1. The meaning of silica gel and silica gel
Silica gel, also known as silica gel and ethyl silicate, is a polymer compound made from silica as the main raw material through hydrolysis and condensation reaction. It has a pore structure of macropores, mesopores or micropores and is widely used in the preparation of catalysts, adsorbents, dehydrating agents and other fields.
Silica gel is a new type of material formed by adding alumina (Al2O3) or alumina to silica gel. It has better high temperature resistance, chemical corrosion resistance and mechanical strength.
2. The difference between silica gel and silica gel
1. Different ingredients
Silica gel is made by adding alumina or alumina to silica gel, while silica gel is made from silica as the main raw material.
2. Different performance
Since silica gel contains alumina or alumina, it has better high temperature resistance, chemical corrosion resistance and mechanical strength. Silica gel is mainly used to prepare adsorbents, catalysts, dehydrating agents, etc., while silica gel is often used in corrosion-resistant high-temperature industrial fields.
3. Different Application
Silica-alumina gel is more suitable than silica gel in some high-temperature, high-pressure and corrosive environments, so it is often used in high-tech industrial fields such as manufacturing spacecraft, aircraft engines, and chemical equipment.
In short, silica-alumina gel is silica gel with aluminum oxide or aluminate added, which has better high temperature resistance, chemical corrosion resistance and mechanical strength. Silica gel is mainly used in the preparation of adsorbents, catalysts, dehydrating agents and other fields.