Signature Series - Professor Jun Oshitani (Okayama University of Science, Japan): 'Dry separation based on float-sink and density segregation in a gas-solid fluidized bed'

COEMinerals / Signature Series presentation: Wednesday 26 July 2023

Dry separation based on float-sink and density segregation in a gas-solid fluidized bed
Presented by Professor Jun Oshitani, Department of Applied Chemistry, Faculty of Engineering, Okayama University of Science, Japan

Abstract

A gas-solid fluidized bed has liquid-like properties. Large objects float or sink in the fluidized bed based on density differences. When binary mixtures of different-density particles are fluidized, the particles segregate by density; lighter particles move upward, and the heavier ones move downward. Dry separation using float-sink and density segregation is in great demand as an alternative to the commonly used wet separations which have various environmental issues. I’ll talk about our fundamental studies focusing on ​“Float-sink of large objects in a gas-solid fluidized bed different from that in a liquid” and ​“Density segregation in a fluidized and/​or vibrated powder bed”.

Biography

I graduated from Kyoto University in 1998 with a PhD. After that, I worked at Okayama University for 18 years. Then, I moved to Okayama University of Science In 2016. My research field is powder technology, especially the development of dry separation technology. I have about 90 papers and 20 patents. I have been collaborating with George Franks for a long time. I have been to Australia many times, so I love Australia!!!