Activated carbon is a specially treated carbon that heats organic raw materials (coconut shell, coal, wood, etc.) in the absence of air to reduce non-carbon components (carbonization process), and then reacts with gas, and the surface is corroded. The well-developed structure of micropores (activation process) has caused countless small pores on the surface of activated carbon.
Activated carbon has developed pore structure, large specific surface area and abundant surface chemical groups. The adsorptivity of activated carbon comes from its unique molecular structure. There are many pores inside the activated carbon. Activated carbon has excellent adsorption capacity.
Due to the different sources of raw materials, manufacturing methods, appearance shapes, and applications, there are many types of activated carbons.
The application range of activated carbon is very wide, and with continuous research and development, the application industry is also increasing. The following is a list of commonly used activated carbon.
Activated carbon is an adsorbent with many categories. It is necessary to use indicators to distinguish different qualities, and to guide and control the quality of activated carbon production based on indicators; in different applications, indicators are also needed to determine activated carbon products with specific requirements. Therefore, the index parameters are very important in the production process of activated carbon.
Iodine value refers to the amount of iodine adsorbed by activated carbon in 0.02N 12/KL aqueous solution. Iodine value is an important index to judge the adsorption performance of activated carbon in liquid phase adsorption. The price of activated carbon with a high iodine value is higher.
Activated carbon CTC refers to the adsorption value of activated carbon carbon tetrachloride, which is used to indicate the adsorption capacity of activated carbon for gaseous substances. Pellet activated carbon and large particle diameter activated carbon are widely used in gas adsorption.
The methylene blue value mainly measures the decolorization ability of activated carbon. It is a very important indicator in terms of liquid phase adsorption such as sewage treatment, sugar, and pharmaceutical decolorization. Powder activated carbon, 12*40 mesh coal granular activated carbon are commonly used choices
The molasses value is a measure of the relative decolorization ability of activated carbon in boiling molasses solution, and it is an index to measure the ability of activated carbon to remove larger molecular weight pigments.
The performance parameters of activated carbon include hardness, ash, Ph, moisture, particle size, specific gravity and so on. According to the needs of different industries, there will be specific requirements for these parameters.
Activated carbon has a wide range of applications, such as: water treatment in water plants, drinking water purification, sugar decolorization, military gas masks, cigarette filters, air purifiers, gold recovery, treatment of radioactive element pollution, reduction of residual pesticides in the soil, and conditioning of soil performance , Solvent recovery, automotive vapor recovery and so on.