کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6659361 | 1425764 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A study on novel reactive oily bubble technology enhanced collophane flotation
ترجمه فارسی عنوان
مطالعه ای بر روی تکنولوژی حباب های نفتی واکنش پذیری پیشرفته فلوتاسیون کلافیان را افزایش داد
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کلمات کلیدی
حباب نفتی واکنش دهنده، اسیدهای چرب، کلوفان، شناور
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Collophane is an important phosphate mineral, which has proven to be difficult to float from gangue. In this work, the novel application of reactive oily bubbles to enhance collophane flotation is reported. Three different types of bubbles, conventional air bubble, oily bubbles (kerosene only) and reactive oily bubbles (kerosene containing fatty acids) approaching collophane particles were studied by measurements of zeta potential, induction time and contact angle. The reactive oily bubble shows negligible effects on the zeta potential of collophane particles. A shorter induction time of reactive oily bubble was found at pHÂ 6.0 and/or at pHÂ 9.0 relative to the conventional air bubbles and the oily bubbles. This suggests a strong collection power of reactive oily bubble. Advancing contact angles of the reactive oily bubble on collophane increased dramatically with pH. At pHÂ 9.0, a contact angle of 120 degrees was observed where the reactive oily bubble flotation is anticipated. Micro-flotation results demonstrate the superiority of reactive oily bubbles over air bubbles for collophane flotation. A concentrate containing 35.67% of P2O5 and 0.39% of MgO was obtained using reactive oily bubble flotation at pHÂ 9.0. Micro-flotation results also show that Ca2Â + and Mg2Â + ions have a negative effect on the collophane flotation, but the effect of reactive oily bubble system is smaller than that of air bubble system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mineral Processing - Volume 169, 10 December 2017, Pages 85-90
Journal: International Journal of Mineral Processing - Volume 169, 10 December 2017, Pages 85-90
نویسندگان
Fang Zhou, Louxiang Wang, Zhenghe Xu, Yaoyang Ruan, Ruan Chi,