Higher WO3 rougher recovery under recovery-priority conditions
Desensitized Case / Scheelite
Rougher verification on a low-grade scheelite plant pulp
Using plant pulp and comparable rougher conditions, HB-1/HB-2 single-reagent and blended schemes were compared across multiple tests to evaluate WO3 recovery, enrichment ratio and collector dosage window.
Trial Background
Judging plant adaptability through repeated comparison, not one-point optimization
The verification focused on low-grade scheelite roughing. With plant pulp and comparable depressant conditions, repeated tests across different blends and dosages showed that HB-1/HB-2 can provide a clear industrial adjustment window between higher recovery and controlled enrichment.
About 85-88% recovery with high enrichment in the lower dosage range
Strong enrichment under selectivity-oriented conditions
Repeated plant-pulp comparisons under comparable rougher conditions
Two operating objectives
Recovery-priority conditions amplify scheelite floatability, while enrichment-priority conditions use blend and dosage control to protect rougher concentrate quality.
Visible dosage path
Good rougher indicators were maintained after lowering collector dosage, leaving room for plant-scale optimization and cost control.
Depressant synergy
Depressant conditions affect rougher yield, grade and enrichment ratio, so scheelite collection must be evaluated with gangue depression and froth behavior.