Na2SO4
Sodium sulfate (Na₂SO₄): crystallization and purification for chemicals and detergents
Sodium sulfate is a mineral salt used in many industries, including detergents and glass. It can be derived from:
- From mineral deposits
- Industrial co-products (chemicals, effluent treatment, etc.)
FE offers high-performance crystallization solutions for producing purified Na₂SO₄ that meets industrial requirements.
Two-stage crystallization: decahydrate then anhydrous
Depending on the quality of the incoming brine, the process may include:
- Initial cold crystallization for the decahydrate form (Na₂SO₄·10H₂O), enabling an initial purification step.
- Recrystallization with IFC® (Indirect Forced Circulation) for the anhydrous form (Na₂SO₄), to meet the specifications required by end applications.
Industrial applications:
- Detergents (bulking agent)
- Glass (melting)
- Chemistry (syntheses, catalysts)
Robust and high-performance technologies
Our crystallizers are designed to:
- Managing complex saline solutions
- Providing controlled particle size distribution
- Reduce fines and facilitate drying
Energy efficiency and suitable materials
- Possible integration of Mechanical Vapor Recompression (MVR) to reduce energy consumption
- Use of corrosion- and abrasion-resistant materials to ensure the durability of installations