Extruded activated carbon

We select local high quality anthracite coal (low sulfur, low ash), which is crushed, screened or pulverized and prepared into raw coal with qualified particle size. We also choose high quality coconut shell or fruit shell as raw material.

Qualified coal powder is mixed with a fixed amount of binder and additives at a certain temperature to form a uniform paste. The mixed paste is extruded under a certain pressure to make raw charcoal strips of a certain diameter, called molding. The molding equipment we use is a four-column hydraulic press.

After drying the extruded carbon strips, they are carbonized at a high temperature under air-isolated conditions to produce carbon-based materials. After that, activation treatment is carried out to increase the pore structure and specific surface area of the material by means of physical activation, so as to improve its adsorption performance.

Pickling and impregnation are common additional steps in the process of activated carbon production to meet specific needs and improve the performance of the activated carbon.

Acid washing aims to improve the purity and adsorption properties of the activated carbon and also adjusts the pH value of the product.

The impregnation process customizes the properties of the activated carbon by immersing it in a solution containing specific substances. This process adjusts and improves the chemical properties of the activated carbon to suit different application scenarios.

When performing these processes, we follow relevant safety standards and production norms to ensure the quality and performance of the final product.

In the final stage of activated carbon production, key steps include sieving, packaging and quality control. First, the sieving process ensures that the product meets the specified particle size criteria. This helps to improve the uniformity and effectiveness of the activated carbon in the application.

The quality control process is an important part of ensuring that the product meets standards and specifications. By performing quality tests, assays, and possible third-party certifications, it is ensured that the performance indicators of the activated carbon meet the expected standards. This includes testing of parameters such as CTC, specific surface area, strength, etc. to ensure the stability and reliability of the final product.