analytical services division - mintek process simulation; and, ... , tank and heap bio-leaching of...

Analytical Services Division

SCHEDULE OF SERVICES

Mintek’s Analytical Services Division (ASD) is a well-established analytical chemistry laboratory that specialises

in geochemical and general analytical chemistry. We provide analytical support to clients in the mineral, metallurgical and

related industries, using state-of-the-art instrumentation for a variety of techniques.

Our highly skilled scientists and analysts are backed-up by a top-quality consulting team, all operating according to ISO standards. We have a wide

range of facilities that ensures a quality one-stop for exploration and general analytical services.

About MintekMintek is an autonomous research and development (R&D) organisation specialising in all aspects

of mineral processing, extractive metallurgy and related technology. Working closely with minerals and metal producers

locally and internationally, Mintek develops and transfers innovative, new and improved technology to industry for processing,

extracting, refining and utilising minerals and mineral products.

Mintek offers R&D expertise, service testwork, and technologies for the gold, platinum-group metals (PGM), base metals, ferro-

alloys, and industrial minerals sectors. Extensive laboratory and pilot-plant facilities are available for investigations in the

following fields:

• Analysis-characterisationoforesandothermaterials,analyticalchemistryandmineralogicaltechniques;

• Mineralprocessing-comminution,flotation,gravity,electrostatic,magnetic,anddense-mediaseparation;

• Hydrometallurgy-leaching,bacterialoxidation,adsorption(CIPandRIP),solventextraction,andelectrowinning;

• Pyrometallurgy–pre-heatingandpre-reduction,submerged-arcandDCtransferred-arcsmelting,converting,condensing,

andprocesssimulation;and,

• Otherspecialisedtechnologies-metallurgicalprocesscontrolandoptimisation,tankandheapbio-leachingofgoldand

base metals, alloy development, pollution studies, residue processing, and techno-economic studies.

Mintek’s activities range from initial investigations to complete process development and, in conjunction with engineering

partners, the design, construction, and commissioning of plants.

Contents

Quality assurance ____________________________2

sample submission, storage, and disposal ________ 2

sample preparation ___________________________3

precious metals analysis_______________________3

multi-element techniQues___________________________3

Geological and Metallurgical Materials _________________3

ICP-OES ______________________________________ 4

ICP-MS _______________________________________ 5

single element techniQues______________________6

AAS __________________________________________ 6

Wavelength-dispersive XrF_____________________7

miscellaneous methods________________________8

Sulphur and carbon _____________________________ 8

Gases ________________________________________ 8

Water analysis _________________________________ 8

Environmental analyses __________________________ 9

Coal and graphite __________________________________ 9

Halides __________________________________________ 10

Other analytes _____________________________________ 10

sarm program_____________________________________ 11

contact details_________________________Inside back cover

Quality assuranceasd has been accredited to iso 17025 (testing and calibration laboratories) since 1995. Regular internal and external audits are held to maintain and improve the effectiveness of the Quality Management System, and the laboratory participates regularly in local and international proficiency testing programmes.

A Laboratory Information Management System (LIMS) is used to track the status of samples from reception though every stage of the analytical process. Instruments are interfaced to the system to ensure accurate data transfer and archiving of results for quick retrieval. Quality controls and limits are incorporated to highlight results that need investigating.

ASD has six methods on its schedule of accreditation:

• The spectrometric analysis of chromium bearing materials with particular reference to ferrochromium slags and chromite ores (chromium-bearing materials, ferrochromium slags and chromite ores - 24/11);

• The analysis by atomic absorption spectrometry of geological materials for sodium, potassium, lithium, calcium and magnesium (geological materials - 11/20);

• The determination of sulphur in various materials using a combustion technique (various materials - 16/26 revised);

• The determination of carbon in various materials using a combustion technique (various materials - 6/37);

• Direct titrimetric method for the determination of chromium in ores (chromium ores - 24/13); and,

• The determination of gold and of total platinum, palladium, rhodium and gold (PGM+Au) in ores and concentrates by the fusion technique with lead as the collector (ores and concentrates - 78/29).

Mintek holds certifications for Quality (ISO 9001 and ISO 17025), Environment (ISO 14001), as well as Safety and Health (OHSAS 18001). The organisation is registered as a uranium testwork facility with the National Nuclear Regulator (NNR) and the Department of Minerals and Energy (DME).

sample submission, storage, and disposal• Solutions and solids must be packaged separately to avoid contamination and leakage;

• It is the submitter’s responsibility to submit a sufficient amount of sample for analysis. If insufficient sample is submitted, the analysis request must be prioritised to minimise delays;

• The submitter must ensure that the samples are in a form suitable for chemical analysis. Solid samples must be submitted pulverised, homogenised, and dry. Preparation will be undertaken at Mintek only with prior consultation with the client. Solutions must be free of all solids, or entrained organics;

• Solution samples must be submitted in liquid-tight containers, preferably in a translucent polyethylene container with a screw cap. Solid samples should be submitted in plastic or glass vials, or bags that are spill-proof; and,

• Clients must ensure that samples are correctly labelled. Labels must be firmly fixed to the container and marked with permanent ink.

The following details must accompany all samples:

• Name of the person to whom results should be sent by e-mail;

• Date of submission and number of samples;

• Elements/method required;

• Client’s order number;

• Client’s telephone and fax number with the postal and physical addresses;

• Required turnaround time, sample type, and approximate concentrations of the analyte if known; and,

• Any other information pertaining to the sample that may be useful.

Sample storage and disposal

Unless expressly agreed otherwise, clients shall, upon conclusion of the project, be responsible for collection and/or disposal of any unused sample materials and products from the testwork from Mintek. Should the client fail to do so after notice to this effect from Mintek, Mintek may at its sole discretion return or dispose of any unused sample materials and testwork products at the client’s risk and expense.

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sample preparationgood sample preparation practice is essential for obtaining meaningful and reliable data. this involves technologically advanced equipment to process different sample types. asd’s sample preparation section is a specialised and centralised sample preparation, dissolution area for metallurgical and geological samples.

To ensure that your samples are prepared correctly we recommend that you discuss your requirements with our consultant

for the best possible option for your sample type before starting any analysis.

Sample Preparation Crushing, pulverising of geochemical samples 15 g min.1.5 kg max.

Particle size analysis Sympatech Saturn Digisizer 100 g max.

SG/RD Specific gravity/relative density 100 g max

precious metals analysisthis classical fire assay technique is still preferred for precious metals analysis, as it allows high-precision analysis of low concentrations of precious elements in a variety of sample types. excellent facilities are available for lead collection (mainly for au, pt, pd, and rh, either as individual elements or as a gravimetric finish), and for nickel sulphide collection (au, pt, pd, rh, ru, ir and os). a gravimetric finish is generally used, but analysis for individual precious metals requires an icp-oes or icp-ms finish, as per client preference.

no. description analyte list mass/vol

determination limit

FA1 Standard fire assay with high-temperature cupellation followed by gravimetric finish Total PGM+Au

Depe

nds

on s

ampl

e gr

ade

0.28 g/t

FA2Standard fire assay with no high-temperature cupellation, followed by the dissolution of the silver prill in aqua-regia and analysis using ICP-OES

Pt, Pd, Au (3E) 0.1 ppm

FA3Standard fire assay with no high-temperature cupellation, followed by pressure dissolution of the prills using sealed glass tubes and analysis using ICP-OES

Pt, Pd, Rh, Au (4E) 0.1 ppm

FA4Standard fire assay with nickel sulphide collector, followed by crushing, leaching and dissolution of the nickel sulphide button in aqua-regia and analysis using ICP-OES

Pt, Pd, Rh, Au, Ru, Ir (6E) 0.1 ppm

FA5Standard fire assay with low-temperature cupellation of the silver prill, parting and annealing, followed by gravimetric finish Total Au 0.08 g/t

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multi-element techniQues - Geological and Metallurgical Materialsicp-oesicp-optical emission spectrometry (icp-oes) is a multi-element analytical technique that can analyse more than 10 elements simultaneously. icp-oes instruments have a long dynamic range, meaning that they can be used to analyse high concentrations without the need for further intermediate dilutions.

ASD has six ICP-OES instruments, including three of the latest models, which are fully automated for improved turnaround time.

no. description analyte list minimum mass/vol. determination limit

ICP1 Ores and Slags. Fusion followed by acid dissolution in HCl/HNO3

Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb 1 g 0.05%

ICP2 Beach sands and Ti-bearing minerals, Fusion in Pt/Au crucibles followed by acid dissolution

Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Zr 1 g Depends on matrix and

analyte

ICP3 Impurities in high-purity metals eg. impurities in pig iron

Per 5 elements, eg. Ca, Ti, V, Cr, Mn. 1 g Depends on matrix and

analyte

ICP4 Ferrochromium metal. Acid digestion Mg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni 1 g

Mg, Al, Ca 0.05%

Ti, V, Mn, Co, Ni 0.01%

Si 0.2%Cr 1%Fe 0.5%

ICP5 Resins or activated carbon. Acid digestion Na, Mg, Al, Si, Ca, Fe, Co, Ni, Cu, Zn, Ag, Au, Pb 2 g 50 ppm except for Si

(100 ppm)

ICP6 Andalusite. Fusion followed by acid dissolution Al2O3, Fe2O3, SiO2. 1 gAl2O3 15%SiO2 0.5%

Fe2O3 0.1%

ICP7 Ferrosilicon metal. Acid digestion Mg, Al, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo, Pb 1 g 20 ppm

ICP8 PGM concentrates and matte samples, Fusion followed by acid dissolution

Si, Cr, Fe, Cu, Ru, Rh, Pd, Ag, Zr, Pt, Au, Ni, Co 1 g

Si, Cr, Fe, Cu, Rh, Ag 0.05%

Ru 0.06%Pt and Pd 0.2%

Au 0.5 %Zr 0.1%

ICP9 Tin and tungsten ores. Fusion followed by acid dissolution

Mg, Al, Si, Ca, Mn, Fe, Zn, Sn, W 1 g

Mg, Ca, Fe, Mn, Zn 0.05%

Sn 0.02%W 0.05%Al 0.07%Si 0.05%

ICP10 Tantalite samples. Fusion followed by acid dissolution. Sn, Nb, Ta, W 1 g

Si, Fe, Ca, Mn, Sn, Ti

0.05%

Ta, W 0.5%

Al 0.1%

Nb 0.2%

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ICP 15 Cr2O3 1 g 0.70%

ICP16 Acid digestion Co, Ni, Fe, Cu 1 g <10 ppm

ICP19 Ores and slags. Fusion followed by acid dissolution MgO, Al2O3, SiO2, CaO, TiO2, Cr2O3, MnO, FeO 1 g

MgO 0.1%

Al2O3, SiO2, Cr2O3

0.2%

CaO 0.3%TiO2 0.04%MnO 0.03%FeO 0.06%

ICP21 Determination of low-concentration base metals in solids by acid digestion

Mg, Cr, Si, Fe, Ca, Ti, Mn, Cu, V, Ni, Co, Al 2 g 0.1 ppm

ICP11 Water samples after required dilutionMg, Al, Si, Ca, Ti, V, Cr, Mn,

Fe, Co, Ni, Cu, Zn, Pb, Li, Be, Na, K, Ag, Cd, Sn

5 ml

Ti, V, Cr, Mn, Fe, Cu, Li

0.02 ppm

Co, Zn, Ag, Cd, Be 0.05 ppm

Mg, Si, Ni, Pb, Sn 0.1 ppm

Al, Ca 0.2 ppm

Na, K 0.5 ppm

ICP12 PGM solutions after required dilution Mg, Al, Cr, Mn, Fe, Co, Ni, Cu, Pb, Ru, Rh, Pd, Os, Ir, Pt, Au 5 ml

2 ppm except for

Ru 6 ppmRh 4 ppm

ICP13 Multi-element solutions after required dilutionMg, Al, Si, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb, Mo,

SO4, As

5ml2 ppm

except forSO4 15 ppm

ICP22 Low-concentration base metals in water samplesMg, Cr, Si, Fe, Ca, Ti, Mn, Cu, V, Ni, Co, Al, Zn, Pb, Li, Be,

Ag, Cd, Sn10ml 0.02 ppm

ICP23 Low-concentration PGMs in solutions Au, Pt, Pd, Rh, Ru, Ir, Os 10 ml 0.1 ppm

ICP24 Low-concentration base metals in solutionsMg, Cr, Si, Fe, Ca, Ti, Mn, Cu, V, Ni, Co, Al, Zn, Pb, Li, Be, Na, K,

Ag, Cd, Mo, SO4, As10ml 0.02 ppm

icp-msicp-mass spectrometery (icp-ms) is a trace technique that analyses in the low parts-per-billion (ppb) range. icp-ms is especially suited for environmental and water analyses, impurities in high-purity end-products of two- to five- nines quality, and soils or ores for trace and ultra-trace elements.

Very low detection limits of 0.01 ppm in solutions and 0.1ppm in solids can be attained. Quick semi-quantitative scans can be obtained for solid and solution samples containing trace levels of dissolved solids. The section has three ICP-MS instruments.

no. description analyte list determination limit

MS2 Fusion All elements, excluding Na, C, S, P, Si, K, Ca and gases. Radioactive material - only U and Th 0.1 ppm

MS3 Semi-quantitative scan All elements, excluding Na, C, S, P, Si, K, Ca and gases. Radioactive material - only U and Th 0.1 ppm

MS4 Special dissolutions B or Hg or Os 0.1 ppm

MS5 Filter analysis As for MS2, excluding volatiles 0.1 ppm

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MS6 Quantitative Analysis after appropriate dilution

All elements, excluding Na, C, S, P, Si, K, Ca and gases. Radioactive material - only U and Th 0.01 ppm

MS7 Semi-quantitative scan All elements, excluding Na, C, S, P, Si, K, Ca and gases. Radioactive material - only U and Th 0.01 ppm

single element techniQuesaasatomic absorption spectroscopy (aas) is a single-element technique, used as an alternative technique for troublesome elements like na and K in complicated matrices. it is also used when icp-oes is unable to do the analysis for a particular element, owing to interference. For some elements, aas has lower detection limits than icp-oes.

ASD has three AA instruments, one of which is a Graphite Furnace instrument that allows detection limits down to 0.008 ppm

for Au in solutions.


AA1 Acid digestionNa, K, Mg, Ca, Li 2 ppm

Ca 10 ppm

AA2 Acid digestionAg, As, Au, Cd, Co, Cu, Fe, Mn, Mo,

Ni, Pb, Zn

Ag, Cu 5 ppm

Ni, Pb, Zn 15 ppm

Cd, Co, Fe, Mn 25 ppm

Mo 50 ppm

As 80 ppm

Au 100 ppm

AA3 Fusion

Al 150 ppm

Ba, Sb, Sr 50 ppm

Bi 10 ppm

Cr 200 ppm

Sn 1000 ppm

V 70 ppm

AA4 Sequential Cu analysis Oxide, cyanide and residual 1 g 20 ppm

AA5 After appropriate dilution

Na, K, Ag 0.1 ppm

Mg, Li, Cu 0.2 ppm

Ca, Cd, Pb, Sr, Zn 0.5 ppm

Co, Cr, Mn 1.0 ppm

Mo, Al, As, Sn, Bi 5 ppm

Ba, Fe, Ni, Sb 2 ppm

V 2.5 ppm

Au on flame AA 0.6 ppm

Au in cyanide solutions by ETA 0.008 ppm

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Wavelength-dispersive XrFX-ray Fluorescence (XrF) is well known for its accuracy and reliability. this technique is universally accepted as industry’s standard and preferred technique for solid analysis. sample types analysed by XrF range from geological to metallurgical process materials for the determination of major, minor and minor to trace elements.

Environmental analysis of filters by a quick semi-quantitative scan has been particularly useful in determining volatile elements associated with acid digestion.

Samples for analysis are prepared as either powder briquettes or fused beads, depending on matrix and the client’s request.

The section has 3 XRF instruments:

• An energy dispersive X-ray instrument (EDX) – For quick semi-quantitative scans of solids and solutions;

• A wavelength dispersive instrument (WDX) – Ideal for U analysis and R&D work. Instrument also has mapping capability; and,

• A multi-channel instrument (MXF) – Has the capability of 36 elements analysed simultaneously with the added option of a scanning channel from Ti to U. The instrument has a 100 autosampler. Especially, purchased to provide quick turn around times.

Methods are also developed to clients’ specifications, provided the request is within acceptable limits.


XRF1 Andalusite samples on a pressed pellet Al2O3, Fe2O3, SiO2 8 g

Al2O3 190 ppm

SiO2 35 ppm

Fe2O3 25 ppm

XRF2 Mn ore samples on a pressed pellet 8 g

Mg, Al, Si, 100 ppm

Ca, Mn 20 ppm

Fe 15 ppm

XRF3 Merensky/UG2 ores on a pressed pellet 8 g

Cu & Ni 1ppm

Mg 100 ppm

Cr 15ppm

XRF4 Semi-quantitative scan on pressed pellet (under vacuum)

All elements excluding: Those with Z<13 Sc and PGMs Rare Earth Elements except La, Ce, Hf Radioactive elements except U, Th

8 g N/A

XRF5 Qualitative/semi-quantitative powder scan

All elements excluding: Those with Z<13 Sc and PGMs Rare Earth Elements except La, Ce, Hf Radioactive elements except U, Th

5 g N/A

XRF6 Alloy scan to 100% totals Depending on the alloy Smooth surface disc <32 mm diameter N/A

XRF7 Apatite P, Fe, Ca, Al 8 g

XRF8 Fe ore Fe, Si, Al, P 8 g

7

miscellaneous methodsmany types of classical analysis are done by volumetric, gravimetric and spectrophotometric determination. these techniques are useful for high-precision work, as well as for some difficult analyses and in particular speciation of elements.

sulphur and carbon

description method analyte list minimum mass/vol.

determination limit

Total S Combustion (LECO) 0.5-1.0 g 0.01 ppm

Elemental S Gravimetric, after extraction 0.5-1.0 g 0.2 ppm

Sulphate S Gravimetric, after extraction 0.5-1.0 g 0.2 ppm

Sulphide S Combustion, after SO4 removal 0.5-1.0 g 0.1 ppm

SO4 or total S Gravimetric 10 g

Sulphide in solution Iodometric titration 10 g

Total C Combustion 0.5-1.0 g 0.01 ppm

Organic C Combustion after extraction 0.5-1.0 g 0.1 ppm

Carbonate C Total C - Organic C 0.5-1.0 g 0.5 ppm

gases


determination limit

Oxygen* Combustion 20 ppm**

Nitrogen* Combustion 0.5-1.0 g 20 ppm**

* Method calibrated for steel **Depends on matrix

Water analysis


determination limit

pH pH electrode n/a n/a

Conductivity Electrode n/a n/a

TDS (Evaporation) Gravimetric n/a n/a

TSS Gravimetric n/a n/a

Total hardness Titration n/a n/a

Alkalinity Titration n/a n/a

Acidity Titration n/a n/a

Dissolved oxygen Electrode n/a n/a

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environmental analyses

description method analyte listminimum mass/vol.

determination limit

TCLP Leach procedure according to EPA 105 g n/a

Acid rain Leach procedure according to EPA 105 g n/a

Acid rain

By ICP-MS after acid rain leach

Li, Be, B, Ti, V, Cr, Mn, Co, Ni,

Cu, Zn, As, Se, Sr, Zr, Mo, Ag,

Cd, Sn, Sb, Ba, Hg,Pb, Bi

n/a n/a

By ICP-MSOES after acid rain leach Na, Mg, Al, Si, P, S, K, Ca, Fe n/a n/a

TCLP

By ICP-MS after acid rain leach

Li, Be, B, Ti, V, Cr, Mn, Co, Ni,

Cu, Zn, As, Se, Sr, Zr, Mo, Ag,

Cd, Sn, Sb, Ba, Hg,Pb, Bi

n/a n/a

By ICP- MSOES after acid rain

leachNa, Mg, Al, Si, P, S, K, Ca, Fe n/a n/a

Metallics leached from

solid samples

By instrumental technique – e.g.

ICP-OESFe, Al, or by request 0.5 – 1.0 g

coal and graphite


determination limit

LOILoss on ignition at 950ºC or (other

temperatures)2 g

Moisture Moisture at 105-110ºC 2 g

Ash Ashing at 950ºC 2 g

Proximate analysis of coalMoisture, ash, volatiles and

fixed carbon10 g

GraphiteMoisture, ash, volatiles and

fixed carbon10 g

9

halides


determination limit

Cl in solidsGravimetric, potentiometric or

turbimetric (depends on level)

Fusion5 g

0.03%

Acid dissolution 60 ppm

Cl in solution PotentiometricFusion

5gAcid dissolution

F in solids Ion-selective electrodeFusion

5 g0.1%

Acid dissolution 200 ppm

F in solutions Ion-selective electrode 20 g 10 ppm

other analytes

description method analyte listminimum mass/vol

determination limit

P (or P2O5) in solids Colourimetric after fusion 2 g 10 ppm

P (or PO4) in solutions Colourimetric 20 g

NH4 in solutions Colourimetric 20 g

NH4 Distillation/back-titration 5 g

Cr6+ in solids Matrix-dependent 5 g

Cr6+ in solution Colourimetric 5 g 0.02 ppm

Fe2+ in chromites Titration after fusion 10 g

Fe2+ in solids Titration after fusion 10 g

Fe2+ in solutions Titration 10 g 0.1 g/l

Ti3+ Titration (total Fe must be subtracted) 20 g

SiO2 Gravimetric 5 g

CO2/CO3 Distillation/gravimetric 5 g

** By agreement only Other analyses are available on request and after discussion/consultation.

10

sarm programmintek is a producer of metallurgical and geological certified reference materials (the south african reference materials or “sarms” series). these materials are made according to iso guides 30 to 35 which describe the best practices for manufacturing and certification. there are over 70 reference materials available (ores, heavy minerals, soils, sediments, coal and rocks), and these are continually being added to in an ongoing programme.

type description sarm number unit of packing

rocks and minerals

Granite SARM 1 NIM-G 100 g

Syenite SARM 2 NIM-S 100 g

Lujavrite SARM 3 NIM-L 100 g

Norite SARM 4 NIM-N 100 g

Pyroxenite SARM 5 NIM-P 100 g

Dunite SARM 6 NIM-D 100 g

Kimberlite SARM 39 100 g

Carbonatite SARM 40 100 g

Carbonaceous shale SARM 41 100 g

Soil SARM 42 100 g

Magnesite SARM 43 100 g

Sillimanite schist SARM 44 100 g

Kinzingite SARM 45 100 g

Stream sediment SARM 46 100 g

Serpentinite SARM 47 100 g

Fluorspar granite SARM 48 100 g

Quartz SARM 49 100 g

Dolerite SARM 50 100 g



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heavy minerals

Titanium slag (RBM) SARM 57 100 g

Titanium slag (AAC) SARM 58 100 g

Ilmenite (RBM) SARM 59 100 g

Rutile (RBM) SARM 61 100 g

Zircon (RBM) SARM 62 100 g

Ferro-alloys

Ferrosilicon SARM 33 100 g

Ferrochromium SARM 74 100 g

Ferrochromium slag SARM 77 100 g

Precious metals

Gold tailings SARM 54 500 g, 2 kg

Gold calcine SARM 56 500 g

PGM ore UG2 low SARM 70 3 kg

PGM ore UG2 high SARM 72 3 kg

PGM ore Merensky SARM 73 3 kg

PGM ore Sheba’s Ridge SARM 75 3 kg

PGM ore Merensky SARM 76 3 kg

coal

Coal (Witbank) SARM 18 120 g

Coal (OFS) SARM 19 120 g

Coal (Sasolburg) SARM 20 120 g

uranium

Uranium, acid leach residue SARM 21 UREM 1 200 g

Uranium, pyrite concentrate SARM 23 UREM 3 200 g

Uranium, slimes dam material SARM 24 UREM 4 200 g



Uranium, acid leach residue SARM 27 UREM 7 200 g

Uranium, Witwatersrand ore SARM 29 UREM 9 200 g

ores and semi-processed materials

Phosphate rock SARM 32 100 g

Andalusite SARM 34 100 g

Vanadium pentoxide SARM 38 100 g

Fluorspar (Zeerust) SARM 15 100 g

Manganese ore (Wessels) SARM 16 100 g

Manganese ore (Mamatwan) SARM 17 100 g

Pot shard (archaeological ceramic) SARM 69 100 g

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Contact details

the ManagerAnalytical Services Division, Mintek

Phone: +27 11 709 4053Fax: +27 11 792 6650

the Customer Services ConsultantPhone: +27 11 709 4138

the Sales and Marketing ConsultantPhone: +27 11 709 4479

Mintek

200MalibongweDrive,Randburg,SouthAfrica

PrivateBagX3015,Randburg,2125SouthAfrica

Phone: +27 11 709 4111

Fax: +27 11 793 2413

e-mail: [email protected]

analytical services division - mintek process simulation; and, ... , tank and heap bio-leaching of...

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