
Fig 1 Flow sheet for the leaching and recovery of niobium and tantalum Table 1 Chemical analysis results of the niobiumtantalum ore sample wt Nb 2O 5Ta SnO TiO Fe 3 MnO SiO 2705 2500 1270 469 1176 589 268 Fig 2 XRD pattern of the lowgrade niobiumtantalum ore sample 220 X Wang et al Hydrometallurgy 98 2009 219223 View Notes angsynthesewhabouchipdf from METALLURGY 110 at Catholic University of the North Coquimbo WHABOUCHI LITHIUM MINE AND HYDROMETALLURGY PLANT PROJECTS NEMASKA LITHIUM INC SUMMARY