New Uranium(VI) Complexes with Macrocyclic Schiff Bases and Their Derivatives

摘要

An important environmental problem faced by modern radiochemistry is processing of radioactive waste (RW) accumulated both in the manufacture of nuclear weapons and during operation of nuclear power plants.The experience in practical RW processing shows that liquid extraction is the most effective technique for pre-concentration,separation,and isolation of radioactive elements.Considerable progress has been achieved in this field in recent years both in Russia and abroad:effective extraction processes for treatment of liquid nitric acid RW with the use of effective chelating agents based on carbamoylmethyl phosphonates (Truex process),malonamides (Diamex process),and other compounds have been developed [1-3].