Argonne National Laboratory
RERTR
Reduced Enrichment for Research and Test Reactors
Nuclear Engineering Division at Argonne
U.S. Department of Energy

Home  :: 1998 International RERTR Meeting Program  :: Related Documents

Abstracts and Available Papers Presented at the
1998 International RERTR Meeting

DISSOLUTION AND ION EXCHANGE OPERATIONS MATHEMATICAL
MODELING IN A 99MO PRODUCTION PROCESS
FOR MEDICAL PURPOSES

M. A. Gonçalves, A. R. L. Nery, M. Yamaura, M. C. F. C. Felinto,
R. L. Camilo, V. H. Cohen

MQT - Divisão de Tecnologia Química e Ambiental
Instituto de Pesquisas Energéticas e Nucleares
Travessa R, 400 Cidade Universitária
05508-900 São Paulo SP Brazil

E-mail:maugusta@net.ipen.br

Abstract

This work deals with the mathematical modeling of target dissolution and AG1X8 ion exchange column in the process employed to obtain 99Mo from irradiated LEU (low enrichment uranium) targets.

Parameters describing temperature influence on reaction rate and the order of cladding dissolution reaction were determined. In order to obtain the parameters needed to modeling the breakthrough and elution curves of AG1X8 purification column, adsorption equilibrium isotherms were studied in molybdenum concentration range from 1 mg/L to 10 g/L in alkaline media at room temperature, 40 ºC and 60 ºC. Langmuir and Freundlich models were used to fit adsorption isotherms data and numerical optimization was applied to calculate mass transfer coefficients, needed to solve the partial differential equations describing the column loading and elution steps.


PDF version available
DOWNLOAD full paper in PDF format.


Contact:
Maria Cláudia F.C. Felinto
Instituto de Pesquisas Energéticas e Nucleares-CNEN/SP
Travessa R, 400 - Cidade Universitária
São Paulo SP 05508-900
Brazil

Phone: 55 11 816 9339
Fax: 55 11 816 9325
Email: mfelinto@net.ipen.br

2016 RERTR Meeting

The 2016 International RERTR Meeting (RERTR-2016) will take place in Belgium. Stay tuned for further details.

2015 RERTR Meeting

The 2015 International RERTR Meeting (RERTR-2015) took place in Seoul, Korea on Oct. 11-14, 2015.
For more information visit RERTR-2015.

Links


ARGONNE NATIONAL LABORATORY, Nuclear Engineering Division, RERTR Department
9700 South Cass Ave., Argonne, IL 60439-4814
A U.S. Department of Energy laboratory managed by UChicago Argonne, LLC
 

Last modified on July 29, 2008 11:34 +0200