The Role Of Rotary Evaporator in Chlor Alkali Production System

72% flake caustic soda refers to a chemical called sodium hydroxide (NaOH), also known as caustic soda or lye.

Alkaline liquor is an essential chemical in many industrial processes. It is widely used in the production process of textile, paper making, cleaning products, soap and other industries. With the development and expansion of these industries, the demand for lye has also increased accordingly.

Many processes in manufacturing industry need to use high concentration alkali liquor to realize specific chemical reactions. For example, in the paper manufacturing process, lye can be used to bleach and remove impurities; In the textile industry, lye can be used for dyeing and depilation. In the manufacture of cleaning products, lye can be used as a component of cleaning agent. Therefore, 72% flake caustic soda is produced to meet the needs of these industrial applications.

The production of high-concentration lye requires certain technical conditions and equipment. By controlling the parameters such as temperature, concentration and reaction time during the reaction, the required concentration requirements can be achieved.

 

The technology of producing 72% flake caustic soda is usually electrolysis.

Specifically, the principle of producing sodium hydroxide by electrolysis is: Using current to pass through the sodium salt solution in the electrolytic cell to produce hydrogen and oxygen, and forming sodium hydroxide solid on the electrode, and then obtaining the sodium hydroxide solution through hydrolysis reaction. This method can produce high concentration lye on a large scale.

 

Steps of producing sodium hydroxide by electrolysis

 

1. Prepare electrolytic cell: Electrolytic cell is usually made of stainless steel and other materials, which has the characteristics of high temperature, high pressure and corrosion resistance.

2. Adding raw materials: Adding sodium salt (such as sodium chloride) and water into the electrolytic cell to form a sodium salt solution.

3. Apply current: Apply DC current through the electrode, so that sodium ions move to the cathode and chloride ions move to the anode, generating hydrogen and chlorine gas on the electrode surface and sodium hydroxide solid on the cathode.

4. Collecting products: Collecting the generated sodium hydroxide solid from the electrolytic cell and carrying out hydrolysis reaction to obtain sodium hydroxide solution.

5. Purified product: The sodium hydroxide solution was purified, concentrated and filtered to obtain the final product of 72% flake alkali.

How to produce 72% flake caustic soda by rotary evaporator

 

• Initial concentration: First, add diluted sodium hydroxide solution into lab rotary evaporator. The rotary evaporator makes the solution evenly distributed on the whole surface by rotating the bottle body, which increases the evaporation surface area and improves the evaporation efficiency. At a lower temperature, the water in the solution gradually evaporates through evaporation, thus concentrating the solution.
• Continuous concentration: the concentration of the concentrated solution can be further increased by continuous operation of the rotary evaporator. By constantly evaporating and replenishing new diluted solution, the water content in the solution can be continuously reduced and the concentration can be gradually increased.
• Control temperature and pressure: During the whole concentration process, it is necessary to accurately control the temperature and pressure in the rotovap to ensure the stability of other components in the solution except water. This is very important for producing high concentration flake caustic soda.
• Collecting products: After continuous concentration, flake alkali solution with required concentration can be obtained. In this process, it is necessary to pay attention to the purity and concentration of the collected solution to ensure that the production requirements are met.

 

Storage Method

 

Storage environment: 72% flake caustic soda should be stored in a dry and well-ventilated place, and avoid direct sunlight and high temperature environment to prevent flake caustic soda from getting wet and melting. In addition, the storage area should be far away from combustibles and combustible materials to prevent fire or explosion accidents.

Selection of containers: Flake caustic soda should be stored in containers with good corrosion resistance. Commonly used storage containers include plastic barrels, glass bottles, etc., and the containers should be well sealed to prevent flake caustic soda from deteriorating and volatilizing due to contact with air.

Identification and warning: Eye-catching warning signs should be marked in the storage area to remind people of the danger. At the same time, the storage area should be far away from children and untrained personnel to prevent accidental contact and injury.

Prevention of leakage: During storage, special attention should be paid to prevent leakage of 72% flake caustic soda. In case of leakage, measures should be taken immediately to deal with it, and relevant departments and personnel should be informed.

Regular inspection: Regularly check the storage of 72% flake caustic soda, including checking whether the container is damaged, whether the seal is good and whether the label is clear. If you find any problems, you should take immediate measures to deal with them.

 

Main Applications

 

Chemical industry: In the chemical industry, 72% flake caustic soda is widely used in synthetic detergent, viscose fiber, printing and dyeing, soap, petroleum, paper making, rayon, oil refining and other production processes. It is also used to produce inorganic compounds such as borax and sodium cyanide.

Light industry: In light industry, 72% flake caustic soda is used to make viscose fiber, synthetic detergent, perfume, dye, medicine, printing and dyeing, glass, soap and so on.

Textile industry: In the textile industry, 72% flake caustic soda is used to treat silk and cotton fabric to remove oil stains and dyeing on the fabric and improve the quality and appearance of the fabric. In addition, it is also used to produce textile auxiliaries and printing and dyeing auxiliaries.

Oil refining industry: In the oil refining industry, 72% flake caustic soda is used to clean oil stains and remove impurities from petroleum products, thus improving the quality and stability of petroleum products.

Water treatment: 72% flake caustic soda can be used in water treatment process to remove impurities and pollutants in water and improve water quality.

 

 

ACHIEVE CHEM is a manufacturer specializing in rotary evaporator, with many years of technical accumulation and experience. In the production of 72% flake caustic soda, it has unique technology and process, which can efficiently produce high-quality products.

ACHIEVE CHEM adopts advanced rotary evaporator equipment, which can evaporate raw material solution efficiently and reduce energy consumption and production cost. At the same time, the equipment also has the characteristics of high precision and high stability, which can ensure the quality and output of products.

We adopts unique technological process and technical parameters in the production process, which can maximize the purity and yield of products. In addition, we also pays attention to environmental protection and safety issues in the production process, and adopts environmentally-friendly production methods and materials to ensure the safety and sustainability of the production process.

72% flake caustic soda produced by our company has the advantages of high purity, high density and high stability, and is widely used in chemical industry, medicine, pesticides and other fields. At the same time, we also provides perfect technical support and after-sales service to help customers solve problems in the production process and improve their production efficiency and product quality.

Any kinds of rotovap equipment for production, please contact us sales@achievechem.com