Patent ID: 6451274
Filing Date: 2002-09-17
Classification: C01B,C01F,C01G,C01P

Abstract:
A depleted UF6 processing plant comprising:a first fluidized bed reactor having at least one plate and configured to react depleted UF6 with steam at a temperature of 230 to 280Â° C. and produce UO2F2 and hydrogen fluoride, the at least one plate forming a plurality of communicated chambers in the first fluidized bed reactor; a second fluidized bed reactor having at least one plate, connected to the first fluidized bed reactor and configured to react the UO2F2 with steam at a temperature of 600 to 700Â° C. and produce U3O8, hydrogen fluoride and oxygen, the at least one plate forming a plurality of communicated chambers in the second fluidized bed reactor; and a fluorine fixing reactor including granular calcium carbonate and connected to the first and second fluidized bed reactors, the fluorine fixing reactor being configured to react the hydrogen fluoride generated in the first and second fluidized bed reactors with the granular calcium carbonate at a temperature of 150 to 300Â° C. and produce granular calcium fluoride.