کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10280043 465462 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A review of pyrrhotite flotation chemistry in the processing of PGM ores
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A review of pyrrhotite flotation chemistry in the processing of PGM ores
چکیده انگلیسی
Thermodynamically pyrrhotite is not stable and reacts relatively quickly with its environment. Natural/collectorless flotation of pyrrhotite is observed only under a low oxidation potential in acidic solution. Its surface is easily oxidized to ferric hydroxide/oxide under conventional flotation conditions, creating a hydrophilic state at the pyrrhotite surface and low flotation recovery even though xanthate collectors can be adsorbed. Under these conditions, activation by copper is not easily achieved. These observations reported in the literature have been confirmed by captive bubble contact angle measurements. Based on the analysis of previous research, conditions for improved pyrrhotite flotation and increased PGM recovery are suggested.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 18, Issue 8, July 2005, Pages 855-865
نویسندگان
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