21. What is " Fractional Solvent Extraction "? 22. It is prepared by solvent extraction from the mixed lanthanides isolated from bastn�site ( or monazite ). 23. In Turkey, a water extraction process is used, while in Tasmania, a solvent extraction process is used. 24. The synthesis of the BTBPs as solvent extraction reagents was a development of the chemistry at axial sites. 25. The absolute may be further processed to remove any impurities that are still present from the solvent extraction . 26. Special use in nuclear industries for fuel reprocessing, where spent fuel from reactors is subjected to solvent extraction . 27. Seedlac which still contains 3 5 % impurities is processed into "'shellac "'by heat treatment or solvent extraction . 28. Such carbonate concentrates can be treated by a solvent extraction and electrowinning ( SX-EW ) plant or smelted. 29. Solvent extraction and electrowinning ( SX / EW ) operations started in 1988 and have run continuously since.30. The nonvolatile alkaline fission products and minor actinides is most suitable for further processing with'dry'SANEX, which use solvent extraction .
