A) \[C{{u}_{2}}S+2FeO\xrightarrow{{}}2Cu+2Fe+S{{O}_{2}}\]
B) \[C{{u}_{2}}S+2CuO\xrightarrow{{}}6Cu+S{{O}_{2}}\]
C) \[4C{{u}_{2}}O+FeS\xrightarrow{{}}8Cu+2FeS{{O}_{4}}\]
D) \[2C{{u}_{2}}O+FeS\xrightarrow{{}}4Cu+Fe+S{{O}_{2}}\]
Correct Answer: B
Solution :
Ore- copper pyrites ,\[CuFe{{S}_{2}}\] Concentrated pyrites ore (froth- floatation process) is roasted below\[{{800}^{o}}C\].\[FeS\]is converted to\[FeO\]while copper remains as sulphide. Roasting\[2FeS+3{{O}_{2}}\xrightarrow{\Delta }2FeO+2S{{O}_{2}}\uparrow \] Smelting\[FeO+Si{{O}_{2}}\xrightarrow{{}}\underset{slag}{\mathop{FeSI{{O}_{3}}}}\,\] (\[Si{{O}_{2}}\]either is present ore or is added) Bessemerisation \[2C{{u}_{2}}S+3{{O}_{2}}\xrightarrow{{}}2C{{u}_{2}}O+2S{{O}_{2}}\] \[2C{{u}_{2}}O+C{{u}_{2}}S\xrightarrow{{}}6Cu+S{{O}_{2}}\](final step)
You need to login to perform this action.
You will be redirected in
3 sec
