Thermodynamics of Extraction of Zn۲+ from Sulfuric Acid Media with a Mixture of Dehpa and Mehpa
Publish Year: 1383
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-17-6_008
تاریخ نمایه سازی: 19 اسفند 1400
Abstract:
Thermodynamics of extraction of Zn۲+ from sulfuric acid media contacting to a mixture of DEHPA and MEHPA diluted with ۸۰ wt% aromatic-aliphatic kerosene with a constant DEHPA to MEHPA ratio is investigated at different acidities, concentrations and temperatures. As a result, the extraction reaction is found to be endothermic with a zinc distribution factor that increases with increasing of the temperature, acidity of the solution and the concentration of the extractant. The mechanism of the extraction reaction is shown to be different for pH > ۱ with that at pH
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Authors
S.K. Sadrnezhaad
Materials Science and Engineering, Sharif University of Technology
Eskandar Keshavarz Alamdari
New Materials, MERC