CECHLO™ 2/3 Industrial Salt Splitting System

Why Choose the CECHLO™ 2/3 Industrial Salt Splitting System?

Innovation: Our CECHLO™ 2/3 salt splitting electrolyzer introduces a new era of cost-effective and efficient solutions for rapidly expanding niche markets. It caters to processes requiring either advanced processing or recovery solutions, making it ideal for applications like acid and caustic recovery through salt splitting or small to medium-sized chlor-alkali installations.

Industrial Recovery: CECHLO™ technology facilitates industrial recovery applications in diverse sectors, including:

• Sodium sulfate (NaOH, H2SO4) extraction from pulp and paper manufacturing, chemical production, and more.
• Lithium sulfate (LiOH, H2SO4) recovery for lithium-ion battery manufacturing.
• Tetramethyl ammonium (TMA) extraction for semiconductor production.

Versatility: De Nora offers two sizes of electrolyzers with different cell electrode effective areas, allowing for flexible cell stack designs. Whether you need a compact CECHLO™ 2/3 salt splitting electrolyzer for field pilot-scale and lab tests or a large industrial capacity unit, we have you covered.

Wide Ion Range:

• Cations: Sodium, Lithium, Potassium, Tetramethylammonium, Hydrogen, Ammonium
• Anions: Halogens, Sulfate, Carbonate, Nitrate, Acetate, Phosphate

Application Highlights:

• Feed: Lithium Chloride, Sodium Sulfate, Sodium Carbonate, Lithium Sulfate
• Product: Lithium Hydroxide, Caustic and Sulfuric Acid, Caustic and CO2
• Applications: Lithium-Ion Batteries, Pulp and Paper Industry, Caustic Soda Recovery

How does the CECHLO™ 2/3 Industrial Salt Splitting System work?

The process of splitting lithium sulfate (Li2SO4) using CECHLO™ 2/3 Industrial Salt Splitting technology involves the separation of lithium (Li) and sulfate (SO4) ions from lithium sulfate salt. This process is essential in industries like lithium-ion battery manufacturing, where the lithium ion is a crucial component for battery production. Here's an overview of the process from the image.

1. Preparation of Lithium Sulfate Solution:
Lithium sulfate is typically available as a solid salt. To begin the splitting process, it needs to be dissolved in water to form a lithium sulfate solution. The concentration of the solution may vary depending on the specific application.

2. Electrolysis Cell Setup:
The lithium sulfate solution is introduced into an electrolysis cell, which consists of two or three compartments separated by ion-selective membranes.

3. Electrochemical Reactions:
An electric current is applied to the electrolysis cell, which initiates several electrochemical reactions:

• At the anode (positive electrode), water (H2O) loses electrons and is oxidized to oxygen gas (O2) and protons (H+).
• At the cathode (negative electrode), water (H2O) gains electrons and is reduced to hydrogen gas (H2) and hydroxyl ions (OH-).

4. Product Separation:

The lithium generated at the cathode is collected and can be used for various applications, with one of the primary uses being in lithium-ion battery production. The oxygen gas produced at the anode is released into the atmosphere.

5. Byproduct Management:

In addition to lithium metal and oxygen gas, other minor byproducts may be generated during the process, depending on the specific conditions. These byproducts need to be managed according to environmental regulations.

6. Control and Monitoring:

The entire process is closely monitored and controlled to optimize energy efficiency, product yield, and safety.

It's important to note that the efficiency and specific details of the lithium sulfate splitting process may vary depending on factors such as the design of the electrolysis cell, the concentration of the lithium sulfate solution, and the desired purity of the lithium metal produced.

This process is critically important to the production of high-purity lithium metal, which is an essential component in lithium-ion batteries, used extensively in portable electronics, electric vehicles, and renewable energy storage systems. Efficient lithium sulfate splitting is crucial for ensuring a reliable supply of high-quality lithium metal for these applications.