Segregation

Segregation refers to the unwanted separation of particles within a mixture, often caused by differences in size, shape, or density. This phenomenon can lead to inconsistent product quality, reduced processing efficiency, and challenges in material handling, particularly in industries like pharmaceuticals, food, and chemicals.

On this page, explore the causes of segregation, its impact on industrial processes, and strategies to minimize it, ensuring uniformity and reliability in your operations.

Featured Segregation Articles

Co-Processed Excipients in Continuous Manufacturing: How Particle Engineering Changes Powder Flow and Compaction Performance
Co-processing engineers particle morphology, density, and surface structure into a single composite excipient particle. Flow function and compactibility testing show what that buys formulators on continuous direct compression lines, and where it does not.
Dense-Phase vs Dilute-Phase Pneumatic Conveying: Matching Conveying Mode to Attrition and Segregation Risk
Dense-phase and dilute-phase pneumatic conveying create different particle contact mechanics, and the resulting attrition and segregation risk depends on velocity, solids loading ratio, and the powder's own attrition sensitivity, not on a fixed assumption about which mode is gentler.
Vibration as a Flow Aid: When It Helps Powder Flow
Vibration can improve powder discharge when it breaks a weak arch or releases a local obstruction. However, it can also compact the powder bed, increase segregation, change bulk density, and destabilize feeding. Use vibration as a flow aid only when it matches the failure mechanism. Vibration changes the [...]
Fine Powder Fluidization in Pneumatic Conveying and Discharge Control
Fine powder fluidization can support controlled pneumatic conveying, especially in dense phase systems where lower velocity helps reduce wear and product damage. Problems appear when entrained air remains in the powder after transfer. At that point, the receiving hopper, feeder, outlet, or filling step may see flushing, segregation, delayed discharge, or weight variation. [...]
Powder Operating Window: Why a Good Powder Fails in the Wrong Process
A powder operating window defines the process conditions in which a material behaves reliably. When a powder meets specification but still fails during handling, storage, feeding, or processing, the crossed boundary often lies in consolidation stress, wall friction, aeration, humidity, wetting behavior, segregation, temperature, or time. Useful diagnosis starts by finding that [...]