کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
233470 465345 2013 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crushed ore agglomeration and its control for heap leach operations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Crushed ore agglomeration and its control for heap leach operations
چکیده انگلیسی

Based on the extensive experience of heap leaching operations, crushed ore agglomeration can be successfully considered and utilized as a pretreatment step for the heap leaching of ores containing significant amounts of fines and clay minerals. The drum agglomeration is considered as a pretreatment step for the heap leaching of copper and gold ores whereas the agglomeration of uranium and nickel ores has received less attention over the past years. The acceptance of binder application for acidic leaching systems is limited primarily due to the lack of acid-tolerant binders. The use of binder depends mainly upon the cost considerations, impact on recovery and safe practice. Of equal importance are the quality control and characterization tools for the agglomerates to ensure better heap performance. This paper attempts to provide a concise overview of available quality control and characterization tools for crushed ore agglomeration with industrial examples from the gold, copper, nickel and uranium operations. Consequently, different agglomeration-heap leaching systems and their differences are summarized. The requirements for effective agglomeration, characteristics for an ideal agglomerate and integrated flowsheet of crushed ore agglomeration-heap leaching system are discussed.

Figure optionsDownload as PowerPoint slideHighlights
► Crushed ore agglomeration as a pretreatment step for heap leaching is reviewed.
► The acceptance of binder is limited due to the lack of acid-tolerant binders.
► Concise overviews of quality control and characterization tools are provided.
► Different agglomeration-heap leaching systems are summarized.
► HPGR grinding-agglomeration may have some advantages.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 41, February 2013, Pages 53–70
نویسندگان
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