Compared with the CIP, the resin method has the following advantages:
1. The technological process of resin pulp method is similar to that of carbon pulp method. However, the investment of electrolytic equipment is small, the production cost is low, and the production process is simple.
2. The specific surface area of the resin is large, and the gold absorption speed, gold absorption capacity and strength are higher than those of activated carbon. Therefore, under the same conditions, the gold recovery rate of resin pulp method is higher than that of carbon pulp method, with less resin consumption and low production cost.
3. Non toxic resolution under normal temperature and pressure. The resin can be recycled repeatedly without thermal activation regeneration.
4. The resin has poor selectivity and large adsorption capacity for silver, which can better adsorb silver (the adsorption rate of silver can reach more than 99%), and silver and gold are eluted at the same time during resolution.
5. The ore contains rare precious metals, and the effect of resin pulp method is obvious.
6. The resin pulp method is still effective when there are an appropriate amount of flotation reagents, carbon and other organic substances in the pulp.
7. The recovery rate of gold extraction by resin adsorption is high.
1. The resin is prone to aging during recycling, and the resin adsorption capacity is relatively reduced. The resin density in the pulp must be increased to meet the requirements of adsorbing gold. The increase of resin density increases the wear of the resin, increases the resin consumption, and increases the loss of gold at the same time.
2. The resin particle size is small, and the mesh required for screening is fine, which increases the difficulty of separating the resin from the pulp, often resulting in "full tank". There is a phenomenon of resin concentration down the tank.
1. It is applicable to all ores treated by carbon slurry method.
2. For gold ores with more carbon and mud, the effect of carbon pulp method is often not ideal, and resin pulp method has certain advantages.
3. The leaching solution of gold ore containing natural organic matter is not suitable for carbon slurry treatment, but the resin slurry method is very effective.
4. There is no pulp, clear liquid or turbid liquid that deteriorates the ion exchange resin.
5. Using resin adsorption to extract gold in heap leaching and pool leaching mines can improve the recovery rate of gold and reduce the production cost at the same time.
