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Table 1 The components of the chromium-containing alumina sludge

From: Preparation of Alumina Nanorods from Chromium-Containing Alumina Sludge

Components Al2O3 Cr2O3 SiO2 Cr6+ Fe2O3 MgO Na2O SO4 2−
wt/% 55 ~ 65 1 ~ 5 <4 6 ~ 10 <0.5 <0.036 <0.5 <0.8