کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
628433 1455484 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Removal of N,N-dimethylaniline from a dilute aqueous solution by Na+/K+ saturated montmorillonite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Removal of N,N-dimethylaniline from a dilute aqueous solution by Na+/K+ saturated montmorillonite
چکیده انگلیسی

Both inorganic and organic modified montmorillonite with diethylamine was used to adsorb N, N-dimethylaniline from water. The aim of this work was the use of montmorillonite clays, saturated first with sodium/potassium chloride and, second, exchanged with diethylamine, as a sorbent for purifying N,N-dimethylaniline contaminated water. Diethylamine was protonated in situ with HCl to obtain diethylammonium cations. Water and water/methanolmixture were used as reaction medium, and the ratios amine/clay and HCl/amine were also varied. Optimal results were obtained for an amine/clay ratio of 0.12 mmol/g. For a given amine/clay ratio, the HCl/amine ratio influences the interaction. The results will provide valuable information on using inorganic and organic modified montmorillonitefor removing hazardous pollutants such as aromatic amines. The effect of pH and Na+/K+ exchange on the adsorptive behaviour of montmorillonite clay was examined.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 206, Issues 1–3, 5 February 2007, Pages 300-310