Case Sharing on Vanadium Enhancement

August 10, 2026

Case Sharing on Vanadium Enhancement

Feedstock Source: Sulfate‑bearing acidic wastewater generated from the stone coal vanadium extraction process.
Feedstock Properties: pH 1~2, reddish‑brown in color, containing pentavalent vanadium (accounting for ~95% of total vanadium) and other metallic impurities.

Treatment Objective: Selectively adsorb and recover pentavalent vanadium to realize resource utilization.

Multi‑Cycle Adsorption Performance Test Results (Partial Data)

Cycle Treatment Volume (BV) Inlet Concentration (g/L) Outlet Concentration (g/L) Eluate Volume Eluate Concentration (g/L) Adsorption Capacity (g/L) Adsorption Efficiency
Cycle 1 86 BV 4.1 0.41 201 mL 77.64 312.11 90.1%
Cycle 2 93 BV 3.69 0.18 180 mL 90.75 327.06 95.1%
Cycle 3 25 BV 3.78 0.20 100 mL 55.72 122.76 94.7%
  • Adsorption Efficiency: Consistently maintained between 90% and 96%
  • Adsorption Capacity Range: 122.76 ~ 327.06 g/L (per liter of resin)
    • Stability: No decline in resin adsorption performance observed after multi‑cycle repeated tests

     Pilot‑Scale Industrial Simulation Validation

    A process combining serial resin columns and multi‑stage adsorption was adopted for efficient pentavalent vanadium extraction.

Test data proves the resin retains high adsorption capacity and excellent selectivity even in acidic streams abundant with miscellaneous impurities.

 Key Performance Indicators & Application Value (Promotional Product Data)

Performance Indicator Typical Value Application Value
Saturated Adsorption Capacity ≥200 mg/mL Lower capital expenditure for equipment, larger single‑batch throughput
Dynamic Adsorption Rate ≥99% Maximized raw feed utilization with nearly zero vanadium loss
Vanadium‑Rich Eluate Concentration 100~120 g/L Directly applicable for subsequent vanadium precipitation, simplifying overall workflows

Key Highlights

1.Outstanding adsorption performance: The maximum tested adsorption capacity exceeds 300 g/L, far higher than the rated specification.

2.Reliable cycling stability: Performance remains stable after repeated adsorption‑elution cycles, suitable for long‑term industrial operation.

3.Broad process adaptability: Preserves high selectivity and recovery rate in strongly acidic feedstock with diverse impurities.

4.Cost‑effective operation: High‑concentration vanadium‑rich eluate can be directly used for vanadium precipitation, eliminating intermediate concentration steps and cutting operational expenses.