研究了以钌铱钛合金网和汞分别为阳、阴电极,在无气氛保护条件下,采用电解还原方法从铥、镱、镥硫酸盐溶液中分离提纯镱的过程。讨论了在8 V恒电压时的电极间距、位置,以及阴、阳极表面积对电解过程中的电流、还原率影响。优化了电解还原过程,YbSO4产品的纯度稳定达到99.5%以上,一次收率可达80%;提镱后母液中的铥和镥被富集4倍以上,其中Lu含量高于50%,十分有利于后续铥/镥分离。 The process of separating and purifying ytterbium from 铥, ytterbium, and 镥 sulfate solutions by electrolytic reduction with ruthenium-iridium-titanium alloy network and mercury as anode and cathode respectively under the protection of no atmosphere was studied. The effects of electrode spacing, position, and surface area of ​​anode and cathode on current and reduction rate during electrolysis are discussed. Optimized the electrolytic reduction process, YbSO4 purity of the product reached more than 99.5%, a yield of up to 80%; after mentioning ytterbium mother liquor was enriched more than 4 times, of which Lu content higher than 50%, very Conducive to follow-up 铥 / 镥 separation.