Thursday, December 18, 2008

Shifting high-speed powder induction into overdrive

Every process engineer who has worked with powders such as fumed silica, CMC, guar, xanthan, carageenan, alginates and other thickeners has come face to face with one of the toughest challenges in mixing. Many of the powders that are most often used inthe process industries are hard to wet out and mix.They will float for hours on the surface of a liquid batch. Even with vigorous agitation, they’ll sail in circles on the slopes of a vortex and resist being drawn down into the batch. Once submerged, they form agglomerates that continue to resist being separated and dispersed.

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