Hi
Does anyone know a better way of dry packing Pt-Alumina powder into a short column (used for online reduction) other than hand packing? We are suspecting the column might be caving in due to uneven packing.
Thanks!
Febin Cherian John
Vibrational Packing: This method involves using a vibration table or shaker to settle the powder particles into a more uniform and dense packing. The column is placed on the vibration table and vibrated at a controlled frequency and amplitude while the powder is slowly poured into the column. This method can result in a more uniform and compact packing of the powder. Centrifugal Packing: This method involves spinning the column around its central axis while slowly pouring in the powder. The centrifugal force generated during spinning causes the powder to settle towards the outer wall of the column, resulting in a denser and more uniform packing. However, this method requires specialized equipment and may not be suitable for all column sizes and shapes. Pneumatic Packing: This method involves using compressed air or gas to push the powder into the column. The column is placed vertically with a porous plate at the bottom and the powder is poured into the top of the column. Compressed air or gas is then introduced from below the porous plate to push the powder into the column. This method can result in a more uniform and compact packing, but it requires specialized equipment and may not be suitable for all powder types.
Hand packing is a common method for dry packing powder into a column, but it can result in uneven packing and lead to issues like caving in of the column. To achieve more uniform packing of the Pt-Alumina powder, you could try the following alternative methods:
Overall, the choice of the most appropriate method will depend on various factors such as the column size, the powder properties, and the available equipment. It is important to carefully control the packing conditions to achieve a uniform and dense packing of the powder.
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