Carbon in pulp

Activated carbon acts like a sponge to aurocyanide and other complex ions in solution.

Activated carbon is used in methane and hydrogen storage, air purification, solvent recovery, decaffeination, gold purification, metal extraction, water purification, medicine, sewage treatment, air filters in gas masks and respirators, filters in compressed air, teeth whitening, production of hydrogen chloride in dark and many other applications.

Carbon in pulp (CIP) is an extraction technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process.

Carbon in pulp (CIP) is an extraction technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process.

Carbon in pulp (CIP) is an extraction technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process. Hard carbon particles (much larger than the ore particle sizes) can be mixed with the ore and cyanide solution mixture.

Activated carbon acts like a sponge to aurocyanide and other complex ions in solution. Carbon in pulp (CIP) is an extraction technique for recovery of gold which has been liberated into a cyanide solution as part of the gold cyanidation process.

As such it is used in most industrial applications where the presence of competing silver or copper does not prohibit its use.

As such it is used in most industrial applications where the presence of competing silver or copper does not prohibit its use.

Hard carbon particles (much larger than the ore particle sizes) can be mixed with the ore and cyanide solution mixture.

The gold cyanide complex is adsorbed onto the carbon until it comes to an equilibrium with the gold in solution.

Because the carbon particles are much larger than the ore particles, the coarse carbon can then be separated from the slurry by screening using a wire mesh.

In the final tank, fresh or barren carbon is put in contact with low grade or tailings solution.

Typically concentrations as high as 4000 to 8000 grams of gold per tonne of carbon (g/t Au) can be achieved on the final loaded carbon, as it comes in contact with freshly leached ore and pregnant leach solution (PLS).

Typically concentrations as high as 4000 to 8000 grams of gold per tonne of carbon (g/t Au) can be achieved on the final loaded carbon, as it comes in contact with freshly leached ore and pregnant leach solution (PLS).

Typically concentrations as high as 4000 to 8000 grams of gold per tonne of carbon (g/t Au) can be achieved on the final loaded carbon, as it comes in contact with freshly leached ore and pregnant leach solution (PLS).

Typically concentrations as high as 4000 to 8000 grams of gold per tonne of carbon (g/t Au) can be achieved on the final loaded carbon, as it comes in contact with freshly leached ore and pregnant leach solution (PLS).

The final loaded carbon then is removed and washed before undergoing "elution" or desorption of gold cyanide at high temperature and pH.

The final loaded carbon then is removed and washed before undergoing "elution" or desorption of gold cyanide at high temperature and pH.

The final loaded carbon then is removed and washed before undergoing "elution" or desorption of gold cyanide at high temperature and pH.

Ethanol can also be used to desorb gold from activated carbon, but safety concerns have slowed its acceptance in the gold extraction industry.

The final loaded carbon then is removed and washed before undergoing "elution" or desorption of gold cyanide at high temperature and pH. Ethanol can also be used to desorb gold from activated carbon, but safety concerns have slowed its acceptance in the gold extraction industry.

Ethanol can also be used to desorb gold from activated carbon, but safety concerns have slowed its acceptance in the gold extraction industry.

Musselwhite mine uses a gold cyanidation and CIP (carbon in pulp) extraction process.

An open cut mine and carbon-in-pulp treatment plant operated from 1988 to 1990 near the Homeward Bound mining area and surface evidence from earlier workings was lost in the more recent operations.