Method and apparatus for recovering copper, bronze and lead from mixture of copper oxide, tin oxide and lead oxide
AssigneePukyong National University Industry-University Cooperation Foundation
InventorJei Pil Wang
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Abstract
A method and an apparatus for recovering copper, bronze and lead by allowing methane gas to flow into a reactor and heat-treating a mixture of copper oxide, tin oxide and lead oxide under a temperature condition of 700-900° C. is disclosed. The method includes placing a mixture of copper oxide, tin oxide and lead oxide in a reactor, increasing the temperature inside the reactor, and allowing a reductive gas to flow into the reactor so as to heat-treat the mixture.
Claims10
A method for recovering copper, bronze and lead from a mixture of copper oxide, tin oxide and lead oxide, the method comprising:
- placing a mixture of copper oxide, tin oxide and lead oxide inside a reactor;
- raising a temperature inside the reactor;
- introducing a reducing gas into the reactor and heat-treating the mixture at 700 to 900° C. to separate and recover solid copper and molten bronze;
- and
- recovering vaporized lead through a recovery line connected to an upper end of the reactor;
- wherein recovering the lead through the recovering line includes:
- cooling and depositing the vaporized lead;
- dust-collecting a portion of lead that is not deposited in the depositing step;
- and
- recovering a portion of lead that is not collected in the dust-collecting step.
Dependencies are inferred from the claim text.