We examine different project options including energy selection and a comparison of on site acid regeneration versus acid consumption which were being considered for the project. The LCA results show that the global warming potential of producing 1 kg of rare earth oxide from Songwe Hill is between 17 and 87 kg CO 2 eq. A scenario that combines on site acid
Resource extraction and processing Mining = Overburden, Waste Rock, Sub Ore, and Ore Ore up to 13 percent REE or greater Tailings up to 0.5 percent REE or greater Beneficiation = Grinding, flotation, thickening, separation, drying Results in a mineral concentrate up to 60 percent or greater REO
10%· 21/08/2013· The chlorine consumption for this process is slightly lower than the Goldschmidt process, resulting in 0.84 tonnes/tonne of RE chlorides, and the recovery rate of RE is 91%.9 As commented in the previous section, RE fluorides can be further processed to RE chlorides by digestion with sodium hydroxide and then neutralized using hydrochloric
June 10, 2020
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