Figure 5
From: A novel application of hematite precipitation for high effective separation of Fe from Nd-Fe-B scrap
(a) Retention rates of Nd, Pr and Dy and (b) removal rate of total Fe after hydrothermal treatment with the addition of glucose; the variation of (c) pH and (d) total organic carbon before and after reaction; and (e) nitrate concentration in Nitric-A.
