| 摘要 |
FIELD: chemistry.SUBSTANCE: method of separating zirconium and hafnium tetrachlorides by extractive rectification includes blending carrier-extractant with mixture ZrCl+HfCl, fusion of charge with obtaining homogenous melt, evaporation of zirconium and hafnium tetrachlorides from melt, condensation of hafnium-enriched steam in form of sublimate. As carrier-extractant applied is LiCl-AlCl, and evaporation of zirconium and hafnium tetrachlorides from melt is realised at temperature 320°C or 450°C.EFFECT: increase of comparative volatility of zirconium and hafnium chlorides in separation of zirconium and hafnium tetrachlorides from mixture of their chlorides by extractive rectification.2 tbl, 3 ex |
