Process for the preparation of uranium tetrafluoride and sulfur fluorides by reduction of uranium hexafluoride.

摘要

the invention is directed to a process for the preparation of uranium tetrafluoride by reduction in gazeuze uranium hexafluoride.;according to the invention, using a reducing agent comprising:1) - or sulfur vapor with at least a halogen and / or a halide selected from clu2082, bru2082, su2082fu2082, sclu2082, su2082clu2082 and su2082bru2082 (2) is at least one selected from among su2082fu2082 sulfur halide, sclu2082, su2082clu2082 and su2082bru2082, quantities such as the total number of al moles of sulfur atoms present in the reaction of reduction in the number of moles of molecules of ufu2086 (s) / (ufu2086)shall be not less than 0.6.;through the choice of the sulphur reducing agents, the product of uranium tetrafluoride for quality and purity.