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  • Pharmaceutical Powder Flow Characterization: Small Volume Testing Needed
    There is a saying: Go big or go home. But not when dealing with sample testing of pharmaceutical powders. Then the saying is: Waste not, want not. In the cutthroat world of Big Pharma, staying one step ahead of the competition is imperative. Research to create the next new drug is a costly endeavor
  • Fine Powder Design - Flow Rate Control (.pdf)
    conditions. Flow rate limitations are often severe and it is difficult to tell the difference between a slow flow rate limited condition and a cohesive hang-up. Fine powders have two flow modes under gravity feed conditions. If there is enough gas entrained in the material, then the bulk solid becomes
  • Cascade Separation of Powders
    Cascade Separation of Powders. Describing the theoretical work and practical results obtained in recent years in the area of classification of powders in moving flows, this book presents mathematical fundamentals of the structural, dynamic and kinetics models of the process.
  • Granulating Spray Dried Powders
    Problem: While mixing ingredients in solution and spray drying into a fine powder creates a very uniform blend, the fine cohesive nature of many spray dried powders often creates problems in dustiness, flow-ability, and dissolution in downstream processes. In this particular situation, a powder
  • Application Note: Brownie Mix
    A Brookfield Powder Flow Tester, equipped with Powder. Flow Pro software for automated instrument control and. data acquisition, was used to test this name brand brownie. mix.
  • Nutraceutical Powders Need Quality Control
    This article examines the flow behavior of nutraceutical powders, the proper test method for defining their flow parameters, and the implementation of fast and accurate QC checks that ensure a smooth production run.
  • Simple Physics of Powder Density in Gravity Discharge
    Powder at rest can be deceiving. Spread out on a horizontal surface, the particles may look perfectly flowable because they move easily to the touch. Put the powder into a container and its behavior in gravity discharge out the bottom may be something very different. Why?
  • Powder Consolidation: Why It's a Problem and How to Solve It (.pdf)
    Tablet making machines can suddenly jam in the middle a high speed production run. What's the reason? One cause is the consolidation of the powder in the feed hopper which means that the cohesive strength of the powder to stick together is stronger than the force of gravity driving it down

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