Research Progress on Mechanism of the Separation of Zirconium and Hafnium Extraction

Chemical properties of zirconium and hafnium is very similar,the extraction of zirconium and hafnium separation is main method. The mechanism of different solvent extraction separation of zirconium and hafnium was reviewed,such as MIBK extracting hafnium,( DIBK)-P204 extracting hafnium,TBP extracting zirconium,N235-H2SO4 extracting zirconium,and the mechanism of other solvent extraction system,petroleum sulfoxide,Versatic Acid10,Cyanex301,LIX 84-IC,etc. The application of relatively mature system of extraction separation of zirconium and hafnium in industrial were compared,and the promote industrialization direction of the extraction separation of zirconium and hafnium were discussed as follows: the new extractant research,extraction agent modification of existing research,minimum consumption extractant,the new extraction technology of short time extraction research.