(1)将混合固体灼烧,2Fe(OH)3==加热==Fe2O3 + 3H2O
(2)加氢氧化钠,过滤,Al2O3+2OH-=2AlO2-+H2O
(3)通氯气,2Fe2+ + Cl2 = 2Fe3+ + 2Cl-
(4)加铁粉,Fe+2Fe3+=3Fe2+
(5)加铁粉,过滤,Fe+Cu2+=Fe2++Cu
(6)加氢氧化钠,过滤,2Al+2OH- +2H2O===2AlO2- +3H2
(1)将混合固体灼烧,2Fe(OH)3==加热==Fe2O3 + 3H2O
(2)加氢氧化钠,过滤,Al2O3+2OH-=2AlO2-+H2O
(3)通氯气,2Fe2+ + Cl2 = 2Fe3+ + 2Cl-
(4)加铁粉,Fe+2Fe3+=3Fe2+
(5)加铁粉,过滤,Fe+Cu2+=Fe2++Cu
(6)加氢氧化钠,过滤,2Al+2OH- +2H2O===2AlO2- +3H2