中文摘要：

回流比，水增加和在在真空蒸馏期间的钽乙醇盐的纯净和收益上的乙醇的水的内容的效果在 1 kPa， 210 230 ° C 的油洗澡温度，和 190 ° C 的插头温度的压力的运作的条件下面被调查。冷凝物样品被 FTIR， 1H-NMR 光谱学和拉曼系列分别地描绘。在样品的钽，碳和氢的内容也与元素的分析仪器被决定。获得的结果一致地证明冷凝物是钽乙醇盐。杂质的内容例如艾尔，作为， Ca ，公司， Cr ， Cu ， Fe ， K ， Mg ， Mn ，瞬间， Na ， Ni ， Pb ， Sn ， Ti ， V 和 Zn ，在钽乙醇盐是不到 0.000 05%，当 Nb 内容是不到 0.000 时5%。在钽乙醇盐样品的杂质的内容为 Ta (OC2H5 ) 胜过 Epichem 组的要求的 99.999% 中的 5 个。

英文摘要：

Effects of reflux ratio, water addition and content of water in ethanol on the purity and yield of tantalum ethoxide during vacuum distillation were investigated under the operational conditions of pressure of 1kPa, oil bath temperature of 210-230 ℃, and outlet temperature of 190℃. The condensate sample was characterized by FTIR, 1↑H-NMR spectroscopy and Raman spectra, respectively. The contents of tantalum, carbon and hydrogen in the sample were also determined with elemental analysis instrument. The obtained results consistently demonstrate that the condensate is tantalum ethoxide. The content of impurity, such as Al, As, Ca, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, Pb, Sn, Ti, V and Zn, in tantalum ethoxide is less than 0.000 05%, while Nb content is less than 0.000 5%. The content of impurities in tantalum ethoxide sample excels that of Epichem Group＇s requirement for Ta（OC2H5）5 of 99.999%.