1. Interparticle forces

1.1 Demonstration of interparticle forces

By definition, the fluidized state is reached when the drag force exerted by the gas offsets the force of gravity. So it's easy to imagine that a fluidized bed will behave differently if cohesive forces are added between the particles.

Historically, a great deal of research has been carried out to characterize the fluidization of Class A particles. According to Geldart et al. , powders in this group are characterized by interparticle forces that are lower...

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Interparticle forces

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page Gas-Solid Fluidization ;Fine particles and nanoparticles

Types of fluidization behavior

Bibliography

(1) - GELDART (D.), HARNBY (N.), WONG (A.C.) - Fluidization of cohesive powders. - Powder Technology, 37, p. 25-37 (1984).
(2) - MOLERUS (O.) - Interpretation of Geldart's type A, B, C and D powders by taking into account interparticle cohesion forces....

Software tools

Ergun Fluidization Software http://www.utc.fr/ergun/

Websites

UNIT module (open-access distance learning course): "Powder Science and Technology" and fluidization model http://nte.enstimac.fr/STP/co/STP_web.html http://nte.enstimac.fr/STP/co/OU8.html

Events

Fluidization XV May 22-26, 2016, Fairmont Le Chateau Montebello, Quebec, Canada

World Congress of Particle Technology VIII April 22-26, 2018, Orlando, Florida, United States

9th Symposium on Powder Science and Technology (STP) 2018, Compiègne, France

Patents

K. Saleh, F. Cordier, D. Steinmetz, M. Hemati, S. Gomez Gallardo, B. Chaudret, K. Philippot. Process for manufacturing supported metal nanoparticles in a fluidized bed. National registration no. FR 0107020.

K. Saleh, D. Steinmetz, M. Hemati. Process for coating and laminating fine powders in a fluidized-bed coater. Publication no. 2 791 905, national registration no. 99 04433, Patent FR 2 791 905 A1....