کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
635913 | 1456119 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Liquid-liquid extraction and transport across supported liquid membrane of phenol using tributyl phosphate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Firstly, the liquid-liquid extraction of phenol with mixture of TBP and hexane, 2-octanol, or kerosene was investigated. The addition of TBP improves the extraction efficiency and more than 90% of phenol was extracted after only 3 min of contact with tested mixtures. Secondly, taking into consideration the obtained results, the transport of phenol across a flat-sheet SLM (FSSLM) containing 20% (v/v) TBP in kerosene as liquid membrane phase was studied. Several operational variables such as TBP concentration, source solution pH, initial phenol concentration, stripping reagent (NaOH) concentration and polymeric support type were examined. Under optimum conditions, an initial flux value of 1.4 Ã 10â5 mol mâ2 sâ1 has been determined. Finally, the stability of the SLM system was checked. The system can be considered as stable using polyvinylidene difluoride (PVDF) as a polymeric support since only a 17% decline in the transport efficiency was observed after 3 days of continuous run.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 360, Issues 1â2, 15 September 2010, Pages 334-340
Journal: Journal of Membrane Science - Volume 360, Issues 1â2, 15 September 2010, Pages 334-340
نویسندگان
Chiraz Zidi, Rafik Tayeb, Mourad Ben Sik Ali, Mahmoud Dhahbi,