The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary

The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name.

  
       
         
    STUDIA CHEMIA - Issue no. 2 / 2012  
         
  Article:   STUDIES ON THE PALLADIUM AND GOLD IONS EXTRACTION WITH SOME ESTER DERIVATIVES OF CALIX[N]ARENE.

Authors:  ALINA SAPONAR, ELISABETH-JEANNE POPOVICI, GABRIELA NEMEŞ. 		 
       
         
  Abstract:  The capability of p-tert-butyl calix[n]arene [n = 4,6,8] functionalized at the lower rim with a variable number of ethyl acetate groups to extract palladium and gold ions from aqueous medium has been investigated. The influence of reagent molar ratio, acidity of the medium and time on the extraction efficiency was investigated by monitoring the concentration of the metallic ions from aqueous solution. In most of the cases, the half substituted calix[n]arene derivatives show a relative high extraction efficiency and are of interest as liquid-liquid extraction reagents for precious metal ions.

Keywords: Calixarene, liquid-liquid extraction, metal ions 		 
         
     
         
         
      Back to previous page