Reward Minerals (ASX: RWD) has successful completed the potash harvest phase of its current pilot evaporation trial at Sylvania Station, Western Australia, recovering slightly more Potash Mixed Salt than predicted.
The trial, which was based on 10,000 litres of brine extracted from Lake Disappointment produced 825kg of crude Potash Mixed Salts.
This sample has been coarse crushed and blended to provide a uniform product.
Sample splits have been sent to several laboratories for chemical and mineralogical analysis.
Bulk samples will be dispatched by the end of this week to independent laboratories for the metallurgical testwork required to confirm/establish the process flowsheet for the Lake Disappointment Potash Project
Data is expected to be available within two to three weeks.
Reward will continue to carry out metallurgical testwork over the next 3 to 4 months but preliminary results of the key flotation testwork are expected within the next 3 to 4 weeks.
Should this be successful with high recoveries of Schoenite/Leonite intermediate product, it will finalise the flowsheet/mass balance parameters and proceed with final plant design.
Lake Disappointment hosts an Indicated Resource of 24.4 million tonnes of potassium sulphate.
The chemistry is similar to the Great Salt Lake in that it is a high sulphate brine.
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