Resolution of NdFeB route-comparison provenance and recovery inputs

Determine the executed NdFeB plate maps, reagent concentrations, measured phases, dilution treatment, and intended separation-factor definition, and obtain the enriched-stock preparation and recovery denominator needed to calculate recovery across rounds.

Background

The NdFeB route comparison is conditional on a deposited script and assumptions about mass-proportional signals, common dilution, and the measured phase. The experiment-agent record describes a different map and oxalate concentration, while the plate phase and signal units remain unconfirmed.

These unresolved details limit interpretation of the reported normalized rare-earth-to-iron enrichment and prevent calculation of recovery across rounds. Resolving them is necessary for a definitive comparison of the hydroxide and oxalate routes.

References

For NdFeB, interpreting the route comparison requires the executed plate maps, reagent concentrations, measured phases, dilution treatment, and intended separation-factor definition. Calculating recovery across rounds additionally requires the enriched-stock preparation and recovery denominator.

— Decision-Focused Active Learning for Scale-Aware Critical-Materials Recovery  (2609.09413 - Srinivas et al., 8 Sep 2026) in Section 7, “Related work, limitations, and open questions”