Selecting a resin to recover Gold

Resin must be selected considering the following factors:

• Strong base resins have higher loading capacity and rate. However selectivity is poor and elution is difficult.
• Weak base resins are selective and elution is easy, but its loading rate is slow.
• Strong base resins are cheaper than weak base resins.
• Weak base resins offer a good elution rate and the elution reagents are cheaper than the reagents employed in strong base resins.
• Resins to be chosen must be consider the resistance to osmotic shock in order to don’t alter its structure.
• Resin must have an appropriate porosity.
• Resin must not be soluble.
• Resins physical resistance is an important aspect because there are some losses by mechanical agitation, pumping, and screening.

Gold Mining &  Gold Prospecting GOLD RECOVERY WITH ION EXCHANGE RESINS History of resins in Gold Recovery Resins structure in Gold Recovery Process Resin Applications; Chelating resins. Brands of resins Polystyrene anion exchangers. Resin properties Strong base resins Weak base resins Ion exchange technology adapted to the treatment of aurocyanide solutions comprises  three steps: loading, elution, and recovery List Methods of Elution Gold  Recovery after Elution Selecting a resin to recover Gold Development of the process of Resin Gold Extraction Application of the process of Adsorption of complex aurocyanide Examples - Case Studies of plants with resins  recovery systems GOLD RECOVERY WITH ION EXCHANGE RESIN Process Summary REFERENCES