The effect of contaminant carbon films on the leaching of gold

碳膜污染对金浸出的影响

• 批准号: LP0347634
• 负责人: Prof Jannie Van Deventer
• 金额: --
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0347634
• 关键词: effect; contaminant; carbon; films; leaching

A major problem in cyanidation is preg-robbing, which results in severe gold losses to tailings. Too much emphasis has been placed on the blinding and characterisation of free carbon or graphite particles, instead of considering carbon or graphite as a layer on top of other ore particles. It is the aim of this project to investigate the effect of contaminant carbon layers on the leaching of gold from sulphide ores. The understanding of the exact role of carbon layers on mineral surfaces in both preg-robbing and leaching is essential to devise process strategies that could lead to improved extraction.

氰化提金的一个主要问题是劫矿，这会导致金严重流失到尾矿中。过于强调游离碳或石墨颗粒的遮蔽和表征，而不是将碳或石墨视为其他矿石颗粒顶部的一层。本项目的目的是研究污染碳层对硫化矿浸金的影响。了解矿物表面碳层在劫矿和浸提中的确切作用，对于设计可改善提取的工艺策略至关重要。