کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
275638 1429553 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activation flotation and mechanism of lime-depressed pyrite with oxalic acid
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
Activation flotation and mechanism of lime-depressed pyrite with oxalic acid
چکیده انگلیسی

Flotation tests, contact angle measurements, infrared spectrum analyses, X-ray analyses and computer simulation were carried out in order to study the activation mechanism of lime-depressed pyrite with oxalic acid. The results show that the oxalic acid effectively eliminated the hydrophilic calcium film from the surface of pyrite. Therefore, the efficiency of pyrite flotation was also activated. The results indicate that after reacting with hydrophobic insoluble remainders on the surface of pyrite, oxalic acid can produce hydrophilic compounds, such as CaCO3, Ca(OH)2 and Fe(OH)3. As a consequence, a fresh pyrite layer was exposed and its flotation activated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mining Science and Technology - Volume 22, Issue 1, January 2012, Pages 63–67
نویسندگان
, , ,