Description

Project Overview

Sodium nitrate (NaNO₃) is widely used in fertilizers, glass manufacturing, metallurgy, chemicals, explosives, and specialty industrial applications.As an important industrial chemical, high-purity sodium nitrate is essential for many downstream manufacturing processes.

Our Sodium Nitrate Evaporation and Crystallization System is specifically designed to concentrate dilute sodium nitrate solutions and produce high-quality crystalline sodium nitrate with high recovery efficiency.

Combining forced circulation evaporation, cooling crystallization, heat recovery, and intelligent PLC control, the system provides a reliable and energy-efficient solution for modern sodium nitrate production plants.

Process Flow   

Based on the physical properties of sodium nitrate solution, the system adopts a Single-Effect Forced Circulation Evaporator integrated with cooling crystallization and centrifugal separation.

The process consists of four major stages:

1. Feed preheating using recovered condensate and exhaust heat.

2. Forced circulation evaporation to concentrate the solution to supersaturation.

3. Cooling crystallization to promote crystal growth.

4. Centrifugal separation of sodium nitrate crystals from the mother liquor.

5. Mother liquor recycling in evaporator for further concentration to maximize product recovery while minimizing the waste generation. 

Key Advantages

•  High sodium nitrate recovery

•  Low steam consumption through heat recovery

•  Stable continuous operation

•  Excellent anti-scaling performance

•  Reduced maintenance requirements

•  Intelligent PLC automation

•  Customized design based on feed characteristics

•  Suitable for industrial-scale production

Main Equipment 

The complete sodium nitrate evaporation and crystallization plant typically includes:

•   Single-Effect Forced Circulation Evaporator, including:

     – Feed preheaters

     – Heater (heat exchanger)

     – Vapor-liquid separator

     – Surface condenser

     – Forced circulation pump

     – Vacuum system

     – Associated piping and instrumentation

•    Cooling Crystallization System

•    Centrifuge with mother liquor collection and recycling system

•    Heat Recovery System for condensate energy recovery

•    PLC-Based Automatic Control System

Applications

Our single-effect forced circulation evaporation & crystallization systems are suitable for:

•   Industrial salt production 

•   Chemical manufacturing

•   Fertilizer industry

•   Industrial salt recovery

•   Resource recycling

•   Industrial wastewater concentration

Why Choose Us?

With extensive experience in evaporation and crystallization technologies, we deliver customized process solutions tailored to each customer’s requirements. From laboratory testing and process design to equipment manufacturing, installation, commissioning, and after-sales support, we provide complete turnkey systems that maximize product quality, reduce operating costs, and ensure long-term reliability.

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