11 Aug 2026 · Process notes
Nickel-cobalt separation: where P507 and DY272 sit in the circuit
The separation reagent is chosen together with the impurity-removal stage ahead of it, because the two decide how clean the cobalt strip will be.
Points to check first
- 01Impurity removal ahead of the split defines how much scrub the split stage needs.
- 02Phosphoric ester and phosphinic acid reagents load in different acidity windows.
- 03The cobalt-to-nickel ratio in the strip liquor is a stage decision, not a reagent decision.
The full note for this subject is issued with a technical data sheet on request, together with the recommended model line for the feed.
