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本文研究了二(2-乙基己基)亚砜萃取剂对盐酸体系中钯、铂的萃取性能。结果表明:在适当的酸度下使用该萃取剂能达到钯、铂定量萃取和分离的目的;它对钯的萃取饱和容量很高;且加入象N_(1923),N_(263)等添加剂后不仅可使萃取加速进行,而且还可进一步提高萃取率;以硫脲作为反萃剂可使萃取剂反复使用,实验证明,二(2-乙基己基)亚砜的煤油溶液具有良好的再生性能。
In this paper, the extraction performance of bis (2-ethylhexyl) sulfoxide extractant for palladium and platinum in hydrochloric acid was studied. The results show that Pd and Pt can be extracted quantitatively and separated by using this extractant under the proper acidity. The extraction capacity of palladium is very high. Adding additives such as N_ (1923) and N_ (263) Can accelerate the extraction, but also can further improve the extraction rate; Thiourea as a stripping agent can be repeatedly used extractant, the experiment proved that, two (2-ethylhexyl) sulfoxide kerosene solution has good regeneration performance.