Executive SummaryVacuum drying is often selected for flammable solvents, combustible powders, and oxygen-sensitive materials because a closed low-pressure process can reduce oxygen exposure and facilitate solvent recovery. However, vacuum operation does not automatically make a dryer explosion-proof
Executive SummarySolvent recovery is a major reason for selecting closed vacuum drying for pharmaceutical, fine-chemical, specialty-chemical, and other solvent-wet products. During drying, solvent leaves the wet solid as vapor. A well-designed recovery train captures most of the condensable vapor in
IntroductionHigh-speed dispersing blades are useful when a powder contains soft agglomerates, cohesive fines, sticky portions, or bundled fibers. They create local velocity gradients and can help distribute material that does not separate through bulk circulation alone. However, not every powder sho