Comminution
Sizing
Density separation
Magnetic separation
Flotation
Sampling
Mineral characterization
Chemical analysis
Ore Dressing- Beneficiation Services & Know how at Eramet Research
Services for each of your project phases: LABORATORY – DESIGN – PILOT – INDUSTRIALIZATION
We provide high quality, innovative solutions
40 years of experience in extractive metallurgy of non-ferrous metals
For all steps of processing:
- Conceptualization, including documentation - Numerical modeling and simulation - Laboratory and pilot testing: Ore beneficiation,
Hydrometallurgy, Pyrometallurgy - Industrial plant start-up assistance - Continuous quality control at all steps using
physico-chemical material characterization
A tight collaboration with ERAMET Engineering guaranties the successful industrialization of your project
For further information on ore beneficiation facilities and services, please contact us at :
[email protected] www.eramet.com/R&D
Equipment Brand Feed size Output size Throughput
Teethed-roll crusher
Mecaroanne < 200 mm 0-20 mm 0-2 t/h
Jaw crusher Dragon < 100 mm 0-10 mm 0-1 t/h
Retsch < 10 mm 0-2 mm 40-100 kg/h
Cone crusher Siebtechnick < 25 mm 0-2 mm 40-100 kg/h
Ball mill Glen Creston < 5 mm < 100 µm Volumes : 10L,
27L
Rod mill Minemet < 5 mm < 200 µm Volume : 8L
Vibratory mill
Retsch <1 mm <10 µm 100 g
Attrition cells Minemet < 10 mm 0-10 mm 1 kg
SMD Metso < 10 mm 0-10 mm 1 kg
200 mm
1 mm
Expertise: Industrial attrition of lateritic ores (Ni, Mn, REE, Nb) Crushing of sticky lateritic ores with the Teethed-Roll Crusher
Co
mm
inu
tion
Comminution
Crushing and grinding consume the most energy in mining installations. Therefore developing an energy-saving process is one of the key-features for profitable projects.
Teethed-roll crusher Vibratory mill Ball mill
Equipment Brand Particle size Cut size Throughput
Scrubber + double
trommel MPM 0-80 mm
1mm / 4mm / 10mm…
<2 t/h
Sieving
Siebtechnik 0-200 mm 10 à 90 mm ≈ 100 kg/h
Siebtechnik 2 Retsch
2 Chauvin 0-80 mm
32 µm to 40 mm
≈ 2 kg/h
Chauvin 0-2 mm 100 µm to 1
mm < 100 kg/h
Screens Somatrap 20-100 mm 10 mm <1 t/h
Chauvin 0-80 mm 40 mm <2 t/h
Dewatering screen
Chauvin 0-2 mm 315 µm <1 t/h
Cyclones KHG <500 µm <100 µm <8 m3/h
Sizing
Expertise: Scrubbing and particle classification of Mn-laterite ore during
pilot operations Particle size distributions of ores and intermediate metallurgical
products: Lateritic ores (Ni, Mn, REE, Nb, Ta), heavy mineral sands (Ti, Zr), slags, salts
Chauvin sieving Scrubber and trommel
Efficiency in grain size separation using vibrational sieving and screening requires a proper evaluation of operating parameters. e.g. attractive forces, media…
Equipment Brand Particle size Wet / Dry Throughput
Shaking table
Holman-Wilfley
<1 mm Wet <70 kg/h
Pneumatic table
Tecmachine >100 µm Dry 500 kg/h
Jig
Denver 0.5-10 mm Wet 3 kg batches
Tenova - Batac
0.5-10 mm Wet 500 kg/h
Spiral Mineral Deposits
0.03-2 mm Wet 1-4 t/h
Dense media
separation
Eramet Research
lab >300 µm
Organic medium
<1 kg/h
Density separation
Expertise: Laboratory and pilot tests: elimination of quartz from lateritic ores
using a shaking table and spirals Continuous beneficiation pilot by jigging of Mn-lateritic ore Industrial separation of heavy mineral sands (Ti, Zr) by spirals Slag/metal separation using a pneumatic table
Jig Shaking tables Heavy sands dredging
Efficient gravity separation requires development of particle size and specific density indicators in order to define cost efficient operating conditions and feed preparation. Multi
gravity separation techniques can enrich the concentrates by up to 10%.
Equipment Scale Brand Feed size Wet / Dry Throughput
Low intensity separator
Laboratory Eriez >100 µm Wet 1-10 m3/h
Pilot FCB 100 µm – 100 mm Dry 0.1-1 t/h
High intensity separator
Laboratory Downer Mining
40 µm – 5 mm Dry <100 kg/h
Magnetic separation
Expertise: High intensity magnetic beneficiation of Mn-rich sands Elimination of Fe oxides of polymetallic laterite ore Numerical modeling of the particle behavior in a magnetic field
Dry high intensity magnetic separator
A powerful tool to extract ferrous contaminants in polymetallic laterite ores, or concentrate magnetic particles in mineral sands. Careful adjustment of process parameters including particle magnetic susceptibility, magnetic field, effective medium viscosity and particle
velocity is required.
Wet low intensity magnetic separator
Equipment Brand Particle size Volume Throughput
Laboratory cells
Outotec 0.1-1 mm
2-4-8-16 L Batch <5 kg
Outotec 1.5-2-3.5 L Batch <1kg
2 Minemet
40 µm – 5 mm
0.5-0.75-1 L Batch 300 g
Pilot cells
4 Minemet H180
3 * 5 L 10-60 kg/h
4 Minemet H300
3*25 L 50-300 kg/h
4 Minemet H250
2*20 L 15-150 kg/h
4 Minemet H300
2*25 L 20-200 kg/h
Froth flotation
Expertise: More than 30 years-experience in flotation of sulphide ores, salts,
barite, coal… Flotation of metal-bearing phases in laterite ores (REE, Nb, Ta) and
black shales (Mn)
Flotation pilot Lab cell Minemet Lab cell Outotec
It uses hydrophobic and hydrophilic properties for the separation of valuable minerals and tailings. Process efficiency depends on the configuration of the flotation circuit, the
equipment design, and the physical and chemical nature of the treated pulp.
Equipment Brand Feed Output Capacity
Big-Bag divider Laarmann 1 t (1 Big-Bag) 8 futs 200 L 1 t/h
Sampling tower Laarmann 200 kg (1 fut)
<80 mm sample
<500 g & <2 mm 500 kg/h
Riffle splitter 4
Metaleurop <10 mm à <100 mm
2 samples <500 kg/h
Rotary splitter Klupp <5 mm 8 samples <50 kg/h
Pulp divider 2 Minemet Pulps 12 samples <8 m3/h
Sampling
Expertise: Standardized sampling procedures applied to all pilot
operations Design of automated sampling tools
Echan
tillon
nage
Rotary splitter Sampling tower
Precise and accurate sampling is the base of a successful project. Compliance with sampling theory and application of testing standards ensures the
representativity and validity of analyses.
Rotary splitter Big-bag divider
Equipment Type Model Tools Interets
Optical microscopy
Binocular Wild
Heerbrugg Numerical
camera Macroscopic observations
Optical microscope
LEICA DM2500P
Numerical camera
Phases definition + textural information
Metallographic microscope
Olympus PMG3
Metallic microstructures
Electronic microscopy
Electronic microprobe
CAMECA SX100
4 WDS, 1 EDS Precise phases
chemistry
SEM-FEG Zeiss Supra
55
2 EDS, EBSD, Esprit,
Multiscan
Morphological and textural information
Environnemental SEM-FEG
FEI Quanta 650F
2 EDS, Esprit, Qemscan®
Phases quantification + textural information
Laser particle sizer
Wet CILAS 1064L Grain size distribution
DRX On powder PANanalytical X’Pert PRO
Domed sample holder
Phases identification
Mineral characterization
Expertise: Phosphorus mapping in lateritic ores Low intensity magnetic separation followed by mineral
characterization for process validation Geometallurgy of Ni-lateritic ores
Grain size and density map
Mineral characterization at each process step allows an optimization of laboratory, pilot and industrial operations. Continous quality control ensures a
certified customer product.
Qemscan mineralogical mapping
Technology Type Model Applications
X-ray fluorescence spectrometry
Energy dispersion
PANalytical AXIOS
Quantitative analysis of beads and semi-quantitative analysis (OMNIAN)
Plasma spectrometry
ICP-MS Analytik Jena Ultra-traces : PGM, REE, U, Th, etc.
ICP-OES Agilent Vista
Pro, 720 & 730 Trace elements and minors
MP-AES Agilent 4200 Na, K, major elements
Elemental analyzer
C-S HORIBA EMIA
320 V C-S on ores, metals and slags
Atomic adsorption
spectrometry
GFAAS Agilent AA220Z Trace elements (Cd, As, & Pb)
Mercury analyzer
CETAC M6100 Mercury in trace
Mineralizers
Fluxer Claisse TheOx Automatized borate mergers, 6 posts
Microwave Milestone UltraWave
Under pressure acid mineralizations, 5 posts
Chemical analyses
Expertise: Chemical control of a jigging pilot on Mn-lateritic Quantification of Fe2+ Fe3+ in lateritic ores REE analyses during a polymetallic lateritic ore beneficiation pilot
Chemical analyses of ores and processed products at each step give a measure of the concentration process efficiency and product quality.