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Flotation circuit efficiency improvement at Northern Star Resources Limited's Kanowna Belle gold mine

机译：北极星资源有限公司的Kanowna Belle Gold Mine的浮选电路效率改进

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The Kanowna Belle gold mine is located in the Eastern Goldfields of Western Australia, approximately 18 km north-east of Kalgoorlie. The processing plant is designed to process 2 Mt/y and has the capability to treat both refractory and free milling ore from the Kanowna Belle and Kundana mining operations.The Kanowna Belle ore is refractory with the gold mineralisation occurring mostly as fine-grained inclusions in pyrite or as very fine-grained gold located in pyritic arsenic rich growth zones. The Kanowna Belle refractory process includes flotation, roasting of the flotation concentrate, and calcine leaching to extract the gold from the ore.Mineralogical analysis of feed and tailings streams from the flotation circuit have shown that the gold bearing minerals are well liberated and confirmed they are mainly associated with pyrite. Nearly 40% of the flotation circuit losses are in the -38 um size fraction. To improve the flotation circuit recovery, the fine particle gold recovery was targeted. A Cavitation Tube column was selected for the site-based pilot test work program. This paper presents data generated from the on-site test work, and the benefits of the Cavitation Tube column to improve fine particle flotation.
机译：Kanowna Belle Gold Mine位于西澳大利亚州西澳大利亚东部，大约18公里的Kalgoorlie。加工厂设计用于处理2 MT / Y，具有从Kanowna Belle和Kundana采矿业务处理耐火材料和自由铣削矿石的能力。Kanowna Belle Oree是黄金矿化的难治性，主要是细粒夹杂物硫铁矿或作为非常细粒度的金，位于富含Pyritic砷的生长区。 Kanowna Belle耐火材料过程包括浮选，浮选浓缩物的烘烤，并从浮选电路中提取来自矿石的矿石的煅烧浸出。从浮选电路的饲料和尾矿流中的分析表明，金轴承矿物良好释放并确认它们是主要与黄铁矿有关。近40％的浮选电路损耗位于-38μm尺寸分数。为了提高浮选回路恢复，靶向细颗粒金回收率。选择了一种空化管柱，用于基于现场的试验性测试工作计划。本文介绍了从现场测试工作产生的数据，以及空化管柱的益处，以改善细颗粒浮选。

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