Case Study Antam Mine: Viscosity Reduction Allows for Increased Gold Leach Throughput

A two-month plant trial at the Antam Pongkor gold leaching plant in Indonesia gave valuable operational results. 

The use of Pionera L-800 significantly improved the process and provided an excellent return on investment. The plant trial revealed a throughput increase of 9% and an increased gold recovery.

This is an executive summary based on the scientific article “BioPolymer Addition to Boost Recovery and Throughput in Gold Leaching Process. A Case Study From Antam Pongkor, Indonesia” by Dr. R.A. Lauten, H. Sitanggang and A. Pratomo; MetSoc of CIM, Proceedings of Hydrometallurgy, 7th international symposium, 2014

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Key takeaways:

  • Increased throughput
  • Increased gold recovery
  • Excellent Return on Investment
  • No extra capital expenditure
  • No negative downstream effects in carbon circuit and tails processes

The findings led to the continuous use of Pionera L-800 on both CIL production lines at the Pongkor operation.

 

Gold recovery in 2-month-long plant trial in Gold CIL circuit.

 

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