聚硫（氧）醚类低聚物对贵金属的萃取性能 Ⅱ.对多元金属离子混合体系的萃取选择性

聚硫（氧）醚类低聚物对贵金属的萃取性能 Ⅱ.对多元金属离子混合体系的萃取选择性 EXTRACTION PROPERTIES OF POLYTHIOETHERS AND POLYETHERS FOR NOBLE METALS Ⅱ. EXTRACTION SELECTIVITY OF OLIGOMER-EXTRACTANTS FOR MIXTURES CONTAINING NOBLE METALS 徐羽梧 Xu Yuwu 1 2 3 first-author 徐锋 Xu Feng 1 2 3 武汉大学化学系 武汉大学化学系 Department of Chemistry,Wuhan University Department of Chemistry,Wuhan University 武汉大学化学系,武汉 武汉大学化学系,武汉 ,430072 ,430072 本文研究了几种聚硫醚或聚氧醚为主链,在侧链上带不同取代基的低聚物作为萃取剂对某些贵金属—非贵金属离子混合体系和二种或三种贵金属离子混合体系的萃取选择性,先后使用聚氧醚和聚硫醚进行分步萃取,较好地实现了金-钯-铂体系中三个组份的分离。 Extraction selectivity of some oligomer-extraetants having polythioether or polyether main chain and various functional groups in side chain for mixtures containing noble metal ions was studied. Au（Ⅲ）can be dominantly extracted from Au（Ⅲ）-Pd（Ⅱ）mixture by both PSO1and PO2,and the latter is more effective and can leave Pd（Ⅱ）intact when used in separation from Au（Ⅲ）-Pd （Ⅱ）. Pd（Ⅱ）Can be completely extracted and Separated from Pd（Ⅱ）-Pt（Ⅳ）mixfure by PSO2. The separation of Au（Ⅲ）-Pd（Ⅱ）-Pt（Ⅳ） can be achived by the first use of PO2 to extract Au（Ⅲ）from the mixture and then the use of PSO2 to extract Pd（Ⅱ）from the rest Pd（Ⅱ）-Pt（Ⅳ） mixture. 聚硫醚 聚氧醚 低聚物萃取剂 贵金属 萃取选择性 polythioether polyether oLigomer-extractant noble metal extraction selectivity O623.82;O632.32 国家自然科学基金(61672102) 1993-03-01 2021-04-01 3