Các phản ứng xảy ra:
\(F{e_3}{O_4} + 8HCl\xrightarrow{{}}FeC{l_2} + 2FeC{l_3} + 4{H_2}O\)
\(4Fe{S_2} + 11{O_2}\xrightarrow{{{t^o}}}2F{e_2}{O_3} + 8S{O_2}\)
\(Cu + 2{H_2}S{O_4}\xrightarrow{{{t^o}}}CuS{O_4} + S{O_2} + 2{H_2}O\)
\(F{e_x}{O_y} + (y - x)CO\xrightarrow{{{t^o}}}xFeO + (y - x)C{O_2}\)
\(3F{e_x}{O_y} + 2yAl\xrightarrow{{{t^o}}}3xFe + yA{l_2}{O_3}\)
\(2F{e_x}{O_y} + (6x - 2y){H_2}S{O_4}\xrightarrow{{{t^o}}}xF{e_2}{(S{O_4})_3} + (3x - 2y)S{O_2} + (6x - 2y){H_2}O\)
