BASE METALS 2007
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Fourth Southern African Base Metals Conference
Swakopmund, Namibia, 23-25 July 2007
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Please note that this provisional programme is still subject to major changes.
Sunday 22 July 2007
5:00pm - 8:00pm Early Registration
6:00pm - 8:00pm Welcome / Cocktail party
Monday 23 July 2007
7:00am - 8:00am Registration
Session 1 - Opening Session (Chaired by ?)
8:00am Welcoming - Chairman of SAIMM Namibia
? (Chairman: SAIMM Namibia branch)
8:05am Welcoming Address - Southern African Institute of Mining and Metallurgy
Pat Willis (President: SAIMM)
8:15am Opening address - Namibian Chamber of Mines
Mark Dawe (President: Namibian Chamber of Mines)
9:00am Title? (Keynote address)
Mark Tyler (Nedbank Corporate Capital, South Africa)
9:45am Exxaro for Base Metals in Sub-Saharan Africa (Keynote address)
Mxolisi Mgojo (General Manager: Base Metals, Exxaro, South Africa)
10:15am Tea
Session 2 - REACH (Chaired by ?)
10:45am An introduction to the European Union's REACH legislation
Alan McKenzie (Mintek, South Africa)
11:10am Some practical aspects for the implementation of REACH
Jacques Katabua (Exxaro and Chamber of Mines, South Africa)
11:35am Implementation of REACH-GHS
? (Eurometaux and ICMM)
12:00pm What are the implications of REACH for the base metals industry?
Alan McKenzie (Mintek, South Africa)
12:25pm Lunch
Visit 1 to Rossing Uranium (In parallel with Session 3)
1:30pm Travel to Rossing
5:30pm Return
Session 3 - Hydrometallurgy (Chaired by ?)
1:30pm Oxidative precipitation of Fe and Mn by Air/SO2
M Mouton & Johanna van Deventer (Mintek, South Africa)
1:55pm Solvent extraction test work to evaluate a versatic 10/Nicksyn synergistic system for Nickel-calcium separation
Rene du Preez, G Nel, & Marthie Kotze (Mintek & Lionore, South Africa)
2:20pm Parameters influencing the leachability of calcines emanating from
microwave roasted sphalerite and pyrite concentrates
Antoine Mulaba-Bafubiandi & T Phiri (University of Johannesburg, South Africa)
2:45pm Copper and cobalt extraction from sulphate solution using
natural clinoptilolite
TL Soko & Antoine Mulaba-Bafubiandi (University of Johannesburg, South Africa)
3:10pm Tea
6:00pm Evening function - Restaurants
Tuesday 24 July 2007
7:00am - 8:15am Registration
Session 4 - Geology and Mining (Chaired by ?)
8:15am Geology and Mining (Keynote address)
? (?, Country)
9:00am Rock support in Southern African Hard Rock Mines
D van Heerden (Minova, South Africa)
9:25am Remote Mine Wide Communications
M Woodhall (GMSI Mining Operations Technologies, Country ?)
9:50am Intensive on-mine exploration program, The Modified Focus at Rosh
Pinah Zinc Corporation, Namibia
PH van Rooyen & MD Garbers (Rosh Pinah, Namibia)
10:15am Tea
(Parallel) Session 5 - Geology and Mining (Chaired by ?)
10:45am Grade control blending and selectivity for optimal process
performance at the Skorpion Zinc mine, Namibia
GB Gnoinski (Namzinc, Namibia)
11:10am Exploitation of a massive low-grade zinc-lead resource at Rosh Pinah
Zinc Corporation, Namibia
H Fourie, PH van Rooyen, S Rupprecht, T Lund, &
NM Vegter (Rosh Pinah Zinc Corporation, RSG Global, & Exxaro
Resources, Namibia & South Africa)
11:35am Mining for a DMS application in a Base Metal Environment
NN Vegter (HO: Technology, South Africa)
12:00pm Geology and Mining ?
? (?, Country)
(Parallel) Session 6 - Analytical and Mineral Processing (Chaired by ?)
10:45am Planning a New Analytical Laboratory for an Uranium Mine
PK Hofmeyr & J Taylor (IMP Automation, South Africa)
11:10am Plant stability and increased efficiencies from inline mineral
analysis: Tomorrow's Technology - Out of Africa - Today
Pieter de Waal (Blue Cube Systems, South Africa)
11:35am Development of a mineral flotation frother for Nchanga Mine on the
Copperbelt
Sondasi, Grobler, Chidley, & Zimba (Betachem &
Konkola Copper Mines, Zambia)
12:00pm The influence of the water quality on the flotation of the Rosh Pinah
complex lead-zinc sulfides
Roelf Sandenbergh & Wei (University of Pretoria, South Africa)
12:25pm Lunch
Visit 2 to Rossing Uranium (In parallel with Session 7)
1:30pm Travel to Rossing
5:30pm Return
Session 7 - Mineral Processing and Hydrometallurgy (Chaired by ?)
1:30pm Intelligent Gearing System
Dirk van Dyk (David Brown Gear Industries, South Africa)
1:55pm Rubber belt filter with side vacuum
R Kroukamp (Larox, South Africa)
2:20pm Selective extraction of Nickel from Aqueous Solutions Containing
Cu, Zn, and Cd ions by LIX 984N extraction
Maryam Jozegholami (Tehran University, Iran)
2:45pm Microwave-assisted SO2 flushed acid leaching of mixed cobalt-copper
oxidised ores
Antoine Mulaba-Bafubiandi, J Ndalamo, RT Phiri, & BB Mamba (University of Johannesburg, South Africa)
3:10pm Tea
6:00pm Gala Dinner in the Desert
Wednesday 25 July 2007
7:00am - 8:00am Registration
Session 8 - Todd Harvey (Chaired by ?)
8:00am Title? (Keynote address)
Todd Harvey (GeoBiotics, USA)
(Parallel) Session 9 - Hydrometallurgy (Chaired by ?)
8:45am Base Metal Heap Leaching Applications and Process Parameters
Petrus van Staden (Mintek, South Africa)
9:10am The Influence of Reactor Design on the Economics of Hydrometallurgical
Processes
Jussi Vaarno (Outokumpu Technologies)
9:35am Commissioning of Skorpion Zinc Re-acidification Circuit
H de Klerk (Skorpion Zinc, Namibia)
(Parallel) Session 10 - Minerals Processing (Chaired by ?)
8:45am Dense medium solution for pre-beneficiation
Johann Grobler (Exxaro: Ferroalloy, South Africa)
9:10am An assessment of Pentlandite occurrence in the run-of-mine ore
from BCL Mines (Botswana) and its impact on the flotation yield
Antoine Mulaba-Bafubiandi & Oaitse Medupe Thulane (University of Johannesburg, South Africa & BCL, Botswana)
9:35am Process Development of the Nkomati PCMZ base metal sulphide ore
RL Bowers & DS Smit (Nkomati Joint Venture, South Africa)
10:00am Tea
(Parallel) Session 11 - Hydrometallurgy (Chaired by ?)
10:30am Manganese removal from cobalt solutions with dilute sulphur dioxide
gas mixture
Fox, van Rooyen, & Archer (Impala Platinum
Refineries, TWP Matomo Process Plant, & Mintek, South Africa)
10:55am Cd removal from Co electrolytes
J Deventer, Rene du Preez, Marthie Kotze, & S Izatt
(Mintek & IBC Technologies Inc, South Africa)
11:20am A case study on the operation of a Flooweg Tricanter centrifuge for
solvent-extraction crud treatment at Bwana Mkubwa, Ndola, Zambia
Angus Feather & Anthony Mukutuma (Cognis Corporation, South Africa & Bwana Mkubwa Mining, Zambia)
11:45am Assessing the performance and capacity of matte leaching using
predictive models
Frank Crundwell & Geoff Lathwood (CM Solutions &
TWP Matomo Process Plant, South Africa)
(Parallel) Session 12 - Pyrometallurgy & Hydrometallurgy (Chaired by ?)
10:30am End-of-life mode of failure of a fluidised-bed roaster and its
rebuilding
Kohler, Meyer, & Vegter (Exxaro: Zincor, South Africa)
10:55am Pyrometallurgy ?
? (?, Country)
11:20am A comparison of the effect of chemical and bio-leaching on the
kinetics of sphalerite leaching
JW van der Merwe, C Strydom, & MI Sampson
(Exxaro, University of Pretoria, & GeoBiotics LLC, South Africa)
11:45am Rapid Casting Technologies for the Base Metal Casting Industry in Africa
Didier Nyembwe (University of Johannesburg, South Africa)
12:10pm Lunch
(Parallel) Session 13 - Hydrometallurgy (Chaired by ?)
1:10pm Recovery of Copper from Skorpion PLS Solutions using EMEW Direct
Electrowinning
J Gnoinski, E Roux, I Ewart, & D Dreisinger
(Electrowinning International Inc, Country, &
University of British Columbia, Canada)
1:35pm Clarification of Process Solution with the Ishigaki Fibre Wakishimizu
- Piloting at Skorpion Zinc
H Fuls (Skorpion Zinc, Namibia)
2:00pm Skorpion Zinc: Optimisation and Innovation
J Gnoinski (Electrowinning International Inc, Country)
2:25am Water balances in hydrometallurgical refineries - a case study
highlighting the design and the operational variables
Botha, Fox, Kirsten, Pizzaro, Lathwood, & Moolman
(Impala Platinum Refineries & TWP Matomo Process Plant, South Africa)
(Parallel) Session 14 - Research, Environment, SHE (Chaired by ?)
1:10pm The minerals industry and syndicated research
Richard Beck & Peter Gaylard (AMIRA International
& University of Cape Town, South Africa)
1:35pm Can we decrease the ecological footprint of base metal production
by recycling?
Dick Groot, Chris Pistorius, & Thys Vermaak
(University of Pretoria, South Africa)
2:00pm SHE
(?, Country?)
2:25am Title?
? (?, Country)
2:50pm Tea