Log in
en | fr | nl

TUD - Crystal Growth in an Airlift Crystallizer

Last updated 599 days ago by Albert Verver

logo

NL GUTS Group of Users of Technology for Separation in the Netherlands


  

20121204 TUD (Technical University Delft) - Mrs. Anamaria Soare – Optimizing Crystal Growth in an Airlift Crystallizer

The VVVVVV Group of TUD investigates the features of a crystallizer using airlift to reduse the shear stress on crystals normally observed in stirred crystallizers as part of the Task Based design Approach program. Work was executed in a concentrated (NH4)2SO4 solution in water, using laser induced cavitation to generate rather uniform nuclei.

The work indicates that air sparger configuration, gas entrainment, air bubble disengagement, air flow rate and seed load affect the final crystal size and crystal size distribution. It was demonstrated that the airlift crystallizer produces crystals near the ideal crystal size-seed load line. Growth was not limited by diffusion.

Further research is on-going to identify process optima. www.tud.nl

 


Join the NL GUTS LinkedIn community through : NL GUTS LinkedIn group
Visit the NL GUTS website www.processinnovation.nl/nlguts
For more information about NL GUTS please contact:
Jan Koning (chairman NL GUTS)
tel +32 473 976 135 - koning@trionpartners.nl
Bart Manders  (contact at RVO)
tel +31(0)88 602 2329 - bart.manders@rvo.nl