Comminution

Sizing

Density separation

Magnetic separation

Flotation

Sampling

Mineral characterization

Chemical analysis

Ore Beneficiation 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 :

eramet.research@erametgroup.com 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.