Laboratory Work for Improved Zinc Leaching with Pionera Biopolymer

A series of laboratory and pilot plant evaluations in autoclave leaching were conducted with plant provided zinc ore concentrate and plant provided sulfuric acid.

Conditions from the plant were replicated in the autoclave to achieve simulated leaches. This included oxygen levels, acid levels and leach temperature and times.

Results were determined with Zn analyses via atomic adsorption of the pregnant leach solution and tails to assess recovery.

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Key takeaways:

• Increased Zinc recovery
• Reduced leach times.
• Reduced scale formation.
• Potential for throughput improvement.
• Lower capital expenditure required.

Increased zinc recovery and reduced leach times with Pionera biopolymer.