Prezi logo
Log in
Loading…

Elutriation 2.0

CK

Cara Kyonka

Transcript

Elutriation

Amanda McDuffee

Cara Kyonka

Carly Ecker

Darian Johnson

Daumier Mageswki

Elutriation is a process of sizing particles by means of an upward current of fluid, usually water or air. This process is also the reverse of gravity sedimentation. For elutriation Stokes’ law applies.

Work Cited

Chase, George G. "Solids Notes 6." Solid Notes 6 (n.d.): 6-1--7. Web. 8 Mar. 2015.

Hinsberg, V. J. Van. "WILLS' MINERAL PROCESSING TECHNOLOGY: AN INTRODUCTION TO THE PRACTICAL ASPECTS OF ORE TREATMENT AND MINERAL RECOVERY: Seventh Edition, by B.A. Wills and T.J. Napier-Munn. (2006) Butterworth-Heinemann (Elsevier), Burlington, Massachusetts. 456 P. ISBN: 978-0-7506-4450-1. $59.95." American Mineralogist 93.1 (2008): 90-106. Www.knovel.com. Web. 7 Mar. 2015.

"INTERNATIONAL REVIEW OF CYTOLOGY." Google Books. Ed. G. H. Bourne, K. W. Jeon, and M. Friedlander. Academic Press Inc, 1986. Web. 08 Mar. 2015.

Nesdore, Paul. "Point of View: The Power of Elutriation." Controlled Environments Magazine. Controlled Environments, 31 Mar. 2004. Web. 08 Mar. 2015.

Wogsland, Justine. "INNOVATIVE MAGNETIC ELUTRIATION TECHNOLOGY OFFERS ENERGY, WASTE, AND ECONOMIC SAVINGS FOR THE DOMESTIC IRON ORE MINING AND STEEL INDUSTRIES." Magnetic Elutriation Technology for Clean and Efficient Processing of Iron Ore (n.d.): n. pag. NAL RENEWABLE ENERGY LABORATORY. US Department of Energy, 01 Jan. 2001. Web. 8 Mar. 2015.

Bloopers...but not really....

  • Mining companies use a magnetic elutriation process using water (not chemicals) to flush away impurities
  • Sterling Blowing Company use elutriation to separate: fiber and paper from plastic, fiber from rubber, and paper from metal
  • Garbuio Dickinson uses elutriation to separate tobacco leaves from stems

Industrial Uses

Common Uses

  • Mining of ore
  • Polishing mirrors
  • Separating protein, viruses and bacteria
  • Preparing medical devices
  • Producing GMR-read/write heads for hard drives

Pros and Cons

Decantation

  • Achieve complete separation
  • Requires far less volume changes than decantaion
  • Causes minimal cell damage
  • Doesn't work if particles aren't nanoparticles
  • Velocity isn't consistent through the cross area of the tube because the air/water has constant velocity
  • Can cause a decrease in particle concentration
  • It requires expensive equipment to set up a cell
  • It is very time consuming to establish the same elutriation conditions in different cell types

Example Problem

Demonstration