提出了结合化工单元操作－溶剂萃取，实现金属氧化物超细粉制备的新方法，选择磷酸三丁酯（ＴＢＰ）－煤油－盐酸的工业化萃Ｚｒ体系，实验确定了反向胶团溶液形成的条件，即高酸度及相对较高的萃取金属离子浓废，并以氨水为沉淀剂使之与反向胶团溶液反应，将沉淀物洗涤干燥焙烧，得到粒径１０ｎｍ单分散的ＺｒＯ_２粉
A new method for synthesizing ultrafine metal oxide powders was presented in combination with solvent extraction. The extraction system used for Zr in HCl solution was selected based on industrial practice with tri-n-butyl phosphate(TBP) as extractant and kerosene as diluent. Conditions used to obtain reversed micellar solution were experimentally determined, i.e. high aqueous acidity and relatively high metal ion concentration. The micellar solution was then used to react with aqueous ammonia to produce precipitate followed by washing, drying and calcining of the precipitate, monodispersed ZrO_2 powders with an average diameter of 10 nm were obtained.
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