کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1639618 1517043 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of Al(OH)3 by ion membrane electrolysis and precipitation of sodium aluminate solution with seeds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Preparation of Al(OH)3 by ion membrane electrolysis and precipitation of sodium aluminate solution with seeds
چکیده انگلیسی

The preparation of Al(OH)3 by the ion exchange membrane electrolysis followed by the precipitation of sodium aluminate solution with seeds was made. During the process of ion membrane electrolysis, the sodium aluminate solution is rapidly acidified and the caustic ratio (aK) is decreased due to oxygen evolution in the anodic region. And the causticity of solution is increased due to hydrogen evolution in the cathode region, producing the high concentration of caustic soda solution. Regulating the acidity of the anodic solution by controlling the electric quantity in the electrolysis and subsequent decomposing the solution, Al(OH)3 could yield with very large rate and high efficiency. The experiments also indicate that the quality of aluminum hydroxide product is greatly affected by the impurity silicon.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 18, Issue 4, August 2008, Pages 974-979