FIELD: chemistry.
SUBSTANCE: for inactivation of alkali and/or alkaline earth metals fluorides impurities in lithium fluoride sorbent, the sorbent is treated with silicon tetrafluoride obtained by thermal decomposition of lithium hexafluorosilicate at a temperature of 175-185°C.
EFFECT: impurities of alkali or alkaline-earth metals form silicofluorides inert to uranium hexafluoride, excluding the formation of a radioactive compound in the lithium fluoride mass.
2 cl, 1 ex
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