从哥伦比亚难选矿石中回收黄金的氰化试验和预处理

Q2 Materials Science

Minerals & Metallurgical Processing Pub Date : 2017-08-01 DOI:10.19150/MMP.7621

C. Vanegas, F. Muñoz

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引用次数: 1

摘要

难选矿石中存在硫化物和复杂硫化物，这些硫化物中含有隐伏或微细的金，抑制了金属金在溶液中的转化，对难选矿石中贵金属的提取和纯化效果极差。这些矿物的氰化反应导致金回收率低，从而导致经济损失。因此，有必要研究最优的理论和实践方案。为了提高回收率，减少经济损失，采用焙烧预处理和高压釜压力氧化等预处理方法使金包裹在硫化矿物中。被遮挡的金可以用氰化浸出法提取。

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Cyanidation tests and pretreatments to recover gold from a refractory ore in Colombia

Background The extraction and purification of precious metals from refractory ore, is extremely poor due to the ore sulfides and complex sulfides within the refractory ore. These sulfides contain concealed or microscopic gold, which inhibits the transformation of metallic gold in solution. The cyanidation of these minerals results in low gold recoveries, which in turn results in economic losses. Therefore, it is necessary to research optimal theoretical and practical alternatives. To increase recovery and reduce economic losses, pretreatments such as roasting pretreatments and pressure oxidation in autoclave were used to render the gold occluded in the sulfide minerals. The occluded gold will be amenable to extraction by cyanide leaching.

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来源期刊

Minerals & Metallurgical Processing 工程技术-矿业与矿物加工

CiteScore

0.84

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： For over twenty-five years, M&MP has been your source for the newest thinking in the processing of minerals and metals. We cover the latest developments in a wide range of applicable disciplines, from metallurgy to computer science to environmental engineering. Our authors, experts from industry, academia and the government, present state-of-the-art research from around the globe.