کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7043654 1456916 2018 24 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ionic liquid-based sugaring-out and salting-out extraction of succinic acid
ترجمه فارسی عنوان
استخراج اسید بنچنیکیک با استفاده از مایع یونیک
کلمات کلیدی
مایعات یونی، استخراج قصابی، استخراج سالم، سوکسینیک اسید، بازیافت مایع یونی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
In this study, ionic liquids-based salting-out extraction and sugaring-out extraction were developed to extract succinic acid. Among these five investigated ionic liquids, the ionic liquid with BF4- and OTF− anion showed the ability to form two phases not only with glucose but also with salts. However, the ionic liquid with Br− anion cannot form aqueous two-phase system with glucose, but with salts. Relatively high extractabilities were obtained by ILs-based salting-out extraction systems compared to sugaring-out systems. The extraction efficiency values ranging between 47% and 86% were obtained when succinic acid concentration increased from 5 g/L to 70 g/L in [Bmim]BF4/(NH4)2SO4 systems. It was implied that succinic acid concentration was a key factor in ILs-based salting-out extraction system. Compared to salting-out extraction, sugaring-out extraction was more suitable for succinic acid separation due to the bottom phase reutilization to achieve coupling of fermentation and separation. The distribution behavior of succinic acid in [Bmim]BF4/glucose sugaring-out extraction system depends on not only the concentrations of ionic liquid and glucose, but also the pH. The partition coefficient (2.53) and recovery (75.96%) of succinic acid were obtained by a sugaring-out system consisting of 45% (w/w) [Bmim]BF4 and 30% (w/w) glucose at pH 2.0. Moreover, to support the applicability of ILs-based sugaring-out extraction for SA separation, the most prominent systems were further tested with actual fermentation broth. The extraction efficiencies were 73.71% and 72.53% for filtered and unfiltered fermentation broth, respectively. The remarkable results obtained in this work support the establishment of IL-based sugaring-out extraction as a sound basis of greener cost-effective strategies with a substantial reduction in the environmental footprint and economical issues.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 204, 2 October 2018, Pages 133-140
نویسندگان
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