Production of Caustic Soda with LEWA Pumps

Solutions for the production of caustic soda and other bases

Advantages of LEWA systems in dilution of caustic soda and other bases:

Suitable for all concentrations
Enables simplified processes
Process of caustic dilution works both in manual operation as well as in automatic operation
Dual analysis system – for process control, concentration test and recording of the process
Optional temperature monitoring to avoid precipitation
More flexibility in production
More independence from supplier quantities
Stocking small amounts is possible or storage times are increased
Cost savings in caustic dilution and logistics

Two typical versions of caustic production

Versions with or without inline caustic dilution system can be seen here in direct comparison:

Typical versions of the inline caustic dilution system

1. LEWA caustic dilution module
Version eco.

2. LEWA caustic dilution module:
Version for low concentration.

3. LEWA caustic dilution module:
Version for high concentration with a heat exchanger for process control.

Areas of application for LEWA systems for caustic dilution

Applications, in which the LEWA inline caustic dilution system can be used:

Water treatment
Food processing (e.g., rinsing and cleaning bottles in drink filling systems, removing greasy and oily contamination)
Production of cleaning agents (e.g., of sodium soaps)
Vegetable oil processing
Processes in the chemical industry (e.g., neutralizing acids)
Cleaning pharmaceutical facilities with CIP in varying concentration
Glass processing

Background for the production of caustic soda and other bases

Process description of caustic dilution:

Caustic solutions, such as caustic soda, are normally commercially available in concentrations of 50% and higher. The dilution of an alkaline solution is a controlled process, which prevents precipitation and/or extreme exothermic reactions.

Caustic soda is the designation for solutions of sodium hydroxide (NaOH) in water. These are alkaline solutions. Caustic soda dissolves very well under heat development in water. Caustic soda is one of the most frequently used laboratory and industrial chemicals as a cleaning agent.

Density, conductivity and pH value

Density of an aqueous caustic soda solution (NaOH)

Conductivity of an aqueous caustic soda solution (NaOH)

pH value of an aqueous caustic soda solution (NaOH)

Industries

Robust metering solutions for the use in the Chemical industry

Chemicals

LEWA supplies you with individual chemical pumps and customized system solutions for various areas of application in the chemical industry.

Systems and pumps for the Cleaning and Detergents industry

Cleaners & Detergents

We offer reliable, formula-controlled systems for the production of cleaners and detergents. Ask the LEWA experts for more information now!

Pumps specially designed for the Cosmetics Industry

Personal care

LEWA is your reliable partner in the production of personal care products. Our systems meet the strictest quality and hygiene requirements. Ask us for more information!

LEWA pumps and systems meet the requirements of the Pharmaceuticals industry

Pharma, Life Science & Biotech

LEWA supplies pumps and systems for the pharmaceutical, life sciences, and biotech industries that comply with all hygienic requirements. We're happy to help you!