The effect of contaminant carbon films on the leaching of gold

氰化过程中的一个主要问题是预浸，这会导致尾矿严重损失黄金。人们过多地强调游离碳或石墨颗粒的致盲和表征，而不是将碳或石墨视为其他矿石颗粒之上的一层。本项目的目的是研究污染碳层对硫化矿石中金的浸出的影响。了解矿物表面碳层在预浸和浸出过程中的确切作用，对于制定能够改进提取的工艺策略至关重要。

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.