Phosphate slurry RTD - Effect of the radiotracer choice.
To determine residence time distribution (RTD) in the phosphate treatment reactor we apply radiotracer method. However this method becomes effective and profitable only if the radiotracer is the suitable one. The problem to resolve in our study is "which phase of the phosphate slurry our injected radiotracer is following?". For that we add radiotracer to the phosphate slurry and we proceed to phase separation using a filtration system. We follow simultaneously -using appropriate detectors- the behavior and the quantity of the radiotracer in both phases during the separation stage. The same experiment is applied twice using successively (99m)Tc and (131)I radiotracers. The comparative study proves that (131)I is more suitable than (99m)Tc for solid phase labeling of phosphate slurry.
Centre National des Sciences et Technologies Nucléaires, (CNSTN), Pôle technologique, 2020 Sidi Thabet, Tunisia. Electronic address: haifa.abdelwahed@cnstn.rnrt.tn.
Haïfa
H
Ben Abdelouahed
Centre National des Sciences et Technologies Nucléaires, (CNSTN), Pôle technologique, 2020 Sidi Thabet, Tunisia. Electronic address: n.reguigui@cnstn.rnrt.tn.
Nafaa
N
Reguigui
Groupe Chimique Tunisien (GCT), Direction de Recherches, Usine de DAP, BP 72, Gabes 6000, Tunisia. Electronic address: abbes.nour85@gmail.com.
Nour Eddine
NE
Abbes
Industrial radiotracer; Phosphate slurry labeling; Residence time distribution