PMET Resources (ASX:PMT) said bench-scale testwork focused on caesium extraction from pollucite samples at its Shaakichiuwaanaan project achieved more than 97% recovery of caesium into solution via leaching of pollucite concentrate with sulfuric acid, according to a Monday Australian bourse filing.
The company said bench-scale testwork on impurity removal was also successful, demonstrating the removal of impurities such as aluminum, with an opportunity identified to potentially recover a rubidium by-product.