Facilitated transport of Hg(II) through novel activated composite membranes
作者： M. E. P�ez-Hern�ndez , K. Aguilar-Arteaga , M. Valiente , M. T. Ram�rez-Silva , M. Romero-Romo
DOI: 10.1007/S00216-004-2756-1
关键词:
摘要: The results presented in this work deal with the prime application of activated composite membranes (ACMs) for transport Hg(II) ions a continuous extraction-re-extraction system using di-(2-ethylhexyl)dithiophosphoric acid (DTPA) as carrier. effects variables such pH, nature and concentration casting solutions on are also investigated. When ACM was prepared 0.5 M DTPA solution when feed contained 2.5x10(-4) 0.1 HCl, amount mercury extracted greater than 76%. re-extracted subsequently recovered by means stripping phase comprising 0.3 thiourea 2 H2SO4, yielding 54% initial after had taken place 180 min.
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