ADSORBING MATERIAL LOADED WITH IODIDE SALT USEFUL FOR TRAPPING RADIOACTIVE IODINE FROM GAS-STATED IODINE COMPOUNDS BY ISOTOPIC IODINE SUBSTITUTION

摘要

The present invention relates to an adsorbent material useful for trapping radioactive iodine of iodinated compounds in the gaseous state by isotopic substitution comprising a zeolite having a Si / Al molar ratio and a particular pore opening, said zeolite being charged with salt d 'iodide selected from an alkali metal salt, an alkaline earth metal salt or a quaternary ammonium salt, preferably the iodide salt is potassium iodide (KI). It also relates to a process for trapping radioactive iodine of iodinated compounds in gaseous form by isotopic substitution of iodine of said adsorbent material loaded with iodide salt as well as a process for preparing an adsorbent material according to the first object of the invention. 'invention.