Selective Recovery of Metals in Gold Refining Processes using Adsorbents.

金矿石加工包括破碎、磨矿、氰化浸出、矿浆碳回收和电积。这种方法是大多数这类行业使用的主要金分离程序之一，矿石中其他金属离子在上下游过程中的干扰对生产过程的效率有很大影响。在下游(尾矿)过程中存在大量的重金属离子。这已被确定为需要克服的挑战。在浸出前或浸出后的上游过程中选择性地去除金矿石中的金属离子，将显著提高黄金质量。分离这些金属离子可能会产生具有经济价值的副产品。我们计划开发和使用新的吸附剂，专门从含有金属离子混合物的溶液中回收有价值的金属。从金矿生产线上选择性地回收一些金属离子也将改善加工和生产成本。这将提高黄金的产量和质量。在浸出前或在精炼前的浸出后立即去除干扰金属离子将提高黄金回收率，并将为公司和当地经济带来额外收入，因为这些金属有自己的市场。计划中的程序还将改善废水处理出水的质量。在这项研究中，将开发一种新型的环境友好型吸附剂，能够选择性地吸附复杂金属离子混合物中的重金属。Goldcorp的马斯利怀特部门非常热衷于解决干扰金属离子的问题，以提高其工艺效率，并可能从中获得经济利益。我们的初步研究表明，新型吸附剂在实验室模型样品上是有效的。

Gold ore processing includes crushing, grinding, leaching by cyanidation, carbon in pulp recovery andelectrowinning. This method is one of the major gold separation procedures used by most such industries.Interference of other metal ions in the ore in upstream and downstream processes has a significant effect on theproduction process efficiency. A substantial amount of heavy metal ions is present in the downstream (tailing)process. This has been identified as a challenge that needs to be overcome. Selective removal of the metal ionsfrom the gold ore in the upstream process before leaching or after leaching will significantly improve goldquality. Separation of these metal ions can lead to a by-product of economic value. We plan to develop and usenovel adsorbents that can specifically recover valuable metals from solution containing mixture of metal ions.Selective recovery of some metal ions from the production line of gold ore will also improve the processingand cost of production. It will enhance the yield and the quality of gold. Interfering metal ions removal beforeleaching or immediately after leaching before refining will enhance gold recovery and will lead to additionalrevenues for the company and the local economy as these metals have a market of their own. The plannedprocedure will also improve the quality of the effluents from the wastewater treatment. In this study, novelenvironmentally friendly adsorbents capable of selective adsorption of heavy metal in a complex mixture ofmetal ions will be developed. The Musslewhite unit of Goldcorp is very keen to address interfering metal ionsissues to increase the efficiency of their process and potentially derive financial benefits from the same. Ourpreliminary studies have shown the novel adsorbents to be effective on laboratory model samples.