01
Grinding and classification
Circuit diagnosis, mass balancing, simulation and optimization; circulating load, particle size, density and capacity.
Specialist mineral processing consultancy
We process data. We unlock mineral value.
Technical solutions to improve recovery, capacity, stability and operating efficiency through selective concentration, metallurgical testing and process engineering.
Chile and BrazilLaboratory, pilot plant and industryGreenfield and brownfield
Independent approachDecisions grounded in measured data.
Multidisciplinary experienceProcesses, operations, projects and testing.
Practical applicationFrom laboratory work to industrial scale-up.
Techno-economic impactMore value through justified investment.
R2 Mineral Processing Consultants
Practical experience for high-impact metallurgical decisions.
A Brazilian consultancy formed by mineral processing specialists, focused on operational excellence, continuous improvement and metallurgical resource valorization.
Our work combines quantitative analysis, modelling, testing and real operating experience to reduce costs, stabilize plants and maximize recovery and return.
Capabilities
Services to study, design and improve mineral processes.
We support projects from diagnosis through plant validation, focusing on technically robust and economically viable solutions.
02
Mineral concentration
Assessment and improvement of magnetic separation, gravity concentration, flotation, preconcentration and cleaning stages.
03
Metallurgical testing
Design, support and evaluation of laboratory, pilot-plant and industrial test campaigns.
04
Engineering and projects
Greenfield and brownfield studies, technical feasibility, conceptual engineering, scale-up and commissioning.
05
Balances and simulation
Metallurgical balances, vectors, process modelling and quantitative comparison of alternatives.
06
Operational support
Technical audits, troubleshooting, training, standardization and specialist site support.
ROM
PRECONCENTRATION
SELECTIVE GRINDING
CONCENTRATION
CLEANING
Coarse rejects
Granular gangue
Concentrate
Our differentiator
Selective concentration: remove non-value material early.
Selective routes use differences in density, magnetism, hardness and floatability to reject gangue at earlier stages. Downstream operations then process a richer, lower-mass stream.
✓More valuable mineral processed using the available asset base.
✓Less overgrinding and less unnecessary load in fine-processing stages.
✓Improved particle-size control, liberation and selectivity.
✓Potential reductions in water, energy, wear and operating costs.
How we work
From an operating problem to a demonstrated solution.
Each project advances through measurement, stability, balancing and validation, avoiding premature or insufficiently justified investment.
Diagnosis
Review of data, mineralogy, operation, capacity, constraints and opportunities.
Testing and modelling
Hypotheses, balances, simulations, metallurgical campaigns and success criteria.
Validation
Techno-economic comparison, risk, sensitivity and selection of the recommended alternative.
Implementation
Scale-up, site support, commissioning, KPI control and continuous improvement.
Applied experience
Connecting testing, operations and industrial scale-up.
R2 MPC experience covers complete process routes and the interaction between ore characteristics, equipment, operational control and metallurgical performance.
Processes and operations
Crushing, grinding, classification, leaching, flotation, magnetic and gravity concentration, thickening and filtration.
Laboratory and pilot plant
Test preparation, execution, stabilization and evaluation; balances, sampling, constraint analysis and incremental improvement.
Industrial scale-up
Conceptual engineering, auxiliary equipment assessment, operating risk, maintenance, piping and commissioning preparation.
Minerals and resources
Core experience in iron ore and gold, with studies and specialist support in copper, nickel, cobalt and rare earths.
Applications
Minerals, circuits and challenges where we create value.
Consultants
Technical experience with an operations and project perspective.
R2 MPC combines decades of experience in plants, projects, metallurgical testing, innovation and continuous improvement.
JR
Technical process specialist
Jose Resende
More than 15 years in gold plants and nearly 20 years developing mineral processing projects. Specialist in metallurgical testing, total quality, PDCA, 5S, MASP, routine management and process standardization.
RR
Process and innovation consultant
Rafael Ramirez
Mining Civil Engineer, Metallurgical Engineer and MSc in Materials Engineering. Experience in mining innovation, lateritic nickel and selective concentration of magnetic iron ores.
Contact
Let’s discuss your operation’s challenge.
A preliminary assessment helps organize available information, define hypotheses and select the study that will truly create value.
Request an assessmentTechnical contactrafaelramirez@r2mpc.comTechnical contactjoseresende@r2mpc.com
Operating baseBelo Horizonte, Minas Gerais, Brazil