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What is impure copper: The smelting process takes copper ore and processes it into metal. This metal (sometimes called 'blister copper' contains other metals (impurities) which often include valuable metals as gold, silver, arsenic, platinum and others. We all know that pure copper is important in making electrical wire, but copper wires' electrical conductivity can be dramatically reduced by those impurities if not well purified.
The demand for aluminium products is growing steadily because of their positive contribution to modem living. The excellent recyclabilrty of aluminium, together with its high scrap value and low energy needs during recycling make aluminium highly desirable to one and all.