Powdered coal activated carbon process is accomplished by the following three steps:

1): in the absence of oxygen carbonization of 600 – 900 ° C temperature range (usually under the use of nitrogen or argon and other inert gases, carbon by pyrolysis carbonization).

2) activation / oxidation: in the temperature higher than 250 ° C, the temperature range is generally 600 - 1200 ° C, the original material or carbonated material placed to the oxidizing gas (carbon monoxide, oxygen, or water vapor) activation.

3): special mill, mill in activated carbon powder good to 200 meshes to 300 meshes.