Process for the preparation of porous products based on cobalt fluoride or lead fluoride

摘要

the preparation of cobalt invention.concerne fluoride cof2 or lead fluoride pbf2 has a high specific surface area.;according to the invention is a powder of cobalt fluoride having a specific surface area of 10 to 120 m2 / g and a powder of lead fluoride having a specific surface area of 4 m2 / g by decomposing thermally the most most of cobalt and lead.the thermal decomposition can be carried out after having impregnated alumina balls; a solution to most of lead and cobalt, which makes it possible to obtain logs loaded fluoride fluoride, lead and cobalt.;cobalt fluoride beads which can be used as a reducing agent for the purification of uranium hexafluoride containing trace amounts of plutonium hexafluoride sf6 or neptunium.