کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9685104 1456223 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pervaporation of fluoroethanol/water and methacrylic acid/water mixtures through PVA composite membranes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Pervaporation of fluoroethanol/water and methacrylic acid/water mixtures through PVA composite membranes
چکیده انگلیسی
2,2,2-Trifluoroethyl methacrylate (TFEMA) is used in the preparation of functional water-repellent paints and optical fiber coating agents, and is manufactured by esterification of 2,2,2-trifluoroethanol (TFEA) and methacrylic acid (MA) via a dehydration process using azeotropic distillation. To substitute for the hazardous dehydration process, composite-type PVA pervaporation membranes were prepared using glutaraldehyde on a porous polyethersulfone support and their basic pervaporation properties were determined for TFEA/water and MA/water mixtures. The effect of the degree of crosslinking agent, feed concentration, and operating temperature on the pervaporation properties was determined. The PVA composite membranes showed excellent dehydration performances that are suitable for application to the esterification of TFEMA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 247, Issues 1–2, 1 February 2005, Pages 51-57
نویسندگان
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