Mixing

Identifying Mixing Problems

AIChE Webinar
Jun 9, 2010
Suzanne Kresta

The webinar also covers the simplest, to the most complex, blending problems. In the simplest blending problems, there is one process objective, and one critical process specification.

Storage and Flow of Bulk Solids

AIChE Webinar
May 12, 2010
Karl Jacob

This webinar addresses the fundamentals of the flow and storage of bulk solids, and clearly demonstrates the considerable science behind the design and use of storage vessels for solids.

Introduction to Solids Processing and Particle Technology

AIChE Webinar
Jan 20, 2010
Karl Jacob

This webinar provides an overview to solids processing technology, and highlights some of the issues faced when dealing with bulk solids, including scale-down/scale-up, and effects of particle size.

Mixing Scale-Down Studies for the Scale-Up of Beer Fermentation

Nov 10, 2009
Alvin Nienow
Beer fermentations have traditionally been undertaken without the use of mechanical agitation with mixing being provided only by the CO2 evolved during the batch process. This approach has largely been maintained because of the belief in industry that rotating agitators would damage the yeast. In...

Inline Mixing Device for Medical Applications

Nov 10, 2009
Yves Delmotte
In the surgical field, the mixing of two combined fluid streams is required to form fibrin glue, used as a tissue sealant or a hemostat. The sealant components, fibrinogen and thrombin, have different viscosities, respectively 150 and 1 cps at 37°C. The viscosity of fibrinogen depends on the...

Aerobic Fermenter Scale-up: Why Equal Mass Transfer Scale-up Doesn't Always Work

Nov 9, 2009
Julian B. Fasano
Transferring oxygen to the liquid is only one of several steps that must occur in an aerobic fermentation. After the oxygen is transferred to the liquid, the liquid must be thoroughly mixed throughout the vessel. Then the oxygen must diffuse through the cell wall before finally being metabolized...

Find Mixing Success Through Failures - Part 2

December
2008
Fluids and Solids Handling
David S. Dickey, Gary K. Patterson
Understanding when and why mixing fails in the laboratory is often the only way of avoiding a similar failure in a production-scale reactor. Here we examine mixing in stirred-tank reactors and provide guidance on scale-up.

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