Different organic solvents were investigated, separately or in mixture
for example methanol, ethanol, butanol, hexanol, octanol, TEP,D2EHPA, TBP,TOPO
and a mixture of TBP plus butanol. Among these solvents, TBP plus butanol
proved to be the most efficient solvents mixture. The effect of organic/aqueous
phase ratio, temperature, shaking time, settling time and phosphoric acid
concentration were studied. Scrubbing of the loaded organic acid was done using
4.2M pure phosphoric acid at an O/A phase ratio of 1:1 while stripping of H3PO4
was performed using distilled water of an O/A phase ratio of 3:1 in one stage.
The final recovery of the process is 97.8%. - See more at:
No comments:
Post a Comment