in neat (no solvent) calcination of purified ZrO2 in CCl4/Cl2 at 550-600°C in a porcelain tube, covered with asbestos, in iron tube; precipitation of the product at the colder part of the tube;; sublimation of ZrCl4 in a slow stream of gas at 140°C;;
参考文献
Journal of the Chemical Society, , vol. 125, p. 1252 - 1261
char coal in neat (no solvent) briquetting with a tenfold excess of char coal; heating the dry briquets at 600-650°C in stream of dry Cl2;; condensation of ZrCl4 in spherical condenser;;
in neat (no solvent) heating in a stream of gaseous SiCl4 in a porcelain tube; precipition of ZrCl4 in the condenser, Zr silicate is remaining in the tube;;
参考文献
Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, , vol. 75, p. 1819 - 1821
