Air separation water-resistant silica gel appears as white spherical granules with a high microporous structure, resistant to acid, alkali, and solvents. It has good thermal stability, is non-toxic and odorless. It exhibits high water resistance, adsorption capacity, high compressive strength, long service life, and a low regeneration breakage rate, outperforming other desiccants. Air separation water-resistant silica gel, also known as water-crack-resistant silica gel. Common silica gel typically has an open porous structure and a large specific surface area, enabling it to adsorb various substances, making it an excellent desiccant, adsorbent, and catalyst carrier. However, it tends to crack upon contact with water, reducing the integrity rate of particles and affecting normal processing. It boasts good thermal stability, is non-toxic and odorless, and offers advantages such as high water resistance, strong adsorption capacity, high compressive strength, long service life, and low regeneration breakage rate. Air separation water-resistant silica gel is primarily used for air drying in air separation processes, acetylene adsorption in the preparation of liquid air and liquid oxygen, drying of compressed air and various industrial gases. It serves as a liquid adsorbent and catalyst carrier in industries such as petrochemicals, power, and brewing, and is used for water purification in water treatment.