Introduction
Gold CIP (Carbon in Pulp) refers to the process of gold extraction from carbon pulp, which is a hydrometallurgical process of extracting gold through cyanide leaching and activated carbon adsorption.It is Suitable for treating middle and low grade ore (Au 2~5g/t), sulfide bearing or complex gold ore.
Gold CIL is a process that improved on the basis of CIP process. The feature of this process is that gold leaching and adsorption are carried out simultaneously.It is Widely used in the treatment of low-grade gold ores or tailings..
Process of Gold CIP/CIL
About Gold CIP/CIL Plant
A complete gold cil processing plant contains seven systems: Crushing system,Grinding system,Thicking system,Leaching system,Electric system,Tailling system.
Process Flow:
The gold CIP process includes seven operation stages: preparation of leaching pulp, cyanide leaching, carbon adsorption, gold-loaded carbon desorption, electrolysis to obtain muddy gold, de-gold carbon recycling, and treatment of leaching pulp.
1. Preparation of leached pulp
The gold ore is crushed and ground to a size suitable for cyanide leaching. Remove impurities (such as sawdust) from the pulp to prevent it from clogging the carbon screen.
2. Cyanide leaching
Stirring and leaching of slurry with the help of chemicals.
3. Activated carbon adsorption
The slurry after cyanide leaching is introduced into the adsorption tank, and the dissolved gold in the slurry is adsorbed by activated carbon to become gold-loaded carbon.
4. Gold-loaded carbon desorption
The gold-bearing carbon is separated from the pulp by the carbon screen, and the gold complex is replaced in the desorption system
5. Get gold mud by electric shock
The noble liquid obtained by desorption of gold-loaded carbon is recovered by electric shock to obtain gold mud.
6. Degold carbon recycling
After desorption, activated carbon is treated to remove other aggregates before entering the adsorption tank for recycling.
7. Treatment of leached pulp
The pulp can be treated by acidizing volatile lye absorption.
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