Thermodynamics of Extraction of Zn۲+ from Sulfuric Acid Media with a Mixture of Dehpa and Mehpa
عنوان مقاله: Thermodynamics of Extraction of Zn۲+ from Sulfuric Acid Media with a Mixture of Dehpa and Mehpa
شناسه ملی مقاله: JR_IJE-17-6_008
منتشر شده در Volume ۱۷, Issue ۲, TRANSACTIONS B: Applications در سال 1383
شناسه ملی مقاله: JR_IJE-17-6_008
منتشر شده در Volume ۱۷, Issue ۲, TRANSACTIONS B: Applications در سال 1383
مشخصات نویسندگان مقاله:
S.K. Sadrnezhaad - Materials Science and Engineering, Sharif University of Technology
Eskandar Keshavarz Alamdari - New Materials, MERC
خلاصه مقاله:
S.K. Sadrnezhaad - Materials Science and Engineering, Sharif University of Technology
Eskandar Keshavarz Alamdari - New Materials, MERC
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
کلمات کلیدی: Solvent extraction, zinc, DEHPA, MEHPA, Thermodynamics, Extraction Mechanism
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1415979/