Sodium sulfite (Na₂SO₃) technology

Soda ash or caustic soda and SO₂ gas will be processed by soda preparation, absorption, neutralization, centrifugation, drying, etc. to generate sodium sulfite. SO₂ can come from sulfur burning or some other materials (containing sulfur) burning, tail gas recovery, etc

 1) Product purity is >97.5%, sulfur yield is >99.9%. 

 2) Continuous double evaporation process, and high degree of automation. 

 3) Solution for tubes blocking problem in evaporators, stable running.