Abstract
When pressure filtration is used to produce composite materials from a mixed suspension, segregation of the different particle types is apt to occur due to different sedimentation velocities. This results in an inhomogeneous, thus inferior product. To understand and reduce segregation, a model is proposed to describe segregation due to gravitational settling during pressure filtration from a dispersed suspension consisting of two types of particles with different sizes and/or densities. The model combines the consolidation mechanisms of sedimentation and filtration and predicts the composition profile in the formed material. Experimentally determined cast profiles are in good agreement with model predictions.
| Original language | English |
|---|---|
| Pages (from-to) | 2595-2606 |
| Number of pages | 12 |
| Journal | Chemical engineering science |
| Volume | 55 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2000 |
Keywords
- Suspension processing
- Sedimentation
- Segregation
- Filter pressing
- Filtration
- Cast formation