Sodium Sulfate Recovery from Ternary Precursor Production with BPED Technology
Converting By-products into Reusable Chemicals
NCM (nickel-cobalt-manganese)Ternary precursor production for lithium-ion batteries generates sodium sulfate (Na₂SO₄) as a by-product. Managing this salt stream while reducing chemical procurement costs is an important challenge for manufacturers.
LANRAN’s Bipolar Membrane Electrodialysis (BPED) technology converts sodium sulfate into sulfuric acid (H₂SO₄) and caustic soda (NaOH), creating opportunities to recover valuable chemicals for reuse in suitable production processes.
How BPED Technology Works
Using ion-exchange membranes and bipolar membranes, BPED facilitates the conversion of sodium sulfate into sulfuric acid and sodium hydroxide under an applied electric field.
Overall reaction:
Na₂SO₄ + 2H₂O → 2NaOH + H₂SO₄
The recovered acid and alkali can be evaluated for reuse based on product quality and process requirements.
Key Benefits for NCM Manufacturers
- Reduce chemical procurement costs: Recover acid and alkali to supplement externally purchased chemicals.
- Improve by-product utilization: Turn sodium sulfate from a waste management challenge into a potential resource.
- Support circular production: Integrate salt conversion with chemical reuse to improve resource efficiency.
LANRAN BPED Solutions for Sodium Sulfate Recovery
LANRAN provides BPED technology for industrial salt conversion and resource recovery. By integrating sodium sulfate recovery into NCM precursor production, manufacturers can explore more efficient chemical utilization and reduced by-product disposal requirements.
Contact LANRAN to discuss BPED solutions for sodium sulfate recovery and acid–alkali conversion.
