Refining Techniques for Different Types of Gold Ores
When it comes to refining gold ore, different types of ores require specific techniques to extract the precious metal effectively. The two main categories of gold ores are free-milling and refractory ores.
Free-milling ores contain visible gold that can be easily separated using standard milling and cyanidation methods. These conventional techniques involve crushing the ore into a fine powder and then leaching it with cyanide solutions to dissolve the gold.
Refining Techniques for Different Types of Gold Ores
On the other hand, refractory ores have low gold recovery rates due to their complex mineralogy or presence of sulfides. To refine these challenging ores, specialized processes such as roasting, pressure oxidation, or bioleaching may be required.
Each refining technique for different types of gold ores has its unique advantages and limitations. Understanding the characteristics of the ore is crucial in selecting the most suitable method for optimal extraction efficiency.
Spodumene: According to the hard rock crushing process, the crushed product is generally 5-40mm, combined with different design requirements of customers, two-end or three-stage crushing, high-grade crushed products (above 4-5%) can be directly used in the metallurgical process to produce lithium carbonate Or lithium hydroxide, the particle size of the finished product is generally around 20-40mm; low-grade generally requires ball mill grinding and separation, and the particle size of the finished product is generally around 5-20mm;
