Air separation water-resistant silica gel appears as white or gray-white spherical particles, featuring a highly microporous structure. It is resistant to acids, alkalis, and solvents, with excellent thermal stability. It is non-toxic, odorless, and exhibits high water resistance and adsorption capacity. With superior compressive strength, long service life, and low regeneration breakage rate, it outperforms other desiccants. Air separation water-resistant silica gel is primarily used for air drying in air separation processes, acetylene adsorption during 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 also used for water purification in water treatment.