کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
628685 | 1455492 | 2006 | 7 صفحه PDF | دانلود رایگان |
The effect of organic diluents on the extraction of Sr(II) from an aqueous nitrate medium (containing a mixture of 2.0 M Al(NO3)3 + 0.5 M HNO3) using di-tert-butylcyclohexano 18 crown 6 (DTBCH18C6) as the extractant was investigated. The diluent effect on the Sr(II) transport rates across supported liquid membranes (SLM) containing DTBCH18C6/diluent as the carrier was also investigated. Though diluents containing DTBCH18C6 alone have shown moderate transport rates, their 1:1 mixture with 1-octanol has shown significant enhancement in transport rates: a 1:1 chloroform–octanol mixture resulted in the highest distribution ratio values though the transport rates were at maximum with a tert-butyl benzene–octanol mixture. The extractability of the metal ion was correlated with Schmidt’s diluent parameter.
Journal: Desalination - Volume 198, Issues 1–3, 30 October 2006, Pages 166-172