Title of article :
Mass Transfer Coefficients in Pulsed Column for Separation of Samarium and Gadolinium
Author/Authors :
Torkaman, Rezvan School of Chemical Engineering - University College of Engineering - University of Tehran , Moosavian, Mohammad Ali School of Chemical Engineering - University College of Engineering - University of Tehran , Torab-Mostaedi, Meisam Materials and Nuclear Fuel Research School - Nuclear Science & Technology Research Institute - Tehran , Safdari, Jaber Materials and Nuclear Fuel Research School - Nuclear Science & Technology Research Institute - Tehran , Asadollahzadeh, Mehdi Materials and Nuclear Fuel Research School - Nuclear Science & Technology Research Institute - Tehran
Abstract :
The mass transfer performance of a pulsed disc and doughnut column for extraction of
samarium and gadolinium from aqueous nitrate solution with D2EHPA was investigated. The effects of
operating parameters such as pulsation intensity, continuous and dispersed phase velocities on column
performance were investigated. The axial dispersion model was used to obtain the overall mass transfer
coefficient. The previous models for overall mass transfer coefficient were reviewed and compared with
experimental data. A new correlation was derived for prediction of the overall mass transfer coefficients.
The presented model was compared with the experimental results and a good agreement between them
was obtained. The mass transfer experiments revealed the feasibility of operating the separation of
samarium and gadolinium in the pulsed disc and doughnut columns.
Keywords :
Rare metals , Pulsed column , Axial mixing , Solvent extraction , Mathematical modeling , Mass transfer
Journal title :
Astroparticle Physics
