Critical Minerals
Minerals processing and extractive metallurgy: comminution, upgrading, hydrometallurgy, and pyrometallurgy, applied to hard rock, tailings and residue reprocessing, concentrate beneficiation, and battery material feeds.

The orebody is never fully known, and the impurity suite decides what is viable. A conventional study locks its assumptions early, returns one answer slowly, and must be reworked each time the picture changes.
Roebling builds the option space instead, and holds it on one basis from concept through feasibility. First-cut economics arrive in days, not months. The model stays live as additional test work data is introduced, allowing holistic refinement of the flowsheet.

Kimberly gordon
Critical minerals team lead
“Building the critical minerals supply chain is a massive, capital-intensive engineering challenge in which every project must prove its economic resilience early on. It's a game of small margins at massive scale—where a minor misstep in process flow design or supply chain planning compounds into millions down the line. I love helping teams de-risk the hard stuff early, so the economics actually hold up.”
Previously


A new basis for study work
Every credible feed, flowsheet, process condition, and site option is assessed in parallel in the concept phase, so the test-work budget is committed only to what survives screening.
Grade and recovery assumptions, impurity elements, and processing configuration are held within a single framework, so any change moves the mass balance, equipment sizing, and capital together.
Documentation prepared to support your Qualified Person's technical report, never to replace it.
One Partner, from Concept to Feasibility
Typical deliverables
Scoped to the decision at hand. Any of:
Technical definition
Process design criteria
Flowsheet configuration
BFDs
Mass and energy balances
Stream tables
PFDs
Recovery and reagent consumption schedules
Equipment list and general arrangement
Cost and economics
Capital cost estimate classed to the stage of study
Operating cost build-up
NPV, IRR, and payback with sensitivities and Monte Carlo
$/tonne across price and credit-metal scenarios
Trade-off and site comparison cases
Project schedule
What customers say about Roebling
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