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Development of carbon adsorption process - carbon column peo

2020-11-03 14:37

Introduction：Development of carbon adsorption process - carbon column peocess Carbon column processis a processfor recovering cyanide complex from solution.The activated carbon is placed in several series channels, and the solution flows upward through

Development of carbon adsorption process - carbon column peocess

Carbon column process is a process for recovering cyanide complex from solution.The activated carbon is placed in several series channels, and the solution flows upward through the carbon layer, as shown in figure 8.2-3.Using injector stringing, this process is better than using concealed impeller pump.
This recovery process of the gold cyanide complex has been used for grinding cyanidation.Cyanide is fed into the grinding circuit with the ore.In the grinding circuit, the surface of gold particles is always fresh and has high reactivity, and the diffusion rate of various ions in the slurry is also high. Therefore, the dissolution rate of gold is quite fast, and the leaching rate of gold in the grinding circuit can reach over 50%.The carbon column process is used to recover the dissolved gold from the thickener overflow of the grinding circuit.The advantage of this process is that the loss of carbon is very low because it is free from stirring and grinding of slurry.Since the mass transfer in solution is faster than in slurry, the adsorption speed and gold carrying capacity of carbon will be higher.If the carbon column rocess and the carbon in pulp  adsorption time is the same, the carbon column process of tailings will be lower.
Most carbon column process is a section adsorption.The column is a suspended bed layer, and the fixed bed layer is studied.
One innovation of the carbon column process is the use of movable carbon adsorption column.This column is connected in series by moving the column, rather than transporting carbon from one column to another.Finally, the  gold-loaded carbon is moved along with the adsorption column to desorption and pickling operations.This minimizes carbon wear.
Example of resin in pulp - processing rich silver and gold -
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