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Boron-bearing magnetite concentrate is typically characterized by low grade of iron and boron (wTFe = 51% – 54%, wR2O3 = 6%–8%), as well as the close intergrowth of ascharite phase and magnetite phase. A promising technology was proposed to separate iron and boron by coupling the direct reduction of iron oxides and Na activation of boron minerals together. The influence of Na2CO3 as additive on the...
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