钯在乙醇水溶液中与钌、银、铜和铅的析相绿色萃取分离  

Green Extraction and Separation of Pd from Ru,Ag,Cu and Pb in Ethanol.Aqueous Solution by Phase Separation

作　　者：宋世林[1] 司学芝[2] 李昆蓬[1] 马万山[1] 

机构地区：[1]信阳师范学院化学化工学院,河南省信阳市长安路237号464000 [2]河南工业大学化学化工学院,郑州市450052

出　　处：《光谱实验室》2012年第4期2422-2424,共3页Chinese Journal of Spectroscopy Laboratory

基　　金：河南省教育厅自然科学研究计划项目(2006150023)

摘　　要：在硫酸铵存在下,乙醇水溶液能够分为醇/水两相,在分相过程中,Pd^(2+)与KBr和C_2H_5OH_2^+生成的[PdBr_4^(2-)][C2HsOH-2^+]_2三元缔合物能被乙醇相萃取,使Pd^(2+)与Ru^(2+)、Ag^+、Cu^(2+)和Pb^(2+)完全分离。该法在微量钯的分离和富集分析中有一定的实用价值。The ethanol aqueous solution could be well divided into ethanol/water two phases in the presence of ammonium sulphate,and the ternary compound[PdBr42-][C2H5OH2＋]2 was formed by C2H5OH^2＋,Pd^2＋ and potassium bromide,that could be completely extracted during the dividing phase process,and Pd^2＋ could be entirely separated from Ru^3＋,Ag^＋,Cu^2＋ and Pb^2＋ by extraction.This method has the contain value for separation and enrichment of trace palladium.

关 键 词：钯 乙醇 溴化钾 萃取分离 

分 类 号：O657.32[理学—分析化学] O652.62[理学—化学]