Copper isthemistnobleoffirstrow transitionmetalsandoccursinsmalldepositsinseveralcountries.Oresofcopperinclude chalcanthite(CuSO_4. 5H_ 2O ) ,atacamite(Cu_2Cl (OH) _3 ),cuprite(Cu_ 2 O ), copperglance(Cu_ 2S),andmalachite(Cu_2 (OH)_2CO_3 ) . However, 80 % oftheworldcopperproductioncomesfrom theorechalcopyrite(CuFeS_2) . The extraction ofcopper from chalcopyrite involvespartialroasting,removalofironandself - reductionIron isremovedfromchalcopyriteas

Copper isthemistnobleoffirstrow transitionmetalsandoccursinsmalldeposi

1.	Copper isthemistnobleoffirstrow transitionmetalsandoccursinsmalldepositsinseveralcountries.Oresofcopperinclude chalcanthite(CuSO_4. 5H_ 2O ) ,atacamite(Cu_2Cl (OH) _3 ),cuprite(Cu_ 2 O ), copperglance(Cu_ 2S),andmalachite(Cu_2 (OH)_2CO_3 ) . However, 80 % oftheworldcopperproductioncomesfrom theorechalcopyrite(CuFeS_2) . The extraction ofcopper from chalcopyrite involvespartialroasting,removalofironandself - reductionIron isremovedfromchalcopyriteas
Answer» ` FeO` `FES ` `Fe_ 2 O_3` `FeSiO_ 3` SOLUTION :Thepartially roastedoreismixedwith SILICA (FLUX )and littlecokeandheatedin ablastfurnacewhenFeOpresentas impurityisremovedasferrous silicateslag. ` FeO + SiO_2to FeSiO _3downarrow`