Investor Presentaiton
Lihir - Pursuing improvement in recovery
Initiative 1
Flash Flotation & Cyclone
Efficiency
Additional Flotation
Capacity
Grind Size Reduction
Description
Recover high grade fast floating material to reduce
fines losses through flash flotation. Debottleneck and
upgrade existing grinding classification.
Additional roughing capacity to improve residence
time
Potential
Recovery
Uplift
Capital 4
2 & 3
Target
Timing 5
1.5% to 2.5%
$$
FY21
~0.5%
SA
FY24
Tertiary grinding to reduce grind
flotation/improve flotation response
size
to
2% to 3%
$$$
FY24
1 Initiatives are currently in Feasibility Study Phase
2 Estimated recovery uplift will be dependant on plant ore feed
characteristics and throughput
3 Potential recovery uplift values are not additive when initiatives
are combined. The Study will undertake full metallurgical
modelling to understand interactions of combined initiatives and
recommend a roadmap for recovery uplift.
4 Capital estimates range from approximately $10m to $100m
5 Estimated timing for implementation
FGO Flash Flotation & Cyclone Efficiency
HGO1 Flash Flotation & Cyclone Efficiency
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