کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6673022 465316 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Breakup and re-formation of bubble clusters in a flotation cell
ترجمه فارسی عنوان
تجزیه و بازسازی خوشه های حباب در یک سلول شناور
کلمات کلیدی
شناور اندازه حباب، خوشه حباب،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
This study is concerned with the behavior of bubble clusters in a well-controlled turbulent flow. We used a specially designed cell where the bubble aggregates could be formed and exposed to breakage by a rotating impeller. The effects of impeller speed and the concentration of collector on cluster behavior were studied. It was found that the size of the clusters increases with the concentration of collector used. We also found that although the clusters could easily be destroyed under the action of impeller, they could reform, especially at lower impeller speeds. It was observed that the size of the bubbles arriving into the impeller region in the absence of particles before breakage was considerably higher than the size of the clusters formed at the same impeller speed. It appears that both cluster breakage and re-formation take place simultaneously, and the extent of formation and regrowth is mainly determined by the hydrophobicity of the particles and the impeller speed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 71, February 2015, Pages 16-20
نویسندگان
, , ,