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调节剂对烷基水杨醛肟萃取铜铁的影响
引用本文:吕文东,陈志武.调节剂对烷基水杨醛肟萃取铜铁的影响[J].广东有色金属学报,2003,13(1):60-63.
作者姓名:吕文东  陈志武
作者单位:广州有色金属研究院精细化工开发中心,广州有色金属研究院精细化工开发中心 广东 广州 510651,广东 广州 510651
摘    要:烷基水杨醛肟虽然是一种高选择性的铜萃取剂,但单独使用时,萃取相易出现沉淀;反萃时,再生有机相出现乳化物,而且两相分离时间较长.将月桂醇、仲辛醇、壬基酚三种调节剂分别加入到萃取剂中,研究其对烷基水杨醛肟萃取及反萃行为的影响.结果表明,三种调节剂均可以解决上述问题,只是使萃取能力略有降低;壬基酚加入到烷基水杨醛肟中有助于提高铜铁分离系数,可达647.

关 键 词:萃取      调节剂  烷基水杨醛肟  铜萃取剂

Influence of modifier on extraction behavior of the alkylsalicylaldoxime
LU Wen-dong,CHENG Zhi-wu Research and Development Center of Fine Chemicals,Guangzhou Research Institute of Non-ferrous Metals,Guangzhou ,China.Influence of modifier on extraction behavior of the alkylsalicylaldoxime[J].Journal of Guangdong Non-Ferrous Metals,2003,13(1):60-63.
Authors:LU Wen-dong  CHENG Zhi-wu Research and Development Center of Fine Chemicals  Guangzhou Research Institute of Non-ferrous Metals  Guangzhou  China
Affiliation:LU Wen-dong,CHENG Zhi-wu Research and Development Center of Fine Chemicals,Guangzhou Research Institute of Non-ferrous Metals,Guangzhou 510651,China
Abstract:The alkylsalicylaldoxime is a kind of copper--extractant with a high selectivity. When only the alkysalicylaldoxime is used in extraction, a precipitate is formed in extraction phase, and an emulsion is formed in regenerated organic phase in back-extraction process with a long separation time. The influence of three different modifiers on extraction and back--extraction behavior of the alkylsalicylaldoxime is studied. The results show that lauryl alcohol, sec--octylalcohol, nonylphenol could avoid the precipitate in extraction process and the emulsion in back--extraction process, but the extraction ability is slightly decreased. When adding nonylphenol to nonylsalicylaldoxime, the copper/iron seperation coefficient is improved and the peak value can be up to 647.
Keywords:modifier  alkylsalicylaldoxime  copper  iron  extraction  
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