Activation of wide pore microsphere silica gel

Activation of wide pore microsphere silica gel usually involves heating and chemical treatment to improve its adsorption performance and chemical stability. The following are common activation treatment steps:

Washing: First, wash the macroporous microsphere silica gel with deionized or distilled water to remove impurities and residues on the surface.

Drying: The washed silica gel is dried at low temperature (usually 100-150°C) to remove moisture. This step helps to improve the adsorption capacity of silica gel.

High temperature activation: The dried silica gel is activated at high temperature (usually 500-600°C). This process can remove organic impurities inside the silica gel through pyrolysis or combustion and increase its surface area and porosity.

Chemical treatment: Depending on the specific application, chemical reagents may be used for further treatment. For example, the silica gel can be treated with acid or alkalinesolutions to improve its surface functionality and chemical stability.

Cooling and storage: The treated silica gel needs to be cooled in an inert atmosphere toprevent oxidation. It is then stored in a dry, clean environment to maintain its activation state.

These steps can be adjusted and optimized according to specific application and equipment conditions. Activated macroporous microsphere silica gel usually has higher adsorption capacity and chemical stability, suitable for a variety of industrial and laboratory applications.