ADSORBING AND ION EXCHANGE MATERIAL FOR STRONTIUM IN AQUEOUS SOLUTION AND METHOD FOR FIXING STRONTIUM

摘要

PURPOSE:To adsorb strontium efficiently as well as to reduce an exudation ratio thereof by using titania hydrate obtained by extracting a K2O component from potassium titanate as the adsorbing agent of strontium in the aqueous solution. CONSTITUTION:As the adsorbing and ion exchange material of strontium in the aqueous solution, titania hydrate TiO2.mH2O (wherein m is 0-3) obtained by extracting the K2O component from potassium titanate K2O.nTiO2 (wherein n is 2-4) is used. Said titania hydrate has high absorbing or ion exchange property against strontium as well as the exudation ratio of the solidified strontium is low.