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વ્યાપારિક ધાતુશાસ્ત્રની પ્રક્રિયામાં સલ્ફાઇડની અયસ્કમાંથી ધાત્વિય કોપરની રચનામાં શુ શામેલ છે?
$C{u_2}S\, + \,\frac{3}{2}\,{O_2}\, \to \,C{u_2}O\, + \,S{O_2}\,;$ $C{u_2}O\, + \,C\, \to \,2Cu\, + \,CO$
$C{u_2}S\, + \,\frac{3}{2}\,{O_2}\, \to \,C{u_2}O\, + \,S{O_2}\,;$ $2C{u_2}O\, + \,C{u_2}S\, \to \,6Cu\, + \,S{O_2}$
$C{u_2}S\, + \,2{O_2}\, \to \,CuS{O_4}\,\,;$ $CuS{O_4}\, + \,C{u_2}S\, \to \,3Cu\, + \,2S{O_2}$
$C{u_2}S\, + \,\frac{3}{2}\,{O_2}\, \to \,C{u_2}O\, + \,S{O_2}\,;$ $C{u_2}O\, + \,CO \to \,2Cu\, + \,C{O_2}$
Solution
In the extraction of copper, reactions occurs:
$2 Cu _2 S +3 O _2 \rightarrow 2 Cu _2 O +2 SO _2$
$Cu _2 S +2 Cu _2 O \rightarrow 6 Cu + SO _2$
and
$2 Cu _2 S +5 O _2 \rightarrow 2 CuSO _4+2 CuO$
$2 Cu _2 S + CuSO _4 \rightarrow 4 Cu +2 SO _2$
Also, copper is not reduced by carbon/carbon monoxide.
