 2008
[160]
Petrik, L.F., Lewis, A.E., Hendry B.A., Reddy, S.T., Balfour, G., Yalala, Z.G.B., and
Musyoka, N., 2008. Brine treatment and disposal Progress Report for Coaltech 2020,
June 2008
[161]
Mangere, M., Nathoo, J., and Lewis, A.E., 2008. Continuous precipitation using the
replication model system: Selenium Precipitation from Acidic Copper Sulphate
Solution, First Progress Report to Anglo Platinum, Feb – May 2008
[162]
Lewis, A.E., Nathoo, J. and Mokone, T., 2008. Reactor design for metal
precipitation in mine water treatment, Water Research Commission, Private Bag, X03,
Gezina, 0031, South Africa., Final Report, March 2008
[163]
Lewis, A.E., Nathoo, J., Reddy T. and Randall, D., 2008. Novel technology for
recovery of water and solid salts from hypersaline brines: Eutectic Freeze
Crystallization, Water Research Commission, Private Bag, X03, Gezina, 0031, South
Africa., Progress Report 2, March 2008
13
[164]
Lewis, A.E., Nathoo, J., and Govan, P., 2007. Measurement and modelling of
solubility data for the Anglo-Zn process. Research progress report (Part 2) for
Anglo American Research Laboratories, 31 January 2008
[165]
Lewis, A.E., 2007. Aqueous chemistry modelling of the scaling potential of gas
liquor, Research Report for Sasol Technology Pty Ltd, December 2007
[166]
Lewis, A.E., Nathoo, J., and Govan, P., 2007. Measurement and modelling of
solubility data for the Anglo-Zn process. Research progress report (Part 1) for
Anglo American Research Laboratories, 14 December 2007
[167]
Nathoo, J. and Lewis, A.E., 2007. Evaluation of BASF Selexsorb Alumina for the
removal of contaminants from gas liquor in continuous mode. Research Report to
Sasol Technology, 11 December 2007
[168]
Petrik, L.F., Lewis, A.E., Hendry B.A., Randall, D.G., Balfour, G., and Yalala,
Z.G.B., 2008. Brine treatment and disposal Progress Report for Coaltech 2020,
December 2007
[169]
Lewis, A.E., Nathoo, J., and Chiang, Y-L., 2007. Preliminary Feasibility Analysis on
Isothermal Batch Gibbsite Precipitation in the Presence of an Anti-solvent.
Research progress report (Part 1) for Aluminium Company of America (ALCOA),
30 November 2007
[170]
Lewis, A.E., Nathoo, J. and Mokone, T., 2007. Reactor design for metal
precipitation in mine water treatment, Water Research Commission, Private Bag, X03,
Gezina, 0031, South Africa., Progress Report, November 2007
[171]
2007
Lewis, A.E. and Reddy, S., 2006. Project Progress Report, Coaltech 2020, November
[172]
Lewis, A.E., Nathoo, J., Randall, D.G., and Reddy, S.T., 2007. Novel Technology
for Recovery of Water and Solid Salts from Hypersaline Brines: Eutectic Freeze
Crystallization, Water Research Commission, Private Bag, X03, Gezina, 0031, South
Africa., Progress Report, November 2007
[173]
Nathoo, J. and Lewis, A.E., 2007. Progress Report # 3 (Phase 2 Part 2):
Investigating the removal of contaminants from the Gas Liquor (GL) using alumina
in continuous mode. Research Report to Sasol Technology, 25 October 2007.
[174]
Nathoo, J. and Lewis, A.E., 2007. Progress Report # 2 (Phase 2 Part 2):
Investigating the removal of contaminants from the Gas Liquor (GL) using alumina
in continuous mode. Research Report to Sasol Technology, 3 October 2007.
[175]
Lewis, A.E., and Nathoo, J., 2007. Acid generation by precipitation in the
regenerative atmospheric leach process. Progress Report (Part 1b) for Anglo
American Research Laboratories, 13 September 2007
[176]
Nathoo, J. and Lewis, A.E., 2007. Progress Report Phase 2 Part 2: Preliminary
results: Investigating the removal of contaminants from the Gas Liquor (GL) using
alumina in continuous mode. Research Report to Sasol Technology, August 2007
14
[177]
Petrik, L.F., Lewis, A.E., Hendry B.A., Reddy, S.T., Balfour, G., Mishra, V.K., and
Vadapalli, V.R.K.., 2007. Brine treatment and disposal Progress Report for Coaltech
2020, August 2007
[178]
Nathoo, J. and Lewis, A.E., 2007. Progress Report Phase 2: Preliminary results
pertaining to the feasibility of using silica gel. Research Report to Sasol Technology,
15 June 2007.
[179]
Nathoo, J. and Lewis, A.E., 2007. Progress Report # 1 (Phase 2 Part 2):
Investigating the removal of contaminants from the Gas Liquor (GL) using alumina
in continuous mode. Research Report to Sasol Technology, June 2007
[180]
Nathoo, J. and Lewis, A.E., 2007. Progress Report Phase 2: Preliminary results
pertaining to the feasibility of using silica gel. Research Report to Sasol Technology,
15 June 2007
[181]
Petrik, L.F., Lewis, A.E., Hendry B.A., Reddy, S.T., Mishra, V.K., and Vadapalli,
V.R.K.., 2007. Brine treatment and disposal Progress Report for Coaltech 2020,
April 2007
[182]
Lewis, A.E. and Nathoo, J., 2007. Particle analysis and mathematical description of
mini plant crystal product. Research Report for Anglo American Research Laboratories,
17 January 2007
[183]
Lewis, A.E. and Nathoo, J., 2006. Contaminant removal from Gas Liquor using
Hydrometallurgical Methods, Research Report for Sasol Technology Pty Ltd,
15 December 2006
[184]
2006
Lewis, A.E. and Reddy, S., 2006. Coaltech 2020 Project Progress Report, November
[185]
Lewis, A.E. and Nathoo, J., 2006. Particle analysis and mathematical description of
mini plant crystal product. Research Report for Anglo American Research Laboratories,
20 October 2006
[186]
Lewis, A.E. and Nathoo, J., 2006. Characterisation of precipitation of magnesium
hydroxide from brine, Research report and DVD for Industrial and Petrochemical
Consultants (Pty) Ltd, 21 August 2006
[187]
Lewis, A.E. and Nathoo, J., 2006. Progress report # 1: Contaminant removal from
Gas Liquor using Hydrometallurgical Methods, Progress Report for Sasol Technology
Pty Ltd, 11 July 2006
[188]
Lewis, A.E., 2006. Process Development for NaSCN removal, Specialist Report
Review for Sasol Technology Pty Ltd.
[189]
Lewis, A.E. and Nathoo, J., 2006. Contaminant removal from Gas Liquor using
Hydrometallurgical Methods, Research Report for Sasol Technology Pty Ltd.
[190]
Lewis, A.E, 2006. Metal precipitation in mine water treatment by sulphate
reduction, Final Report for WRC Consultancy, May 2006
15
[191]
Lewis, A.E., and Nathoo, J., 2005. Final Report: Phases 1 and 2 – Measurement
and modelling of solubility data, Research report for Anglo American Research
Laboratories, 7 December 2005
[192]
Lewis, A.E, 2005. Metal precipitation in mine water treatment by sulphate
reduction, Research Report for WRC Consultancy, November 2005
[193]
Lewis, A.E. and Nathoo, J., 2005. Measurement and modelling of solubility data,
Research Report for Anglo American Research Laboratories, November 2005
[194]
Lewis, A.E. and Nathoo, J., 2005. Manganese purification process re-engineering,
Research Report for Manganese Metal Company, November 2005
[195]
Lewis, A.E., 2005. Analysis of V2O5 Crystalline product: Current and new
production, Research Report for Highveld Steel and Vanadium Corporation Limited,
Witbank, August 2005
[196]
Lewis, A.E., 2005. Aqueous chemistry simulation for raw gas liquor, Research
Report for Sasol Technology Pty Ltd, August 2005
[197]
Lewis, A.E.and Ntuli, F., 2005. An investigation into the crystallisation behaviour
of nickel through reduction by hydrogen – Phase 3, Technical Report for Impala
Platinum, May 2005
[198]
Lewis, A.E., 2004. Antisolvent crystallisation preliminary process review and
analysis, Technical Report for Somchem, Wellington, October 2004
[199]
Lewis, A.E., Taty Costodes, V.C., Ntuli, F. and Nathoo, J., 2004. An investigation
into the crystallisation behaviour of nickel through reduction with hydrogen –
Phase 3, Technical Report for Impala Platinum, October 2004
[200]
Lewis, A.E., 2004. An investigation into the crystallisation behaviour of nickel
through reduction with hydrogen - Phase 3, Technical Report for Impala Platinum,
March 2004
[201]
Lewis, A.E. and Hounslow, M. J., 2003. Development and Testing of
Phenomenological Models and Solution Algorithms for the Crystallisation Research
Tool, US Department of Energy Crystallisation Project Team Technical Report 4:
Verification of a model for a well mixed compartment, December 2003
[202]
Lewis, A.E. and Hounslow, M.J., 2003. Development and Testing of
Phenomenological Models and Solution Algorithms for the Crystallisation Research
Tool, US Department of Energy Crystallisation Project Team Technical Report 3:
Development and implementation of a model for a well-mixed compartment,
December 2003
[203]
Lewis, A.E., 2002. An investigation into the crystallisation behaviour of nickel
through reduction with hydrogen - Phase 2, Technical Report for Impala Platinum,
December 2002
[204]
Lewis, A.E. and van Hille, R.P., 2002. Recovery of sodium bicarbonate from brine
using carbon dioxide, Technical Report for Anglo Platinum, November 2002
16
[205]
2002
Lewis, A.E. and Lacour, S., 2002. Recovery of Cobalt from Hydrometallurgical
Process Liquors, Technical Report for Anglo American Research Laboratories, October
[206]
Lewis, A.E., 2001. An investigation into crystallisation behaviour of nickel through
reduction with hydrogen - Phase 1, Technical Report for Impala Platinum, December
2001
[207]
Lewis, A.E., 2001. Specialist Review of Various Analytical Tests and Procedures for
Anglo American Research Laboratories, Specialist review for Anglo American
Research Laboratories, September 2001
[208]
Lewis, A.E., 2001. Ore Characterisation Tests - Methods, Standards and
Procedures, Specialist review for Anglo American Research Laboratories, August 2001
[209]
Lewis, A.E. and J Hagemann, 2001. An investigation into the crystallisation
behaviour of a precious metal salt, Technical Report for Anglo Platinum, July 2001
The full scale plant has been commissioned by Anglo Platinum and the feedback on the
commissioning and outcomes of the full scale process have been extremely positive. The
commissioning process itself was one of the smoothest ever experienced by the company;
with the precious metal precipitation process increasing the first pass purity from 75% in
the old process to 98.5% in the new process. The product size has also increased. The size
and purity increases, as well as the robustness of the process were directly ascribed to the
research work carried out by the Precipitation and Crystallisation Research Facility at UCT.
This is now the largest plant for the production of this particular precious metal salt in the
world.
[210]
Lewis, A.E., 2001, Specialist Review of the Air Pollution, Odour and Risk
Assessment Specialist Studies for the Caltex Sulphur EIA, Specialist review for
Caltex Refinery, Milnerton, April 2001
[211]
Lewis, A.E., 2000. Specialist Review of the Air Pollution Impact and Quantitative
Risk Assessment Studies Undertaken for the Caltex Sulphur EIA, Specialist review
for Caltex Refinery, Milnerton, December 2000
[212]
Lewis, A.E., 2000. An investigation into crystallisation behaviour of nickel through
reduction with hydrogen - Phase 0, Technical Report for Impala Platinum,
November 2000
[213]
Lewis, A.E., Centurier-Harris, J. and Butler, B. 2000. The Reduction of ACP to
Platinum, Technical Report for Anglo Platinum, April 2000
17