Project Overview
This project involves the processing of 200,000 tons of oxidized gold ore through an open-air heap leaching method at a mining site located in Nanyang, Henan Province, China. The ore is associated and oxidized in nature, with an average gold grade of 1.5 grams per ton (g/t).
Technical Process
The project utilizes a heap leaching technique, which is particularly effective for low-grade, oxidized gold ores. The process includes the following key parameters:
- Leaching Method: Heap leaching (open-air)
- Chemical Solution: Environmentally friendly leaching agents
- pH Control: Maintained at pH 9-10 to optimize gold recovery and minimize environmental impact
- Chemical Consumption: Approximately 600 grams per ton (g/t) of ore
- Leaching Efficiency: Achieves a final gold recovery rate of 75%
Production Timeline
- Total Production Period: 5 months
- The leaching process is designed to be continuous and scalable, ensuring efficient recovery of gold over the project duration.
Expected Output
Based on the ore grade and recovery rate, the estimated gold output is calculated as follows:
- Ore Processed: 200,000 tons
- Gold Content: 200,000 tons × 1.5 g/t = 300,000 grams (300 kg)
- Recoverable Gold: 300 kg × 75% recovery = 225 kg of gold
Environmental Considerations
The project strictly adheres to environmental protection standards by:
- Using eco-friendly leaching chemicals
- Maintaining a controlled pH environment to prevent contamination of surrounding ecosystems
- Implementing proper waste management and monitoring systems to ensure minimal environmental footprint
Economic Significance
This heap leaching project is designed to be cost-effective and environmentally sustainable. It demonstrates the viability of processing low-grade oxidized gold ore, contributing to:
- Increased local gold production
- Economic development of the Nanyang region
- Advancement of green mining practices in China
Whatsapp:+86 133 1927 7356
Email:Desen@oremagnetic.com
