Why is the storage of activated alumina very important?
Activated alumina has a well-developed pore structure and a large internal specific surface area. If activated alumina is exposed to humid air for a long time, the product will gradually absorb moisture from the air. When this moisture is adsorbed by the product before it enters dryers, air separation equipment or other adsorption systems, part of its adsorption capacity is equivalent to being consumed in advance.
Especially in high-humidity areas, during the rainy season, in coastal areas, and in warehouses with poor sealing conditions, the storage of activated alumina should be given extra attention. If exposed to a humid environment for extended periods, with inadequate packaging, or directly exposed to air, activated alumina may absorb moisture, clump, or pulverize, affecting its effective adsorption performance. Previous technical documents from Zibo Xiangrun regarding activated alumina storage also indicate that damaged packaging, prolonged exposure to humid air, and a damp warehouse environment can all lead to moisture absorption and affect subsequent performance.
It is recommended that the maximum storage period for activated alumina be two years
Zibo Xiangrun recommends that customers manage inventory according to the production date and adopt a first-in, first-out principle as far as possible to avoid long-term backlog of products. For activated alumina that has been stored for a relatively long time, the packaging condition and product condition shall be inspected before formal loading into equipment. If necessary, performance confirmation shall be carried out in accordance with actual application requirements. It is recommended that the maximum storage time be controlled within two years.
How should activated alumina be stored properly?
First, keep the original packaging intact and sealed.
If the packaging has been opened but the product is not used up at one time, re-seal it in a timely manner to minimize the exposure time of the remaining product to air.
Second, the warehouse must be kept dry.
Activated alumina is not suitable for long-term storage in humid warehouses, open-air environments, water-prone locations or areas close to steam and water sources. The warehouse shall be kept dry, clean and ventilated, and direct contact of the product with rainwater, condensed water and other moisture shall be avoided.
Third, do not place the product directly on the ground.
Packages of activated alumina should be elevated with pallets as far as possible to avoid direct contact with damp ground. Meanwhile, keep them away from water-permeable walls, doors and windows, and positions where condensed water may be generated.
In addition, activated alumina shall be prevented from being stored together with oil products, solvents, corrosive chemicals and other substances liable to cause pollution for a long time.
How to store opened activated alumina?
If a package has been opened and the remaining product is exposed to air for a long time, it may gradually absorb moisture from the environment. Therefore, it is recommended to unpack reasonably according to the actual loading quantity, and do not open a large number of packages at one time for convenience.If activated alumina is found to be significantly damp, clumped, powdery, or otherwise abnormal, it should be inspected before use.
If obvious dampness, caking, pulverization or other abnormalities are found in activated alumina, inspections shall be conducted before use. For Zibo Xiangrun activated alumina, we recommend: storing it in its original sealed packaging in a dry, clean, and rain-protected indoor environment, and managing its inventory according to the production date, with a maximum storage time of no more than two years.
