sodium hydroxide production line
Sodium hydroxide production line is an advanced chlor-alkali production system designed for the efficient manufacture of high-purity caustic soda (NaOH), chlorine (Cl₂), and hydrogen (H₂). The plant adopts ion-exchange membrane electrolysis technology, offering high product quality, low energy consumption, stable operation, and excellent environmental performance.
The production process mainly includes brine purification, secondary brine treatment, membrane electrolysis, chlorine treatment, hydrogen treatment, caustic soda concentration, and supporting utility systems. Purified brine is fed into the electrolyzer, where direct-current electrolysis separates sodium chloride into caustic soda, chlorine, and hydrogen.
Compared with traditional chlor-alkali technologies, membrane electrolysis provides significant advantages in energy efficiency and product purity. The caustic soda obtained from the electrolyzer can be further concentrated according to the customer's required product specification.
Main Process Sections
- Raw brine preparation and purification
- Primary and secondary brine purification
- Dechlorination and brine treatment
- Ion-exchange membrane electrolyzer system
- Chlorine cooling, drying and compression
- Hydrogen cooling and purification
- Caustic soda circulation and concentration
- Product storage and transfer
- Instrumentation and automatic control system
- Electrical and utility systems
Key Advantages
- Advanced ion-exchange membrane electrolysis technology
- High-purity caustic soda production
- Lower specific power consumption
- Reliable and continuous plant operation
- High degree of process automation
- Reduced environmental impact
- Flexible plant capacity according to project requirements
- Integrated engineering design and equipment supply
We provide complete engineering solutions for membrane caustic soda plants, including process design, equipment selection, system integration, manufacturing, installation guidance, commissioning support, and technical service.
The sodium hydroxide production line can be customized
Sccording to production capacity, raw material conditions, utility availability, product concentration, local standards, and customer's specific requirements.
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