Investigation of the Synergistic Effect of Etheric Compounds on the Extraction of H~3PO~4 from Syrian Wet Phosphoric Acid By TBP

This paper studies the synergistic effect of etheric compounds such as diisopropylether (DIPE) and diethylether (DEE) on the extraction of H 3 PO 4 from syrian phosphoric acid by TBP. The possibility to use these etheric compounds as a diluent instead of kerosene was also studied. The results show that the etheric compounds has very small extraction yield when diluted phosphoric acid was used and the extraction yield increases rapidly by increasing the phosphoric acid concentration. The etheric compound has an important synergistic effect, when it was used as a diluent instead of kerosene, on the extraction of H 3 PO 4 by TBP and they have a bigger extraction yield and the quicker phase separation comparing with kerosene. Extraction of uranium and iron is negligible while extraction of fluorine is relatively small.