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Thursday 11 December 2003

10:00-11:00 Graham, P (Unilever)


Title:  Powder Flow During Detergent Powder Manufacture


Abstract:  Modern detergent powders are comprised of different components made by spray drying and granulation processes. 
They are typically produced at an annual scale of 50,000-100,000 tonnes, and are formulated to dispense, disperse 
and dissolve quickly to wash a variety of fabrics under a broad range of in-use conditions and dosage.

Unit operations in the manufacturing processes will be outlined from raw material handling through to finished 
powder storage. Gaps in fundamental understanding remain, and areas of actual and potential research activity 
involving granular and particle-laden flows will be highlighted.