Product shape: granules
Product iodine value: 900 or above
Product usage: Modern gold mining production, mainly used for the separation and extraction of precious metals in the gold metallurgical industry using carbon slurry and accumulation methods.
Product parameters
PRODUCT PARAMETERS
Model Indicator (customizable) Purpose
Coconut shell granular charcoal particle size: 3-16 mesh
Iodine value: 900-1100mg/g
Strength: 95-98%
Specific gravity: 0.45-0.55g/ml Coconut shell charcoal specially used for gold extraction by carbon slurry method and accumulation method (high strength requirements)
Gold-refined coconut shell charcoal appears as black amorphous particles with uniform particle size, developed pores, large specific surface area, strong adsorption capacity, high mechanical strength, low bed resistance, good chemical stability, easy regeneration and wear resistance. It is very suitable for modern gold mining production and is mainly used for the separation and extraction of precious metals in the gold metallurgical industry using carbon slurry and accumulation methods. It has a very high adsorption capacity and is characterized by rapid adsorption. Its advantages are high strength and wear resistance. It is used for gold extraction and precious metal extraction. It not only has large adsorption capacity and rapid adsorption, but also greatly improves the gold recovery rate and equipment. production efficiency and can be used repeatedly three to four times.
REFINING MECHANISM
In the cyanide solution, gold is adsorbed on the inner surface of activated carbon in the form of ion pairs or neutral molecules, or complex ions combine with metal ions and precipitate in the gaps of activated carbon, where the metal ions come from the solution or activated carbon. Ash content (these metal ions may include Ca, K, Na, etc.).
Au(CN)2- chemically decomposes to form insoluble AuCN, which remains in the pores of the carbon.
Part of the gold cyanide complex is reduced to certain compounds containing gold atoms with oxidation states of 0 and 1.
Au(CN)2- or AuCN is reduced to metallic Au.
