The Four-Step Formula for Successful Gold Ore Processing

From ore to gold, the key to efficient recovery lies in scientific mineral processing. Gold flotation, recognized as an efficient gold extraction technology in the industry, achieves precise gold extraction through four key steps:

First is gold ore crushing and screening. Primary grinding is used to crush raw ore to 20-50mm, followed by classification through vibrating screens, laying the foundation for subsequent processes.

Second is grinding and classification. The grinding fineness is determined according to ore characteristics. Generally, grinding sulfide gold minerals to -75μm (60~80%) can achieve monomer dissociation, with spiral classifiers precisely controlling pulp particle size.

The core link is flotation separation, offering three solutions for different ore properties: Flotation-concentrate cyanide leaching is suitable for gold-bearing quartz vein ores, featuring low energy consumption and investment; Flotation concentrate thiourea leaching is designed specifically for high-arsenic and high-sulfur ores, being low-toxic and efficient; Flotation-concentrate roasting-high acid washing-cyanide leaching perfectly processes high-arsenic and high-sulfur flotation concentrates, significantly improving gold grade.

Finally, customized dehydration processes treat concentrates and tailings, completing the entire mineral processing flow.