Gold Leach Kinetics

OXYGEN, CYANIDE, LEAD NITRATE & ULTRAFINE GRINDING

Overview

Why do a Gold Leach Kinetics Project?

Certain aspects of your leaching circuit need to be analysed to understand the hidden benefit in gold leach kinetcis.

There are several reasons why a gold leach kinetics project should be undertaken such as:

• To increase gold recovery (1 to 5% range)
• Determine if pre-Oxidation will be beneficial
• Specify the right O2 & NaCN dosage/control equipment
• Size the O2 equipment correctly
• Adjust leach to optimal NaCN to DO Ratio (for max kinetics)
• Select better setpoints for both DO and CN to optimise kinetics and reduce NaCN consumption
• Determine feed material O2-demand and CN-demand
• Conduct scenario calculations (leach modelling) for different feed blends – current and future

Consulting

Martin Verster is a consultant for Process IQ based in South Africa, specialising in Au-Leach Kinetics in leaching circuits for over 12 years.

He has provided many gold mines with reporting and insight into:
– characterisation of feed ores (O2 & CN demands)
– cyanide and oxygenation dosage systems (audit & specification) and
– determination of optimal NaCN & DO ratios to maximize kinetics

If you are looking for an overview of this, please contact info@processiq.com.au.