Regeneration Method and Application of 4A Molecular Sieve
Regeneration Method and Application of 4A Molecular Sieve In the laboratory, it can be activated and dehydrated by drying in a muffle furnace at a temperature of 350°C and drying under normal pressure for 8 hours (if there is a vacuum pump, it can be dried at 150°C for 5 hours). The activated molecular sieve is cooled in the air to about 200°C (about 2 minutes) and stored in a desiccator immediately. If possible, use dry nitrogen for maintenance during the cooling and storage process to avoid re-adsorption of water vapor in the air. The old molecular sieve after use…