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Proven technology
Coral Bay HPAL Example Ramp up rates
✓ HPAL chemistry is well known and has been ✓ Horizontal autoclave at Coral Bay built Train 1: 2005, Train 2: 2008
applied successfully since the 1960s ✓ At Coral Bay name plate production capacity exceeded in first year of
✓ Single reactor production and thereafter
✓ Recovery of waste heat = Energy savings ✓ Owners built a sister plant at Taganito
✓ Annual scale cleaning – uptime >90%
✓ Minimal engineering extrapolation Coral Bay Ramp Up
1.4
1.2
Ni Prodn, % of Design 0.8 1
0.6
0.4
0.2
0
0 0.5 1 1.5 2 2.5 3
Production Year
Train 1 Train 2
The information on this slide is based on the Coral Bay HPAL process facility in the Philippines that is not an asset of Ardea, but is shown as an example of the successful implementation of HPAL technology. 11
