Method for selectively removing fluorine and fluorine-containing contaminants from gaseous UF6

摘要

This invention is a method for effecting preferential removal and immobilization of certain gaseous contaminants from gaseous UF6. The contaminants include fluorine and fluorides which are more reactive with CaCO3 than is UF6. The method comprises contacting the contaminant-carrying UF6 with particulate CaCO3 at a temperature effecting reaction of the contaminant and the CaCO3.