Accelerate your biologic drug development with Praesto®
* Once the resin is put into service, backwashing is not permitted as this will lead to shortened bed life.
|Polymer Structure||Polystyrene crosslinked with divinylbenzene|
|Appearance||Brown spherical beads|
|Particle Size Range||300 - 1200 µm|
|< 300 µm (max.)||1 %|
|Uniformity Coefficient (max.)||1.7|
|Shipping Weight (approx.)||720 - 760 g/L (45.0 - 47.5 lb/ft³)|
|Temperature Limit||80 °C (176.0 °F)|
|pH limits, Operating||4.5 - 8.5|
The pressure drop across a bed of ion exchange resin depends on the particle size distribution, bed depth, and voids volume of the exchange material, as well as on the flow rate and viscosity of the influent solution. Factors affecting any of these parameters— such as the presence of particulate matter filtered out by the bed, abnormal compressibility of the resin, or the incomplete classification of the bed—will have an adverse effect, and result in an increased head loss. Depending on the quality of the influent water, the application and the design of the plant, service flow rates may vary from 10 to 40 BV/h.