Mineral Processing and Metallurgical Services

We provide tailored solutions to help you efficiently separate valuable minerals from ore.

OUR ROLE IN MINERAL PROCESSING

Mineral processing is fundamental to mining and commodity production. At Alfred H Knight, we apply our mineralogical and metallurgical expertise to provide end-to-end support, from exploration and feasibility studies to plant design, ore processing, and trade.

Our services help clients optimise plant performance, refine extraction processes, and enhance operational efficiency.

EXPERTS YOU CAN TRUST

For over 140 years, clients have trusted Alfred H Knight to deliver accurate and reliable profiles of their metals and minerals. During this time, we have expanded our knowledge and capabilities to help clients determine the physical and chemical behaviour of minerals and compounds.

How we can help

Our expert team can help you determine the physical and chemical behaviour of your minerals and compounds:

Mineralogical Analysis:

TIMA and QEMSCAN (PMA, BMA, TMS)

X-ray Diffraction (XRD)

X-ray Fluorescence (XRF)

Traditional Optical Microscopy (Petrocalcography)

Our metallurgists and laboratory technicians can provide the following from dedicated laboratories and pilot plants:

Comminution Tests:

JK Drop Weight and SMC

Bond Crushing Work Index (LEIT)

Bond Abrasion (Ai)

SAG Grindability Test (TMS)

Bond Rod Work Index (RWi)

Bond Ball Work Index (BWi)

Point load test (PLT)

Grindmill

Geopyörä

Laboratory Tests:

Flotation Collective and Selective, Locked Cycle Testing

Gravity Separation: Falcon, Jigs, Spirals and Shaking Tables

Magnetic Separation: DTT

Hydrometallurgy: Stirred reactors, bottle, column leaching

Gold extraction: Gravity recoverable gold, diagnostic leaching, CIP/CIL testing, heap leach amenability, carbon/resin adsorption and loading kinetics, detoxification

Solid-liquid Separation: Sedimentation, Rheology, and Filtration

Chemical Analysis

Pilot Tests:

SAG Grinding

Conventional Grinding

Conventional and Column Flotation (100 to 300 kg/h)

Jameson Cell

Gravity Separation

Magnetic Separation: SLon, WHIMS, WLIMS

Thickening and Filtration

Tails Transport by Pumping Loop and Tails Deposition

Column Leaching up to 10 m High Technified with Temperature

We utilise a wealth of knowledge and experience in mineral processing and metallurgy to provide the following support services:

Flowsheet Development

Process Diagnosis and Optimisation

Technical, Process and Metallurgical Mining Operation Training

Operation of Metallurgical Laboratories, Pilot Plants, and Samplers

Operational and Metallurgical Control

Comprehensive Sampling Campaigns

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