The process design data from the test will be used in the definitive feasibility study being prepared for the project that is due to be completed by the end of the year.
Platina plans to use a high pressure acid leach to treat its Owendale ore.
The test was conducted at SGS Minerals' facility in Malaga, Western Australia from April 16 to 27.
About 6t of material from the Owendale project, blended from existing core, was ground to the appropriate particle size to feed the pilot plant.
Those pilot plant feed samples were prepared to represent the first five years production from the mine plan, with SGS managing the feed preparation to provide a uniform feed for the program.
The sole variable tested during the pilot trial was the acid to ore ratio...