Processing of zirconium metal waste with producing structural materials. Part 2. A study of features of precipitation and heat treatment ammonia complexes of zirconium tetrachloride

摘要

Precipitation of solvated zirconium tetrachloride by gaseous ammonia has been studied. It was found that a complex of ZrCl_4 centre dot 8NH_3 make-up is formed which is insoluble in N,N'-dimethylformamide. Thermal destruction of the complex produced was studied. Zirconium dioxide was found to be formed during its high-temperature treatment. As it is shown it is possible to produce ceramic materials out of zirconium dioxide stabilized by yttrium oxide during the combined precipitation of zirconium and yttrium chloride ammines and their heat treatment