Activated carbon for gold extraction
1 . Introduction As a precious metal, gold has attracted much attention since ancient times due to its unique physical properties and wide application value. However, the process of mining and refining gold is often accompanied by high costs and environmental pressures. In recent years, with the advancement of science and technology, activated carbon gold extraction technology has gradually emerged and become an efficient and environmentally friendly gold recovery method. 2. The principle of refining gold with activated carbon The principle of activated carbon refining gold is mainly based on the strong adsorption capacity of activated carbon and the chemical properties of gold. Activated carbon is a porous carbon material with a large specific surface area and adsorption capacity. During the refining process, gold usually exists in solution in the form of ions or complexes. When these solutions pass through the activated carbon layer, gold ions or complexes are adsorbed by the a