... 金属真空除气 metal vacuum degassing 金属真空蒸馏 metal vacuum distillation 化学反应真空精炼 chemical recation vacuum refining ...
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Purifying selenium by vacuum distillation. Metal selenium purification is on the base of different elemental volatility.
真空蒸馏提纯硒利用元素的挥发性不同进行金属硒的提纯。
The results showed that the heavy metal cadmium could be effectively separated by vacuum distillation to produce high purity cadmium (>99%).
实验结果表明：利用真空蒸馏可以实现镍镉电池中镉与其它金属的有效分离，并得到纯度大于99%的金属镉；
The theory and technics of recovering metal zinc from the hot galvanizing scrap by vacuum distillation are discussed. The calculation and industrial experiment show the feasibility of this method.
本文对热镀锌渣真空蒸馏回收金属锌的原理和工艺进行探讨，理论计算和工业试验均证实该法的可行性。
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