Mining operations often send samples for testing to commercial laboratories. Unless a customised test is requested, they expect laboratories use standard procedures, which are reproducible. A thermal coal and metallurgical were sent eight laboratories, requested perform basic flotation (AS 4156.2.1-2004) sequential procedure test, i.e., tree 4156.2.2-1998). This study compared the reports produ...

Recently, coal fly ash has become a potential candidate as secondary resource of rare earth elements (REE). In this investigation, we studied the recovery REE from commercial power plant. The specific aim was to assess technical feasibility recovering using conventional preconcentration methods, including gravity separation, magnetic and froth flotation. experimental results revealed that flota...